Day 5: Parsing naughty-list.csv

The elves stared at their screens. They had just written the Kid struct and were testing it with Santa’s data.

But something was wrong with the data, Prancer leaned back, smirking. "We forgot something obvious, didn’t we? The data’s raw strings—we need to parse it first."

Alice,10,2
Bob,5,5
Charlie,1,9

"We need to create another function," Prancer continued. "to parse the CSV rows into Kid structs."

Blitzen slammed his mug down. "And since Santa put me in charge of this project, I’m naming the function. It’s going to be called parse_row."

An elf from the back muttered just loud enough to hear, "Ugh, he thinks he’s better than us because Santa made him lead."

Blitzen shot them a look. "I heard that. If you’ve got a better name, I’m listening."

Silence.

"Exactly. parse_row it is."

The Frustration

Blitzen paced. "We need a function that takes a CSV row, splits it, and converts it into a Kid. Name is easy—it stays a String. The good and bad deeds, though, need to be parsed to u32."

"But what if the row has garbage data?" asked an elf, holding up a note with Charlie,,9 scribbled on it.

Prancer rolled his eyes. "Obviously, we handle errors. No .unwrap() shortcuts."

The Task

Blitzen wants you to create an associated function for the Kid struct and name it parse_row. It should take a CSV row as a &str and return a Result<Kid, &'static str>. The function should:

Split the CSV row into parts.
Extract the name as a String.
Parse the second and third fields as u32 for good and bad deeds.
Finally create a Kid struct using the new() associated function we created earlier.

Hints

If you're stuck, here are some hints to help guide you:

Click to show hints

Split the Row Use split(',') to divide the CSV row into parts. let fields = row.split(',');
Get Next Field Get the next field with next(), it's going to return an Option<&str>.
Must be mutable The next() method requires a mutable reference to the iterator. So make it mutable, let mut fields = row.split(',');.
Transform Option to Result Use ok_or(&str) to convert the Option to a Result. e.g., fields.next().ok_or("Missing field").
Propagate Errors (optional) Use ? to propagate errors. e.g., fields.next().ok_or("Missing field")?.
Create a String After you get access to the &str use the to_string() method to make it a String and have Ownership.
Parse Numbers Parse the second and third fields as u32 for good and bad deeds. Use .parse(), you can either turbofish parse::<u32>() or assign a type to the variable let good_deeds: u32 = fields.next().ok_or("Missing field")?.parse();.
Map the Error The error from the parse() method can't be propagated directly, you need to map it to the return types error type &'static str using map_err(). e.g., fields.next().ok_or("Missing field")?.parse().map_err(|_| "Invalid good deeds")?.
Create the Kid Pass the extracted values to Kid::new to build the Kid struct.
Return a Result Use Ok for success and meaningful error messages (like "Invalid good deeds") for failures.

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Solutions

0x0f1

Paul4673

a day ago

4.42ms

89.24kb

pub const GOOD_WEIGHT: f32 = 1.0;
pub const BAD_WEIGHT: f32 = 2.0;
#[derive(Debug, PartialEq)]
pub enum Niceness {
    Nice(u32),
    Naughty,
}
pub struct Kid {
    pub name: String,
    pub niceness: Niceness,
}
impl Kid {
    pub fn parse_row(csv_row: &str) -> Result<Kid, &'static str> {
        // 🎁 Transform the CSV row into a Kid struct for Santa's list!
        // 🎅 Expected CSV: "Name,GoodDeeds,BadDeeds"
        //    Example: "Alice,3,1" -> name: "Alice", good_deeds: 3, bad_deeds: 1
        
        // 🎁 Your code here! 🎁
        let mut fields = csv_row.split(",");
        let name = fields.next().ok_or("No name")?.to_string();
        let good_deeds = fields.next().ok_or("empty")?.parse::<u32>().map_err(|_| " Invalid CSV format.")?;
        let bad_deeds = fields.next().ok_or("empty")?.parse::<u32>().map_err(|_| "Invalid CSV format.")?;
        Ok(Self::new(name, good_deeds, bad_deeds))
    }
    pub fn new(name: String, good_deeds: u32, bad_deeds: u32) -> Self {
        let niceness = if Self::is_nice(good_deeds, bad_deeds) {
            Niceness::Nice(good_deeds)
        } else {
            Niceness::Naughty
        };
        Self { name, niceness }
    }
    pub fn is_nice(good_deeds: u32, bad_deeds: u32) -> bool {
        if good_deeds == 0 && bad_deeds == 0 {
            return false;
        }
        let good_deeds = good_deeds as f32 * GOOD_WEIGHT;
        let bad_deeds = bad_deeds as f32 * BAD_WEIGHT;
        let ratio = good_deeds / (good_deeds + bad_deeds);
        ratio >= 0.75
    }
}

Kristupas Arifovas

Quikmove

3 days ago

5.79ms

90.44kb

pub const GOOD_WEIGHT: f32 = 1.0;
pub const BAD_WEIGHT: f32 = 2.0;
#[derive(Debug, PartialEq)]
pub enum Niceness {
    Nice(u32),
    Naughty,
}
pub struct Kid {
    pub name: String,
    pub niceness: Niceness,
}
impl Kid {
    pub fn parse_row(csv_row: &str) -> Result<Kid, &'static str> {
        // 🎁 Transform the CSV row into a Kid struct for Santa's list!
        // 🎅 Expected CSV: "Name,GoodDeeds,BadDeeds"
        //    Example: "Alice,3,1" -> name: "Alice", good_deeds: 3, bad_deeds: 1
        let mut fields = csv_row.split(',');
        let name = fields.next().ok_or("No name!")?;
        let good_deeds: u32 = fields.next()
                                .ok_or("No good deeds!")?
                                .parse::<u32>()
                                .map_err(|_| "Invalid good deeds")?;
        let bad_deeds: u32 = fields.next()
                                .ok_or("No bad deeds!")?
                                .parse::<u32>()
                                .map_err(|_| "Invalid bad deeds")?;
        Ok(Self::new(String::from(name), good_deeds, bad_deeds))
    }
    pub fn new(name: String, good_deeds: u32, bad_deeds: u32) -> Self {
        let niceness = if Self::is_nice(good_deeds, bad_deeds) {
            Niceness::Nice(good_deeds)
        } else {
            Niceness::Naughty
        };
        Self { name, niceness }
    }
    pub fn is_nice(good_deeds: u32, bad_deeds: u32) -> bool {
        if good_deeds == 0 && bad_deeds == 0 {
            return false;
        }
        let good_deeds = good_deeds as f32 * GOOD_WEIGHT;
        let bad_deeds = bad_deeds as f32 * BAD_WEIGHT;
        let ratio = good_deeds / (good_deeds + bad_deeds);
        ratio >= 0.75
    }
}

HubertBL47

3 days ago

4.03ms

89.24kb

pub const GOOD_WEIGHT: f32 = 1.0;
pub const BAD_WEIGHT: f32 = 2.0;
pub const GOOD_THRESHOLD: f32 = 0.75;
#[derive(Debug, PartialEq)] // needed for tests
pub enum Niceness {
    Nice(u32),
    Naughty,
}
pub struct Kid {
    pub name: String,
    pub niceness: Niceness,
}
impl Kid {
    pub fn parse_row(csv_row: &str) -> Result<Kid, &'static str> {
        let mut row_iter = csv_row.split(',');
        let name = row_iter
            .next()
            .ok_or("Invalid CSV format: Empty line")?
            .to_string();
        let good_deeds = row_iter
            .next()
            .ok_or("Invalid CSV format: No good deeds")?
            .parse::<u32>()
            .map_err(|_| "Invalid CSV format: Good deeds is not a valid positive number")?;
        let bad_deeds = row_iter
            .next()
            .ok_or("Invalid CSV format: No bad deeds")?
            .parse::<u32>()
            .map_err(|_| "Invalid CSV format: Bad deeds is not a valid positive number")?;
        Ok(Self::new(name, good_deeds, bad_deeds))
    }
    pub fn new(name: String, good_deeds: u32, bad_deeds: u32) -> Kid {
        Kid {
            name: name,
            niceness: Kid::is_nice(good_deeds, bad_deeds)
                .then(|| Niceness::Nice(good_deeds))
                .unwrap_or(Niceness::Naughty),
        }
    }
    pub fn is_nice(good_deeds: u32, bad_deeds: u32) -> bool {
        if good_deeds == 0 && bad_deeds == 0 {
            return false;
        }
        let good_score = good_deeds as f32 * GOOD_WEIGHT;
        let bad_score = bad_deeds as f32 * BAD_WEIGHT;
        let ratio = good_score / (good_score + bad_score);
        ratio >= GOOD_THRESHOLD
    }
}

AncientSecrets

3 days ago

3.95ms

90.44kb

pub const GOOD_WEIGHT: f32 = 1.0;
pub const BAD_WEIGHT: f32 = 2.0;
#[derive(Debug, PartialEq)]
pub enum Niceness {
    Nice(u32),
    Naughty,
}
pub struct Kid {
    pub name: String,
    pub niceness: Niceness,
}
impl Kid {
    pub fn parse_row(csv_row: &str) -> Result<Kid, &'static str> {
        // 🎁 Transform the CSV row into a Kid struct for Santa's list!
        // 🎅 Expected CSV: "Name,GoodDeeds,BadDeeds"
        //    Example: "Alice,3,1" -> name: "Alice", good_deeds: 3, bad_deeds: 1
        // 🎁 Your code here! 🎁
        let words = csv_row.split(',').collect::<Vec<_>>();
        if words.len() != 3 {
            return Err("Bad field count");
        }
        if words[0].is_empty() {
            return Err("Invalid name");
        }
        let Ok(good_deeds) = words[1].parse::<u32>() else { return Err("Invalid good_deeds"); };
        let Ok(bad_deeds) = words[2].parse::<u32>() else { return Err("Invalid bad_deeds"); };
        Ok(Self::new(words[0].into(), good_deeds, bad_deeds))
    }
    pub fn new(name: String, good_deeds: u32, bad_deeds: u32) -> Self {
        let niceness = if Self::is_nice(good_deeds, bad_deeds) {
            Niceness::Nice(good_deeds)
        } else {
            Niceness::Naughty
        };
        Self { name, niceness }
    }
    pub fn is_nice(good_deeds: u32, bad_deeds: u32) -> bool {
        if good_deeds == 0 && bad_deeds == 0 {
            return false;
        }
        let good_deeds = good_deeds as f32 * GOOD_WEIGHT;
        let bad_deeds = bad_deeds as f32 * BAD_WEIGHT;
        let ratio = good_deeds / (good_deeds + bad_deeds);
        ratio >= 0.75
    }
}

silaskoemen

6 days ago

3.91ms

89.24kb

pub const GOOD_WEIGHT: f32 = 1.0;
pub const BAD_WEIGHT: f32 = 2.0;
#[derive(Debug, PartialEq)]
pub enum Niceness {
    Nice(u32),
    Naughty,
}
pub struct Kid {
    pub name: String,
    pub niceness: Niceness,
}
impl Kid {
    pub fn parse_row(csv_row: &str) -> Result<Kid, &'static str> {
        // 🎁 Transform the CSV row into a Kid struct for Santa's list!
        // 🎅 Expected CSV: "Name,GoodDeeds,BadDeeds"
        //    Example: "Alice,3,1" -> name: "Alice", good_deeds: 3, bad_deeds: 1
        // 🎁 Your code here! 🎁
        let mut fields = csv_row.split(',');
        let name = fields.next().ok_or("Missing field")?.to_string();
        let good_deeds = fields.next().ok_or("Missing field")?.parse::<u32>().map_err(|_| "Invalid good deeds")?;
        let bad_deeds = fields.next().ok_or("Missing field")?.parse::<u32>().map_err(|_| "Invalid bad deeds")?;
        Ok(Self::new(name, good_deeds, bad_deeds))
    }
    pub fn new(name: String, good_deeds: u32, bad_deeds: u32) -> Self {
        let niceness = if Self::is_nice(good_deeds, bad_deeds) {
            Niceness::Nice(good_deeds)
        } else {
            Niceness::Naughty
        };
        Self { name, niceness }
    }
    pub fn is_nice(good_deeds: u32, bad_deeds: u32) -> bool {
        if good_deeds == 0 && bad_deeds == 0 {
            return false;
        }
        let good_deeds = good_deeds as f32 * GOOD_WEIGHT;
        let bad_deeds = bad_deeds as f32 * BAD_WEIGHT;
        let ratio = good_deeds / (good_deeds + bad_deeds);
        ratio >= 0.75
    }
}

syberianbull

10 days ago

4.63ms

90.44kb

pub const GOOD_WEIGHT: f32 = 1.0;
pub const BAD_WEIGHT: f32 = 2.0;
#[derive(Debug, PartialEq)]
pub enum Niceness {
    Nice(u32),
    Naughty,
}
pub struct Kid {
    pub name: String,
    pub niceness: Niceness,
}
impl Kid {
    pub fn parse_row(csv_row: &str) -> Result<Kid, &'static str> {
        // 🎁 Transform the CSV row into a Kid struct for Santa's list!
        // 🎅 Expected CSV: "Name,GoodDeeds,BadDeeds"
        //    Example: "Alice,3,1" -> name: "Alice", good_deeds: 3, bad_deeds: 1
        // 🎁 Your code here! 🎁
        let parts: Vec<&str> = csv_row.split(",").collect();
        if parts.len() != 3 {
            return Err("Invalid row.")
        }
        let name = parts[0].to_string();
        let good_deeds = parts[1].parse::<u32>().map_err(|_|"Could not parse second argument to good deeds")?;
        let bad_deeds = parts[2].parse::<u32>().map_err(|_|"Could not parse third argument to bad deeds")?;
        Ok(Self::new(name, good_deeds, bad_deeds))
    }
    pub fn new(name: String, good_deeds: u32, bad_deeds: u32) -> Self {
        let niceness = if Self::is_nice(good_deeds, bad_deeds) {
            Niceness::Nice(good_deeds)
        } else {
            Niceness::Naughty
        };
        Self { name, niceness }
    }
    pub fn is_nice(good_deeds: u32, bad_deeds: u32) -> bool {
        if good_deeds == 0 && bad_deeds == 0 {
            return false;
        }
        let good_deeds = good_deeds as f32 * GOOD_WEIGHT;
        let bad_deeds = bad_deeds as f32 * BAD_WEIGHT;
        let ratio = good_deeds / (good_deeds + bad_deeds);
        ratio >= 0.75
    }
}

Camiam144

11 days ago

5.13ms

89.24kb

pub const GOOD_WEIGHT: f32 = 1.0;
pub const BAD_WEIGHT: f32 = 2.0;
#[derive(Debug, PartialEq)]
pub enum Niceness {
    Nice(u32),
    Naughty,
}
pub struct Kid {
    pub name: String,
    pub niceness: Niceness,
}
impl Kid {
    pub fn parse_row(csv_row: &str) -> Result<Kid, &'static str> {
        // 🎁 Transform the CSV row into a Kid struct for Santa's list!
        // 🎅 Expected CSV: "Name,GoodDeeds,BadDeeds"
        //    Example: "Alice,3,1" -> name: "Alice", good_deeds: 3, bad_deeds: 1
        // 🎁 Your code here! 🎁
        let mut fields = csv_row.split(',');
        let name = fields.next().ok_or("Missing field")?.to_string();
        let good_deeds = fields.next().ok_or("Missing field")?.parse::<u32>().map_err(|_| "Invalid good deeds")?;
        let bad_deeds = fields.next().ok_or("Missing field")?.parse::<u32>().map_err(|_| "Invalid bad deeds")?;
        Ok(Self::new(name, good_deeds, bad_deeds))
    }
    pub fn new(name: String, good_deeds: u32, bad_deeds: u32) -> Self {
        let niceness = if Self::is_nice(good_deeds, bad_deeds) {
            Niceness::Nice(good_deeds)
        } else {
            Niceness::Naughty
        };
        Self { name, niceness }
    }
    pub fn is_nice(good_deeds: u32, bad_deeds: u32) -> bool {
        if good_deeds == 0 && bad_deeds == 0 {
            return false;
        }
        let good_deeds = good_deeds as f32 * GOOD_WEIGHT;
        let bad_deeds = bad_deeds as f32 * BAD_WEIGHT;
        let ratio = good_deeds / (good_deeds + bad_deeds);
        ratio >= 0.75
    }
}

Aaron Willis

O-possum

12 days ago

3.98ms

90.44kb

pub const GOOD_WEIGHT: f32 = 1.0;
pub const BAD_WEIGHT: f32 = 2.0;
#[derive(Debug, PartialEq)]
pub enum Niceness {
    Nice(u32),
    Naughty,
}
pub struct Kid {
    pub name: String,
    pub niceness: Niceness,
}
impl Kid {
    pub fn parse_row(csv_row: &str) -> Result<Kid, &'static str> {
        // 🎁 Transform the CSV row into a Kid struct for Santa's list!
        // 🎅 Expected CSV: "Name,GoodDeeds,BadDeeds"
        //    Example: "Alice,3,1" -> name: "Alice", good_deeds: 3, bad_deeds: 1
        // 🎁 Your code here! 🎁
        let parts: Vec<&str> = csv_row.split(",").collect();
        if parts.len() != 3 {
            return Err("Invalid CSV format; expected 3 values separated by commas.")
        }
        let name: String = parts[0].to_string();
        let good_deeds: u32 = parts[1]
            .parse::<u32>()
            .map_err(|_|"Could not parse good deeds as u32")?;
        let bad_deeds: u32 = parts[2]
            .parse::<u32>()
            .map_err(|_|"Could not parse bad deeds as u32")?;
        Ok(Self::new(name, good_deeds, bad_deeds))
    }
    pub fn new(name: String, good_deeds: u32, bad_deeds: u32) -> Self {
        let niceness = if Self::is_nice(good_deeds, bad_deeds) {
            Niceness::Nice(good_deeds)
        } else {
            Niceness::Naughty
        };
        Self { name, niceness }
    }
    pub fn is_nice(good_deeds: u32, bad_deeds: u32) -> bool {
        if good_deeds == 0 && bad_deeds == 0 {
            return false;
        }
        let good_deeds = good_deeds as f32 * GOOD_WEIGHT;
        let bad_deeds = bad_deeds as f32 * BAD_WEIGHT;
        let ratio = good_deeds / (good_deeds + bad_deeds);
        ratio >= 0.75
    }
}

Aaron Willis

O-possum

12 days ago

3.99ms

90.44kb

pub const GOOD_WEIGHT: f32 = 1.0;
pub const BAD_WEIGHT: f32 = 2.0;
#[derive(Debug, PartialEq)]
pub enum Niceness {
    Nice(u32),
    Naughty,
}
pub struct Kid {
    pub name: String,
    pub niceness: Niceness,
}
impl Kid {
    pub fn parse_row(csv_row: &str) -> Result<Kid, &'static str> {
        // 🎁 Transform the CSV row into a Kid struct for Santa's list!
        // 🎅 Expected CSV: "Name,GoodDeeds,BadDeeds"
        //    Example: "Alice,3,1" -> name: "Alice", good_deeds: 3, bad_deeds: 1
        // 🎁 Your code here! 🎁
        let parts: Vec<&str> = csv_row.split(",").collect();
        if parts.len() != 3 {
            return Err("Invalid CSV format; expected 3 values separated by commas.")
        }
        let name: String = String::from(parts[0]);
        let good_deeds: u32 = parts[1]
            .parse::<u32>()
            .map_err(|_|"Could not parse good deeds as u32")?;
        let bad_deeds: u32 = parts[2]
            .parse::<u32>()
            .map_err(|_|"Could not parse bad deeds as u32")?;
        Ok(Self::new(String::from(name), good_deeds, bad_deeds))
    }
    pub fn new(name: String, good_deeds: u32, bad_deeds: u32) -> Self {
        let niceness = if Self::is_nice(good_deeds, bad_deeds) {
            Niceness::Nice(good_deeds)
        } else {
            Niceness::Naughty
        };
        Self { name, niceness }
    }
    pub fn is_nice(good_deeds: u32, bad_deeds: u32) -> bool {
        if good_deeds == 0 && bad_deeds == 0 {
            return false;
        }
        let good_deeds = good_deeds as f32 * GOOD_WEIGHT;
        let bad_deeds = bad_deeds as f32 * BAD_WEIGHT;
        let ratio = good_deeds / (good_deeds + bad_deeds);
        ratio >= 0.75
    }
}

Aaron Willis

O-possum

12 days ago

3.73ms

90.44kb

pub const GOOD_WEIGHT: f32 = 1.0;
pub const BAD_WEIGHT: f32 = 2.0;
#[derive(Debug, PartialEq)]
pub enum Niceness {
    Nice(u32),
    Naughty,
}
pub struct Kid {
    pub name: String,
    pub niceness: Niceness,
}
impl Kid {
    pub fn parse_row(csv_row: &str) -> Result<Kid, &'static str> {
        // 🎁 Transform the CSV row into a Kid struct for Santa's list!
        // 🎅 Expected CSV: "Name,GoodDeeds,BadDeeds"
        //    Example: "Alice,3,1" -> name: "Alice", good_deeds: 3, bad_deeds: 1
        // 🎁 Your code here! 🎁
        let mut parts = csv_row.split(",");
        let name: &str = parts.next()
            .ok_or("Couldn't parse name")?;
        let good_deeds: u32 = parts.next()
            .ok_or("Invalid good deeds")?
            .parse::<u32>()
            .map_err(|_|"Could not parse good deeds as u32")?;
        let bad_deeds: u32 = parts.next()
            .ok_or("Invalid bad deeds")?
            .parse::<u32>()
            .map_err(|_|"Could not parse bad deeds as u32")?;
        Ok(Self::new(String::from(name), good_deeds, bad_deeds))
    }
    pub fn new(name: String, good_deeds: u32, bad_deeds: u32) -> Self {
        let niceness = if Self::is_nice(good_deeds, bad_deeds) {
            Niceness::Nice(good_deeds)
        } else {
            Niceness::Naughty
        };
        Self { name, niceness }
    }
    pub fn is_nice(good_deeds: u32, bad_deeds: u32) -> bool {
        if good_deeds == 0 && bad_deeds == 0 {
            return false;
        }
        let good_deeds = good_deeds as f32 * GOOD_WEIGHT;
        let bad_deeds = bad_deeds as f32 * BAD_WEIGHT;
        let ratio = good_deeds / (good_deeds + bad_deeds);
        ratio >= 0.75
    }
}

Luigi Terrone

LuigiTer

13 days ago

3.87ms

90.44kb

pub const GOOD_WEIGHT: f32 = 1.0;
pub const BAD_WEIGHT: f32 = 2.0;
#[derive(Debug, PartialEq)]
pub enum Niceness {
    Nice(u32),
    Naughty,
}
pub struct Kid {
    pub name: String,
    pub niceness: Niceness,
}
impl Kid {
    pub fn parse_row(csv_row: &str) -> Result<Kid, &'static str> {
        // 🎁 Transform the CSV row into a Kid struct for Santa's list!
        // 🎅 Expected CSV: "Name,GoodDeeds,BadDeeds"
        //    Example: "Alice,3,1" -> name: "Alice", good_deeds: 3, bad_deeds: 1
        // 🎁 Your code here! 🎁
        let vec: Vec<&str> = csv_row.split(',').collect();
        if vec.len() != 3 {
            return Err("Invalid CSV format: expected 3 fields");
        }
        if vec[0].is_empty() || vec[1].is_empty() || vec[2].is_empty() {
            return Err("Empty field found in CSV");
        }
        let name: String = vec[0].to_string();
        let good_deeds: u32 = vec[1].parse()
            .map_err(|_| "Invalid number for good deeds")?;
        let bad_deeds: u32 = vec[2].parse()
            .map_err(|_| "Invalid number for bad deeds")?;
        Ok(Self::new(name, good_deeds, bad_deeds))
    }
    pub fn new(name: String, good_deeds: u32, bad_deeds: u32) -> Self {
        let niceness = if Self::is_nice(good_deeds, bad_deeds) {
            Niceness::Nice(good_deeds)
        } else {
            Niceness::Naughty
        };
        Self { name, niceness }
    }
    pub fn is_nice(good_deeds: u32, bad_deeds: u32) -> bool {
        if good_deeds == 0 && bad_deeds == 0 {
            return false;
        }
        let good_deeds = good_deeds as f32 * GOOD_WEIGHT;
        let bad_deeds = bad_deeds as f32 * BAD_WEIGHT;
        let ratio = good_deeds / (good_deeds + bad_deeds);
        ratio >= 0.75
    }
}

Alan Bowman

alanbowman

13 days ago

4.96ms

89.88kb

pub const GOOD_WEIGHT: f32 = 1.0;
pub const BAD_WEIGHT: f32 = 2.0;
#[derive(Debug, PartialEq)]
pub enum Niceness {
    Nice(u32),
    Naughty,
}
pub struct Kid {
    pub name: String,
    pub niceness: Niceness,
}
impl Kid {
    pub fn parse_row(csv_row: &str) -> Result<Kid, &'static str> {
        // 🎁 Transform the CSV row into a Kid struct for Santa's list!
        // 🎅 Expected CSV: "Name,GoodDeeds,BadDeeds"
        //    Example: "Alice,3,1" -> name: "Alice", good_deeds: 3, bad_deeds: 1
        let mut splits = csv_row.split(",");
        let name_entry = splits.next().ok_or("Missing field")?;
        let good_deeds_entry = splits.next().ok_or("Missing field")?;
        let bad_deeds_entry = splits.next().ok_or("Missing field")?;
        let name = name_entry.to_string();
        let good_deeds = good_deeds_entry.parse::<u32>().map_err(|_| "Unable to parse")?;
        let bad_deeds = bad_deeds_entry.parse::<u32>().map_err(|_| "Unable to parse")?;
        Ok(Self::new(name, good_deeds, bad_deeds))
    }
    pub fn new(name: String, good_deeds: u32, bad_deeds: u32) -> Self {
        let niceness = if Self::is_nice(good_deeds, bad_deeds) {
            Niceness::Nice(good_deeds)
        } else {
            Niceness::Naughty
        };
        Self { name, niceness }
    }
    pub fn is_nice(good_deeds: u32, bad_deeds: u32) -> bool {
        if good_deeds == 0 && bad_deeds == 0 {
            return false;
        }
        let good_deeds = good_deeds as f32 * GOOD_WEIGHT;
        let bad_deeds = bad_deeds as f32 * BAD_WEIGHT;
        let ratio = good_deeds / (good_deeds + bad_deeds);
        ratio >= 0.75
    }
}

Hongzhii

13 days ago

3.76ms

89.24kb

pub const GOOD_WEIGHT: f32 = 1.0;
pub const BAD_WEIGHT: f32 = 2.0;
#[derive(Debug, PartialEq)]
pub enum Niceness {
    Nice(u32),
    Naughty,
}
pub struct Kid {
    pub name: String,
    pub niceness: Niceness,
}
impl Kid {
    pub fn parse_row(csv_row: &str) -> Result<Kid, &'static str> {
        // 🎁 Transform the CSV row into a Kid struct for Santa's list!
        // 🎅 Expected CSV: "Name,GoodDeeds,BadDeeds"
        //    Example: "Alice,3,1" -> name: "Alice", good_deeds: 3, bad_deeds: 1
        // 🎁 Your code here! 🎁
        let mut parts = csv_row.split(",");
        let name: String = parts.next().ok_or("Missing field")?.to_string();
        let good_deeds: u32 = parts.next().ok_or("Missing field")?.parse().map_err(|_|"Invalid good deeds")?;
        let bad_deeds: u32 = parts.next().ok_or("Missing field")?.parse().map_err(|_|"Invalid bad deeds")?;
        Ok(Self::new(name, good_deeds, bad_deeds))
    }
    pub fn new(name: String, good_deeds: u32, bad_deeds: u32) -> Self {
        let niceness = if Self::is_nice(good_deeds, bad_deeds) {
            Niceness::Nice(good_deeds)
        } else {
            Niceness::Naughty
        };
        Self { name, niceness }
    }
    pub fn is_nice(good_deeds: u32, bad_deeds: u32) -> bool {
        if good_deeds == 0 && bad_deeds == 0 {
            return false;
        }
        let good_deeds = good_deeds as f32 * GOOD_WEIGHT;
        let bad_deeds = bad_deeds as f32 * BAD_WEIGHT;
        let ratio = good_deeds / (good_deeds + bad_deeds);
        ratio >= 0.75
    }
}

xian ma

xanvcs

14 days ago

3.76ms

90.44kb

pub const GOOD_WEIGHT: f32 = 1.0;
pub const BAD_WEIGHT: f32 = 2.0;
#[derive(Debug, PartialEq)]
pub enum Niceness {
    Nice(u32),
    Naughty,
}
pub struct Kid {
    pub name: String,
    pub niceness: Niceness,
}
impl Kid {
    pub fn parse_row(csv_row: &str) -> Result<Kid, &'static str> {
        // 🎁 Transform the CSV row into a Kid struct for Santa's list!
        // 🎅 Expected CSV: "Name,GoodDeeds,BadDeeds"
        //    Example: "Alice,3,1" -> name: "Alice", good_deeds: 3, bad_deeds: 1
        // 🎁 Your code here! 🎁
        let parts: Vec<&str> = csv_row.split(",").collect();
        if parts.len() != 3 {
            return Err("invalid length")
        };
        let name = parts[0].to_string();
        let good_deeds = parts[1].parse().map_err(|_| "good_deeds can't be parsed")?;
        let bad_deeds = parts[2].parse().map_err(|_| "bad_deeds can't be parsed")?;
        Ok(Self::new(name, good_deeds, bad_deeds))
    }
    pub fn new(name: String, good_deeds: u32, bad_deeds: u32) -> Self {
        let niceness = if Self::is_nice(good_deeds, bad_deeds) {
            Niceness::Nice(good_deeds)
        } else {
            Niceness::Naughty
        };
        Self { name, niceness }
    }
    pub fn is_nice(good_deeds: u32, bad_deeds: u32) -> bool {
        if good_deeds == 0 && bad_deeds == 0 {
            return false;
        }
        let good_deeds = good_deeds as f32 * GOOD_WEIGHT;
        let bad_deeds = bad_deeds as f32 * BAD_WEIGHT;
        let ratio = good_deeds / (good_deeds + bad_deeds);
        ratio >= 0.75
    }
}

Andrés Pérez

cperez08

16 days ago

3.86ms

89.29kb

pub const GOOD_WEIGHT: f32 = 1.0;
pub const BAD_WEIGHT: f32 = 2.0;
#[derive(Debug, PartialEq)]
pub enum Niceness {
    Nice(u32),
    Naughty,
}
pub struct Kid {
    pub name: String,
    pub niceness: Niceness,
}
impl Kid {
    pub fn parse_row(csv_row: &str) -> Result<Kid, &'static str> {
        // 🎁 Transform the CSV row into a Kid struct for Santa's list!
        // 🎅 Expected CSV: "Name,GoodDeeds,BadDeeds"
        //    Example: "Alice,3,1" -> name: "Alice", good_deeds: 3, bad_deeds: 1
        let parts: Vec<&str> = csv_row.split(",").collect();
        if parts.len() != 3 {
            return Err("invalid row");
        }
        let name = parts[0];
        let good_deeds: u32 = match parts[1].parse() {
            Ok(n) => n,
            Err(_e) => return Err("invalid good deeds"),
        };
        let bad_deeds: u32 = match parts[2].parse() {
            Ok(n) => n,
            Err(_e) => return Err("invalid bad deeds"),
        };
        Ok(Self::new(name.to_owned(), good_deeds, bad_deeds))
    }
    pub fn new(name: String, good_deeds: u32, bad_deeds: u32) -> Self {
        let niceness = if Self::is_nice(good_deeds, bad_deeds) {
            Niceness::Nice(good_deeds)
        } else {
            Niceness::Naughty
        };
        Self { name, niceness }
    }
    pub fn is_nice(good_deeds: u32, bad_deeds: u32) -> bool {
        if good_deeds == 0 && bad_deeds == 0 {
            return false;
        }
        let good_deeds = good_deeds as f32 * GOOD_WEIGHT;
        let bad_deeds = bad_deeds as f32 * BAD_WEIGHT;
        let ratio = good_deeds / (good_deeds + bad_deeds);
        ratio >= 0.75
    }
}

13Noodles

16 days ago

3.80ms

89.24kb

pub const GOOD_WEIGHT: f32 = 1.0;
pub const BAD_WEIGHT: f32 = 2.0;
#[derive(Debug, PartialEq)]
pub enum Niceness {
    Nice(u32),
    Naughty,
}
pub struct Kid {
    pub name: String,
    pub niceness: Niceness,
}
impl Kid {
    pub fn parse_row(csv_row: &str) -> Result<Kid, &'static str> {
        // 🎁 Transform the CSV row into a Kid struct for Santa's list!
        // 🎅 Expected CSV: "Name,GoodDeeds,BadDeeds"
        //    Example: "Alice,3,1" -> name: "Alice", good_deeds: 3, bad_deeds: 1
        // 🎁 Your code here! 🎁
        let mut parts = csv_row.split(',');
        let name = match parts.next() {
            Some(v) => v.to_string(),
            None => return Err("missing name column"),
        };
        let good_deeds: u32 = match parts.next() {
            Some(v_str) => match v_str.parse() {
                Err(_) => return Err("invlid good_deeds type"),
                Ok(v) => v,
            },
            None => return Err("missing good_deeds column"),
        };
        let bad_deeds: u32 = match parts.next() {
            Some(v_str) => match v_str.parse() {
                Err(_) => return Err("invlid bad_deeds type"),
                Ok(v) => v,
            },
            None => return Err("missing bad_deeds column"),
        };
        Ok(Self::new(name, good_deeds, bad_deeds))
    }
    pub fn new(name: String, good_deeds: u32, bad_deeds: u32) -> Self {
        let niceness = if Self::is_nice(good_deeds, bad_deeds) {
            Niceness::Nice(good_deeds)
        } else {
            Niceness::Naughty
        };
        Self { name, niceness }
    }
    pub fn is_nice(good_deeds: u32, bad_deeds: u32) -> bool {
        if good_deeds == 0 && bad_deeds == 0 {
            return false;
        }
        let good_deeds = good_deeds as f32 * GOOD_WEIGHT;
        let bad_deeds = bad_deeds as f32 * BAD_WEIGHT;
        let ratio = good_deeds / (good_deeds + bad_deeds);
        ratio >= 0.75
    }
}
pub fn main() {}

Sarthak Mishra

sithtsar

18 days ago

4.08ms

89.30kb

pub const GOOD_WEIGHT: f32 = 1.0;
pub const BAD_WEIGHT: f32 = 2.0;
#[derive(Debug, PartialEq)]
pub enum Niceness {
    Nice(u32),
    Naughty,
}
pub struct Kid {
    pub name: String,
    pub niceness: Niceness,
}
impl Kid {
    pub fn parse_row(csv_row: &str) -> Result<Kid, &'static str> {
        // 🎁 Transform the CSV row into a Kid struct for Santa's list!
        // 🎅 Expected CSV: "Name,GoodDeeds,BadDeeds"
        //    Example: "Alice,3,1" -> name: "Alice", good_deeds: 3, bad_deeds: 1
        // 🎁 Your code here! 🎁
        
       
        let v: Vec<&str> = csv_row.split(',').collect();
        match v.as_slice() {
            [name, good_str, bad_str] => {
                let good_deeds: u32 = good_str.parse().map_err(|_| "Invalid good_deeds")?;
                let bad_deeds: u32 = bad_str.parse().map_err(|_| "Invalid bad_deeds")?;
                Ok(Self::new(name.to_string(), good_deeds, bad_deeds))
            }
            _ => Err("Invalid CSV row format. Expected 3 fields."),
        }
        
    }
    pub fn new(name: String, good_deeds: u32, bad_deeds: u32) -> Self {
        let niceness = if Self::is_nice(good_deeds, bad_deeds) {
            Niceness::Nice(good_deeds)
        } else {
            Niceness::Naughty
        };
        Self { name, niceness }
    }
    pub fn is_nice(good_deeds: u32, bad_deeds: u32) -> bool {
        if good_deeds == 0 && bad_deeds == 0 {
            return false;
        }
        let good_deeds = good_deeds as f32 * GOOD_WEIGHT;
        let bad_deeds = bad_deeds as f32 * BAD_WEIGHT;
        let ratio = good_deeds / (good_deeds + bad_deeds);
        ratio >= 0.75
    }
}

Anthony

Ashaman00

18 days ago

3.51ms

89.29kb

pub const GOOD_WEIGHT: f32 = 1.0;
pub const BAD_WEIGHT: f32 = 2.0;
#[derive(Debug, PartialEq)]
pub enum Niceness {
    Nice(u32),
    Naughty,
}
pub struct Kid {
    pub name: String,
    pub niceness: Niceness,
}
impl Kid {
    pub fn parse_row(csv_row: &str) -> Result<Kid, &'static str> {
        // 🎁 Transform the CSV row into a Kid struct for Santa's list!
        // 🎅 Expected CSV: "Name,GoodDeeds,BadDeeds"
        //    Example: "Alice,3,1" -> name: "Alice", good_deeds: 3, bad_deeds: 1
        // 🎁 Your code here! 🎁
        let [name, good, bad] = csv_row.split(",").collect::<Vec<&str>>().try_into().map_err(|_| "No 3 elements")?;
        let good_deeds = good.parse::<u32>().map_err(|_| "Not an integer")?;
        let bad_deeds = bad.parse::<u32>().map_err(|_| "Not an integer")?;
        Ok(Self::new(name.to_string(), good_deeds, bad_deeds))
    }
    pub fn new(name: String, good_deeds: u32, bad_deeds: u32) -> Self {
        let niceness = if Self::is_nice(good_deeds, bad_deeds) {
            Niceness::Nice(good_deeds)
        } else {
            Niceness::Naughty
        };
        Self { name, niceness }
    }
    pub fn is_nice(good_deeds: u32, bad_deeds: u32) -> bool {
        if good_deeds == 0 && bad_deeds == 0 {
            return false;
        }
        let good_deeds = good_deeds as f32 * GOOD_WEIGHT;
        let bad_deeds = bad_deeds as f32 * BAD_WEIGHT;
        let ratio = good_deeds / (good_deeds + bad_deeds);
        ratio >= 0.75
    }
}

elFuchso

19 days ago

8.35ms

89.24kb

pub const GOOD_WEIGHT: f32 = 1.0;
pub const BAD_WEIGHT: f32 = 2.0;
#[derive(Debug, PartialEq)]
pub enum Niceness {
    Nice(u32),
    Naughty,
}
pub struct Kid {
    pub name: String,
    pub niceness: Niceness,
}
impl Kid {
    pub fn parse_row(csv_row: &str) -> Result<Kid, &'static str> {
        // 🎁 Transform the CSV row into a Kid struct for Santa's list!
        // 🎅 Expected CSV: "Name,GoodDeeds,BadDeeds"
        //    Example: "Alice,3,1" -> name: "Alice", good_deeds: 3, bad_deeds: 1
        // 🎁 Your code here! 🎁
        let mut fields = csv_row.split(',');
        let name = fields.next().ok_or("Missing field")?.to_string();
        let good_deeds = fields.next().ok_or("Missing field")?.parse::<u32>().map_err(|_|"Invalid good deeds")?;
        let bad_deeds = fields.next().ok_or("Missing field")?.parse::<u32>().map_err(|_|"Invalid bad deeds")?;
        
        Ok(Self::new(name, good_deeds, bad_deeds))
    }
    pub fn new(name: String, good_deeds: u32, bad_deeds: u32) -> Self {
        let niceness = if Self::is_nice(good_deeds, bad_deeds) {
            Niceness::Nice(good_deeds)
        } else {
            Niceness::Naughty
        };
        Self { name, niceness }
    }
    pub fn is_nice(good_deeds: u32, bad_deeds: u32) -> bool {
        if good_deeds == 0 && bad_deeds == 0 {
            return false;
        }
        let good_deeds = good_deeds as f32 * GOOD_WEIGHT;
        let bad_deeds = bad_deeds as f32 * BAD_WEIGHT;
        let ratio = good_deeds / (good_deeds + bad_deeds);
        ratio >= 0.75
    }
}

hoslo

19 days ago

3.99ms

89.24kb

pub const GOOD_WEIGHT: f32 = 1.0;
pub const BAD_WEIGHT: f32 = 2.0;
#[derive(Debug, PartialEq)]
pub enum Niceness {
    Nice(u32),
    Naughty,
}
pub struct Kid {
    pub name: String,
    pub niceness: Niceness,
}
impl Kid {
    pub fn parse_row(csv_row: &str) -> Result<Kid, &'static str> {
        // 🎁 Transform the CSV row into a Kid struct for Santa's list!
        // 🎅 Expected CSV: "Name,GoodDeeds,BadDeeds"
        //    Example: "Alice,3,1" -> name: "Alice", good_deeds: 3, bad_deeds: 1
        // 🎁 Your code here! 🎁
        let mut csv_row = csv_row.split(',');
        let name = csv_row.next().ok_or("no name")?.to_string();
        let good_deeds = csv_row.next().ok_or("no good deeds")?.parse::<u32>().map_err(|_| "no good deeds")?;
        let bad_deeds = csv_row.next().ok_or("no bad deeds")?.parse::<u32>().map_err(|_| "no bad deeds")?;
        Ok(Self::new(name, good_deeds, bad_deeds))
    }
    pub fn new(name: String, good_deeds: u32, bad_deeds: u32) -> Self {
        let niceness = if Self::is_nice(good_deeds, bad_deeds) {
            Niceness::Nice(good_deeds)
        } else {
            Niceness::Naughty
        };
        Self { name, niceness }
    }
    pub fn is_nice(good_deeds: u32, bad_deeds: u32) -> bool {
        if good_deeds == 0 && bad_deeds == 0 {
            return false;
        }
        let good_deeds = good_deeds as f32 * GOOD_WEIGHT;
        let bad_deeds = bad_deeds as f32 * BAD_WEIGHT;
        let ratio = good_deeds / (good_deeds + bad_deeds);
        ratio >= 0.75
    }
}

elFuchso

20 days ago

4.80ms

89.24kb

pub const GOOD_WEIGHT: f32 = 1.0;
pub const BAD_WEIGHT: f32 = 2.0;
#[derive(Debug, PartialEq)]
pub enum Niceness {
    Nice(u32),
    Naughty,
}
pub struct Kid {
    pub name: String,
    pub niceness: Niceness,
}
impl Kid {
    pub fn parse_row(csv_row: &str) -> Result<Kid, &'static str> {
        // 🎁 Transform the CSV row into a Kid struct for Santa's list!
        // 🎅 Expected CSV: "Name,GoodDeeds,BadDeeds"
        //    Example: "Alice,3,1" -> name: "Alice", good_deeds: 3, bad_deeds: 1
        // 🎁 Your code here! 🎁
        let mut fields = csv_row.split(',');
        let name = fields.next().ok_or("Missing field")?.to_string();
        let good_deeds = fields.next().ok_or("Missing field")?.parse::<u32>().map_err(|_|"Invalid good deeds")?;
        let bad_deeds = fields.next().ok_or("Missing field")?.parse::<u32>().map_err(|_|"Invalid bad deeds")?;
        
        Ok(Self::new(name, good_deeds, bad_deeds))
    }
    pub fn new(name: String, good_deeds: u32, bad_deeds: u32) -> Self {
        let niceness = if Self::is_nice(good_deeds, bad_deeds) {
            Niceness::Nice(good_deeds)
        } else {
            Niceness::Naughty
        };
        Self { name, niceness }
    }
    pub fn is_nice(good_deeds: u32, bad_deeds: u32) -> bool {
        if good_deeds == 0 && bad_deeds == 0 {
            return false;
        }
        let good_deeds = good_deeds as f32 * GOOD_WEIGHT;
        let bad_deeds = bad_deeds as f32 * BAD_WEIGHT;
        let ratio = good_deeds / (good_deeds + bad_deeds);
        ratio >= 0.75
    }
}

Regulus-Sun

20 days ago

3.85ms

90.44kb

pub const GOOD_WEIGHT: f32 = 1.0;
pub const BAD_WEIGHT: f32 = 2.0;
#[derive(Debug, PartialEq)]
pub enum Niceness {
    Nice(u32),
    Naughty,
}
pub struct Kid {
    pub name: String,
    pub niceness: Niceness,
}
impl Kid {
    pub fn parse_row(csv_row: &str) -> Result<Kid, &'static str> {
        
        let csv: Vec<&str> = csv_row.split(',').collect();
        if csv.len() != 3 {
            return Err("Invalid input")
        };
        let name = csv[0].to_string();
        let good_deeds: u32 = match csv[1].parse() {
            Ok(num) => num,
            Err(_) => return Err("Not a number")
        };
        let bad_deeds: u32 = match csv[2].parse() {
            Ok(num) => num,
            Err(_) => return Err("Not a number")
        };
        Ok(Self::new(name, good_deeds, bad_deeds))
    }
    pub fn new(name: String, good_deeds: u32, bad_deeds: u32) -> Self {
        let niceness = if Self::is_nice(good_deeds, bad_deeds) {
            Niceness::Nice(good_deeds)
        } else {
            Niceness::Naughty
        };
        Self { name, niceness }
    }
    pub fn is_nice(good_deeds: u32, bad_deeds: u32) -> bool {
        if good_deeds == 0 && bad_deeds == 0 {
            return false;
        }
        let good_deeds = good_deeds as f32 * GOOD_WEIGHT;
        let bad_deeds = bad_deeds as f32 * BAD_WEIGHT;
        let ratio = good_deeds / (good_deeds + bad_deeds);
        ratio >= 0.75
    }
}

Neon-Panda

20 days ago

3.90ms

90.44kb

pub const GOOD_WEIGHT: f32 = 1.0;
pub const BAD_WEIGHT: f32 = 2.0;
#[derive(Debug, PartialEq)]
pub enum Niceness {
    Nice(u32),
    Naughty,
}
pub struct Kid {
    pub name: String,
    pub niceness: Niceness,
}
impl Kid {
    pub fn parse_row(csv_row: &str) -> Result<Kid, &'static str> {
        // 🎁 Transform the CSV row into a Kid struct for Santa's list!
        // 🎅 Expected CSV: "Name,GoodDeeds,BadDeeds"
        //    Example: "Alice,3,1" -> name: "Alice", good_deeds: 3, bad_deeds: 1
        // 🎁 Your code here! 🎁
        let csv: Vec<&str> = csv_row.split(",").collect();
        if csv.len() != 3 {
            return Err("Three columns necessery: name, good_deeds, bad_deeds");
        };
        let name = String::from(csv[0]);
        let good_deeds = match csv[1].parse() {
            Ok(number) => number,
            Err(_) => return Err("Good deeds must be a number"),
        };
        let bad_deeds = match csv[2].parse() {
            Ok(number) => number,
            Err(_) => return Err("Bad deeds must be a number"),
        };
        Ok(Self::new(name, good_deeds, bad_deeds))
    }
    pub fn new(name: String, good_deeds: u32, bad_deeds: u32) -> Self {
        let niceness = if Self::is_nice(good_deeds, bad_deeds) {
            Niceness::Nice(good_deeds)
        } else {
            Niceness::Naughty
        };
        Self { name, niceness }
    }
    pub fn is_nice(good_deeds: u32, bad_deeds: u32) -> bool {
        if good_deeds == 0 && bad_deeds == 0 {
            return false;
        }
        let good_deeds = good_deeds as f32 * GOOD_WEIGHT;
        let bad_deeds = bad_deeds as f32 * BAD_WEIGHT;
        let ratio = good_deeds / (good_deeds + bad_deeds);
        ratio >= 0.75
    }
}

zeitnut

21 days ago

4.63ms

90.44kb

pub const GOOD_WEIGHT: f32 = 1.0;
pub const BAD_WEIGHT: f32 = 2.0;
#[derive(Debug, PartialEq)]
pub enum Niceness {
    Nice(u32),
    Naughty,
}
pub struct Kid {
    pub name: String,
    pub niceness: Niceness,
}
impl Kid {
    pub fn parse_row(csv_row: &str) -> Result<Kid, &'static str> {
        // 🎁 Transform the CSV row into a Kid struct for Santa's list!
        // 🎅 Expected CSV: "Name,GoodDeeds,BadDeeds"
        //    Example: "Alice,3,1" -> name: "Alice", good_deeds: 3, bad_deeds: 1
        let fields: Vec<_> = csv_row.split(',').collect();
        if fields.len() != 3 {
            return Err("Missing columns");
        } else if fields.contains(&"") {
            return Err("Empty columns");
        } else {
            let name = fields[0].to_string();
            let good_deeds: u32 = match fields[1].parse() {
                Ok(num) => num,
                Err(_) => return Err("Good deeds not unsigned integer")
            };
            let bad_deeds: u32 = match fields[2].parse() {
                Ok(num) => num,
                Err(_) => return Err("Bad deeds not unsigned integer")
            };
            Ok(Self::new(name, good_deeds, bad_deeds))
        }
    }
    pub fn new(name: String, good_deeds: u32, bad_deeds: u32) -> Self {
        let niceness = if Self::is_nice(good_deeds, bad_deeds) {
            Niceness::Nice(good_deeds)
        } else {
            Niceness::Naughty
        };
        Self { name, niceness }
    }
    pub fn is_nice(good_deeds: u32, bad_deeds: u32) -> bool {
        if good_deeds == 0 && bad_deeds == 0 {
            return false;
        }
        let good_deeds = good_deeds as f32 * GOOD_WEIGHT;
        let bad_deeds = bad_deeds as f32 * BAD_WEIGHT;
        let ratio = good_deeds / (good_deeds + bad_deeds);
        ratio >= 0.75
    }
}

Adrian

GiantDole

21 days ago

4.64ms

89.47kb

pub const GOOD_WEIGHT: f32 = 1.0;
pub const BAD_WEIGHT: f32 = 2.0;
#[derive(Debug, PartialEq)]
pub enum Niceness {
    Nice(u32),
    Naughty,
}
pub struct Kid {
    pub name: String,
    pub niceness: Niceness,
}
impl Kid {
    pub fn parse_row(csv_row: &str) -> Result<Kid, &'static str> {
        // 🎁 Transform the CSV row into a Kid struct for Santa's list!
        // 🎅 Expected CSV: "Name,GoodDeeds,BadDeeds"
        //    Example: "Alice,3,1" -> name: "Alice", good_deeds: 3, bad_deeds: 1
        // 🎁 Your code here! 🎁
        println!("{}", csv_row);
        let parts : Vec<&str> = csv_row.split(',').collect();
        // THIS IS THE LINE TO CHANGE: Replace assert! with an if condition that returns Err
        if parts.len() != 3 {
            return Err("invalid input"); // Or a more specific error message like "Invalid CSV format: Expected 3 parts"
        }
        let good_deeds: u32 = match parts[1].parse::<u32>() {
            Ok(num) => num,
            Err(_) => return Err("Invalid format for GoodDeeds: Not a valid number"),
        };
        let bad_deeds: u32 = match parts[2].parse::<u32>() {
            Ok(num) => num,
            Err(_) => return Err("Invalid format for BadDeeds: Not a valid number"),
        };
        Ok(Self::new(String::from(parts[0]), good_deeds, bad_deeds))
    }
    pub fn new(name: String, good_deeds: u32, bad_deeds: u32) -> Self {
        let niceness = if Self::is_nice(good_deeds, bad_deeds) {
            Niceness::Nice(good_deeds)
        } else {
            Niceness::Naughty
        };
        Self { name, niceness }
    }
    pub fn is_nice(good_deeds: u32, bad_deeds: u32) -> bool {
        if good_deeds == 0 && bad_deeds == 0 {
            return false;
        }
        let good_deeds = good_deeds as f32 * GOOD_WEIGHT;
        let bad_deeds = bad_deeds as f32 * BAD_WEIGHT;
        let ratio = good_deeds / (good_deeds + bad_deeds);
        ratio >= 0.75
    }
}

DFC-Siege

23 days ago

4.01ms

89.24kb

pub const GOOD_WEIGHT: f32 = 1.0;
pub const BAD_WEIGHT: f32 = 2.0;
#[derive(Debug, PartialEq)]
pub enum Niceness {
    Nice(u32),
    Naughty,
}
pub struct Kid {
    pub name: String,
    pub niceness: Niceness,
}
impl Kid {
    pub fn parse_row(csv_row: &str) -> Result<Kid, &'static str> {
        // 🎁 Transform the CSV row into a Kid struct for Santa's list!
        // 🎅 Expected CSV: "Name,GoodDeeds,BadDeeds"
        //    Example: "Alice,3,1" -> name: "Alice", good_deeds: 3, bad_deeds: 1
        // 🎁 Your code here! 🎁
        let mut split_string = csv_row.split(",");
        let name = split_string.next().ok_or("Missing field")?.to_string();
        let good_deeds: u32 = split_string
            .next()
            .ok_or("Missing field")?
            .parse()
            .map_err(|_| "Invalid good deeds")?;
        let bad_deeds: u32 = split_string
            .next()
            .ok_or("Missing field")?
            .parse()
            .map_err(|_| "Invalid bad deeds")?;
        Ok(Self::new(name, good_deeds, bad_deeds))
    }
    pub fn new(name: String, good_deeds: u32, bad_deeds: u32) -> Self {
        let niceness = if Self::is_nice(good_deeds, bad_deeds) {
            Niceness::Nice(good_deeds)
        } else {
            Niceness::Naughty
        };
        Self { name, niceness }
    }
    pub fn is_nice(good_deeds: u32, bad_deeds: u32) -> bool {
        if good_deeds == 0 && bad_deeds == 0 {
            return false;
        }
        let good_deeds = good_deeds as f32 * GOOD_WEIGHT;
        let bad_deeds = bad_deeds as f32 * BAD_WEIGHT;
        let ratio = good_deeds / (good_deeds + bad_deeds);
        ratio >= 0.75
    }
}

yuiidev

23 days ago

4.45ms

89.24kb

pub const GOOD_WEIGHT: f32 = 1.0;
pub const BAD_WEIGHT: f32 = 2.0;
#[derive(Debug, PartialEq)]
pub enum Niceness {
    Nice(u32),
    Naughty,
}
pub struct Kid {
    pub name: String,
    pub niceness: Niceness,
}
impl Kid {
    pub fn parse_row(csv_row: &str) -> Result<Kid, &'static str> {
        // 🎁 Transform the CSV row into a Kid struct for Santa's list!
        // 🎅 Expected CSV: "Name,GoodDeeds,BadDeeds"
        //    Example: "Alice,3,1" -> name: "Alice", good_deeds: 3, bad_deeds: 1
        // 🎁 Your code here! 🎁
        let mut items = csv_row.split(",");
        Ok(Self::new(
            items.next().ok_or("Expecting name")?.to_string(),
            items.next().ok_or("Missing good deeds")?.parse().map_err(|_| "Invalid good deeds")?,
            items.next().ok_or("Missing bad deeds")?.parse().map_err(|_| "Invalid bad deeds")?
        ))
    }
    pub fn new(name: String, good_deeds: u32, bad_deeds: u32) -> Self {
        let niceness = if Self::is_nice(good_deeds, bad_deeds) {
            Niceness::Nice(good_deeds)
        } else {
            Niceness::Naughty
        };
        Self { name, niceness }
    }
    pub fn is_nice(good_deeds: u32, bad_deeds: u32) -> bool {
        if good_deeds == 0 && bad_deeds == 0 {
            return false;
        }
        let good_deeds = good_deeds as f32 * GOOD_WEIGHT;
        let bad_deeds = bad_deeds as f32 * BAD_WEIGHT;
        let ratio = good_deeds / (good_deeds + bad_deeds);
        ratio >= 0.75
    }
}

NataliaBromyrska

24 days ago

4.37ms

90.31kb

pub const GOOD_WEIGHT: f32 = 1.0;
pub const BAD_WEIGHT: f32 = 2.0;
#[derive(Debug, PartialEq)]
pub enum Niceness {
    Nice(u32),
    Naughty,
}
pub struct Kid {
    pub name: String,
    pub niceness: Niceness,
}
impl Kid {
      pub fn parse_row(csv_row: &str) -> Result<Kid, &'static str> {
        // 🎁 Transform the CSV row into a Kid struct for Santa's list!
        // 🎅 Expected CSV: "Name,GoodDeeds,BadDeeds"
        //    Example: "Alice,3,1" -> name: "Alice", good_deeds: 3, bad_deeds: 1
        let parts = csv_row.split(',').collect::<Vec<_>>();
        if parts.len() == 3 {
            let (name, good_deeds, bad_deeds) = (
                parts[0].into(),
                parts[1].parse().map_err(|_| "Invalid data")?,
                parts[2].parse().map_err(|_| "Invalid data")?,
            );
            Ok(Self::new(name, good_deeds, bad_deeds))
        } else {
            return Err("invalid input");
        }
    }
    pub fn new(name: String, good_deeds: u32, bad_deeds: u32) -> Self {
        let niceness = if Self::is_nice(good_deeds, bad_deeds) {
            Niceness::Nice(good_deeds)
        } else {
            Niceness::Naughty
        };
        Self { name, niceness }
    }
    pub fn is_nice(good_deeds: u32, bad_deeds: u32) -> bool {
        if good_deeds == 0 && bad_deeds == 0 {
            return false;
        }
        let good_deeds = good_deeds as f32 * GOOD_WEIGHT;
        let bad_deeds = bad_deeds as f32 * BAD_WEIGHT;
        let ratio = good_deeds / (good_deeds + bad_deeds);
        ratio >= 0.75
    }
}

charles lohest

cnikov

a month ago

3.63ms

89.24kb

pub const GOOD_WEIGHT: f32 = 1.0;
pub const BAD_WEIGHT: f32 = 2.0;
#[derive(Debug, PartialEq)]
pub enum Niceness {
    Nice(u32),
    Naughty,
}
pub struct Kid {
    pub name: String,
    pub niceness: Niceness,
}
impl Kid {
    pub fn parse_row(csv_row: &str) -> Result<Kid, &'static str> {
        // 🎁 Transform the CSV row into a Kid struct for Santa's list!
        // 🎅 Expected CSV: "Name,GoodDeeds,BadDeeds"
        //    Example: "Alice,3,1" -> name: "Alice", good_deeds: 3, bad_deeds: 1
        // 🎁 Your code here! 🎁
        let mut fields = csv_row.split(',');
        let name = fields.next().ok_or("Missing name")?.to_string();
        let good_deeds = fields.next().ok_or("Missing good deeds")?.parse().map_err(|_| "Invalid good deeds")?;
        let bad_deeds = fields.next().ok_or("Missing bad deeds")?.parse().map_err(|_| "Invalid bad deeds")?;
        Ok(Self::new(name, good_deeds, bad_deeds))
    }
    pub fn new(name: String, good_deeds: u32, bad_deeds: u32) -> Self {
        let niceness = if Self::is_nice(good_deeds, bad_deeds) {
            Niceness::Nice(good_deeds)
        } else {
            Niceness::Naughty
        };
        Self { name, niceness }
    }
    pub fn is_nice(good_deeds: u32, bad_deeds: u32) -> bool {
        if good_deeds == 0 && bad_deeds == 0 {
            return false;
        }
        let good_deeds = good_deeds as f32 * GOOD_WEIGHT;
        let bad_deeds = bad_deeds as f32 * BAD_WEIGHT;
        let ratio = good_deeds / (good_deeds + bad_deeds);
        ratio >= 0.75
    }
}

Holger Knauer

hknauer

a month ago

9.30ms

89.24kb

pub const GOOD_WEIGHT: f32 = 1.0;
pub const BAD_WEIGHT: f32 = 2.0;
#[derive(Debug, PartialEq)]
pub enum Niceness {
    Nice(u32),
    Naughty,
}
pub struct Kid {
    pub name: String,
    pub niceness: Niceness,
}
impl Kid {
    pub fn parse_row(csv_row: &str) -> Result<Kid, &'static str> {
        // 🎁 Transform the CSV row into a Kid struct for Santa's list!
        // 🎅 Expected CSV: "Name,GoodDeeds,BadDeeds"
        //    Example: "Alice,3,1" -> name: "Alice", good_deeds: 3, bad_deeds: 1
        // 🎁 Your code here! 🎁
        let mut fields = csv_row.split(',');
        let name = fields.next().ok_or("Missing name")?.to_string();
        let good_deeds = fields.next().ok_or("Missing good deeds")?.parse().map_err(|_| "Invalid good deeds")?;
        let bad_deeds = fields.next().ok_or("Missing bad deeds")?.parse().map_err(|_| "Invalid bad deeds")?;
        Ok(Self::new(name, good_deeds, bad_deeds))
    }
    pub fn new(name: String, good_deeds: u32, bad_deeds: u32) -> Self {
        let niceness = if Self::is_nice(good_deeds, bad_deeds) {
            Niceness::Nice(good_deeds)
        } else {
            Niceness::Naughty
        };
        Self { name, niceness }
    }
    pub fn is_nice(good_deeds: u32, bad_deeds: u32) -> bool {
        if good_deeds == 0 && bad_deeds == 0 {
            return false;
        }
        let good_deeds = good_deeds as f32 * GOOD_WEIGHT;
        let bad_deeds = bad_deeds as f32 * BAD_WEIGHT;
        let ratio = good_deeds / (good_deeds + bad_deeds);
        ratio >= 0.75
    }
}

diucicd

a month ago

4.53ms

89.30kb

pub const GOOD_WEIGHT: f32 = 1.0;
pub const BAD_WEIGHT: f32 = 2.0;
#[derive(Debug, PartialEq)]
pub enum Niceness {
    Nice(u32),
    Naughty,
}
pub struct Kid {
    pub name: String,
    pub niceness: Niceness,
}
impl Kid {
    pub fn parse_row(csv_row: &str) -> Result<Kid, &'static str> {
        // 🎁 Transform the CSV row into a Kid struct for Santa's list!
        // 🎅 Expected CSV: "Name,GoodDeeds,BadDeeds"
        //    Example: "Alice,3,1" -> name: "Alice", good_deeds: 3, bad_deeds: 1
        // 🎁 Your code here! 🎁
        let chunks: Vec<_> = csv_row.split(",").collect();
        match chunks.as_slice() {
            [name, good_deeds, bad_deeds] => {
                let good_deeds: u32 = good_deeds.parse::<u32>().map_err(|_| "Invalid Good Deed")?;
                let bad_deeds: u32 = bad_deeds.parse::<u32>().map_err(|_| "Invalid Bad Deed")?;
                Ok(Self::new(name.to_string(), good_deeds, bad_deeds))
            }
            _ => Err("input row not valid"),
        }
    
    
    
    }
    pub fn new(name: String, good_deeds: u32, bad_deeds: u32) -> Self {
        let niceness = if Self::is_nice(good_deeds, bad_deeds) {
            Niceness::Nice(good_deeds)
        } else {
            Niceness::Naughty
        };
        Self { name, niceness }
    }
    pub fn is_nice(good_deeds: u32, bad_deeds: u32) -> bool {
        if good_deeds == 0 && bad_deeds == 0 {
            return false;
        }
        let good_deeds = good_deeds as f32 * GOOD_WEIGHT;
        let bad_deeds = bad_deeds as f32 * BAD_WEIGHT;
        let ratio = good_deeds / (good_deeds + bad_deeds);
        ratio >= 0.75
    }
}

Maicon Crespo

maiconcrespo

a month ago

3.83ms

89.24kb

pub const GOOD_WEIGHT: f32 = 1.0;
pub const BAD_WEIGHT: f32 = 2.0;
#[derive(Debug, PartialEq)]
pub enum Niceness {
    Nice(u32),
    Naughty,
}
pub struct Kid {
    pub name: String,
    pub niceness: Niceness,
}
impl Kid {
    pub fn parse_row(csv_row: &str) -> Result<Kid, &'static str> {
        // 🎁 Transform the CSV row into a Kid struct for Santa's list!
        // 🎅 Expected CSV: "Name,GoodDeeds,BadDeeds"
        //    Example: "Alice,3,1" -> name: "Alice", good_deeds: 3, bad_deeds: 1
        // 🎁 Your code here! 🎁
        let mut fields = csv_row.split(',');
        //1 Obtener el nombre
        let name = fields.next()
            .ok_or("Missing field")?
            .to_string();
        //2 Obteenr buenas aciones
        let good_deeds = fields.next()
        .ok_or("Missing field")?
        .parse::<u32>()
        .map_err(|_|"Invalid good deeds")?;
        //3 Obtener Malas acciones
        let bad_deeds = fields.next()
            .ok_or("Missing bad deeds")?
            .parse::<u32>()
            .map_err(|_|"Invalid bad deeds")?;
        Ok(Kid::new(name, good_deeds, bad_deeds))
    }
    pub fn new(name: String, good_deeds: u32, bad_deeds: u32) -> Self {
        let niceness = if Self::is_nice(good_deeds, bad_deeds) {
            Niceness::Nice(good_deeds)
        } else {
            Niceness::Naughty
        };
        Self { name, niceness }
    }
    pub fn is_nice(good_deeds: u32, bad_deeds: u32) -> bool {
        if good_deeds == 0 && bad_deeds == 0 {
            return false;
        }
        let good_deeds = good_deeds as f32 * GOOD_WEIGHT;
        let bad_deeds = bad_deeds as f32 * BAD_WEIGHT;
        let ratio = good_deeds / (good_deeds + bad_deeds);
        ratio >= 0.75
    }
}

Erik Hollembeak

futureperfect

a month ago

4.50ms

89.30kb

pub const GOOD_WEIGHT: f32 = 1.0;
pub const BAD_WEIGHT: f32 = 2.0;
#[derive(Debug, PartialEq)]
pub enum Niceness {
    Nice(u32),
    Naughty,
}
pub struct Kid {
    pub name: String,
    pub niceness: Niceness,
}
impl Kid {
    pub fn parse_row(csv_row: &str) -> Result<Kid, &'static str> {
        let members = csv_row.split(",").collect::<Vec<_>>();
        
        match members.as_slice() {
            [name, good_deeds, bad_deeds] => {
                let good_deeds = good_deeds.parse::<u32>().map_err(|_| "Invalid Good Deeds")?;
                let bad_deeds = bad_deeds.parse::<u32>().map_err(|_| "Invalid Bad Deeds")?;
                Ok(Self::new(name.to_string(), good_deeds, bad_deeds))
            },
            _ => Err("Invalid CSV format")
        }
    }
    pub fn new(name: String, good_deeds: u32, bad_deeds: u32) -> Self {
        let niceness = if Self::is_nice(good_deeds, bad_deeds) {
            Niceness::Nice(good_deeds)
        } else {
            Niceness::Naughty
        };
        Self { name, niceness }
    }
    pub fn is_nice(good_deeds: u32, bad_deeds: u32) -> bool {
        if good_deeds == 0 && bad_deeds == 0 {
            return false;
        }
        let good_deeds = good_deeds as f32 * GOOD_WEIGHT;
        let bad_deeds = bad_deeds as f32 * BAD_WEIGHT;
        let ratio = good_deeds / (good_deeds + bad_deeds);
        ratio >= 0.75
    }
}

Erik Hollembeak

futureperfect

a month ago

8.12ms

90.44kb

pub const GOOD_WEIGHT: f32 = 1.0;
pub const BAD_WEIGHT: f32 = 2.0;
#[derive(Debug, PartialEq)]
pub enum Niceness {
    Nice(u32),
    Naughty,
}
pub struct Kid {
    pub name: String,
    pub niceness: Niceness,
}
impl Kid {
    pub fn parse_row(csv_row: &str) -> Result<Kid, &'static str> {
        let vec : Vec<&str> = csv_row.split(",").collect();
        if vec.len() < 3 {
            return Err("Invalid CSV row");
        }
        let name = vec[0].to_string();
        let good_deeds = match vec[1].parse::<u32>() {
            Ok(n) => n,
            Err(_) => return Err("Problem parsing good_deeds")
        };
        let bad_deeds = match vec[2].parse::<u32>() {
            Ok(n) => n,
            Err(_) => return Err("Problem parsing bad deeds")
        };
        Ok(Self::new(name, good_deeds, bad_deeds))
    }
    pub fn new(name: String, good_deeds: u32, bad_deeds: u32) -> Self {
        let niceness = if Self::is_nice(good_deeds, bad_deeds) {
            Niceness::Nice(good_deeds)
        } else {
            Niceness::Naughty
        };
        Self { name, niceness }
    }
    pub fn is_nice(good_deeds: u32, bad_deeds: u32) -> bool {
        if good_deeds == 0 && bad_deeds == 0 {
            return false;
        }
        let good_deeds = good_deeds as f32 * GOOD_WEIGHT;
        let bad_deeds = bad_deeds as f32 * BAD_WEIGHT;
        let ratio = good_deeds / (good_deeds + bad_deeds);
        ratio >= 0.75
    }
}

winneratwin

a month ago

5.46ms

90.44kb

pub const GOOD_WEIGHT: f32 = 1.0;
pub const BAD_WEIGHT: f32 = 2.0;
#[derive(Debug, PartialEq)]
pub enum Niceness {
    Nice(u32),
    Naughty,
}
pub struct Kid {
    pub name: String,
    pub niceness: Niceness,
}
impl Kid {
    pub fn parse_row(csv_row: &str) -> Result<Kid, &'static str> {
        // 🎁 Transform the CSV row into a Kid struct for Santa's list!
        // 🎅 Expected CSV: "Name,GoodDeeds,BadDeeds"
        //    Example: "Alice,3,1" -> name: "Alice", good_deeds: 3, bad_deeds: 1
        // 🎁 Your code here! 🎁
        let mut csv_row_iter = csv_row.split(",");
        let name: &str = csv_row_iter.next().unwrap();
        let good_deeds: u32 = if let Some(deeds_str) = csv_row_iter.next(){
            match deeds_str.parse::<u32>() {
                Ok(var) => var,
                Err(_e) => return Err("Error in good_deeds") 
            }
        } else {
            return Err("Missing good_deeds")
        };
        let bad_deeds: u32 = if let Some(deeds_str) = csv_row_iter.next(){
            match deeds_str.parse::<u32>() {
                Ok(var) => var,
                Err(_e) => return Err("Error in bad_deeds") 
            }
        } else {
            return Err("Missing good_deeds")
        };
        Ok(Self::new(name.to_string(), good_deeds, bad_deeds))
    }
    pub fn new(name: String, good_deeds: u32, bad_deeds: u32) -> Self {
        let niceness = if Self::is_nice(good_deeds, bad_deeds) {
            Niceness::Nice(good_deeds)
        } else {
            Niceness::Naughty
        };
        Self { name, niceness }
    }
    pub fn is_nice(good_deeds: u32, bad_deeds: u32) -> bool {
        if good_deeds == 0 && bad_deeds == 0 {
            return false;
        }
        let good_deeds = good_deeds as f32 * GOOD_WEIGHT;
        let bad_deeds = bad_deeds as f32 * BAD_WEIGHT;
        let ratio = good_deeds / (good_deeds + bad_deeds);
        ratio >= 0.75
    }
}

illay123

a month ago

5.17ms

89.30kb

pub const GOOD_WEIGHT: f32 = 1.0;
pub const BAD_WEIGHT: f32 = 2.0;
#[derive(Debug, PartialEq)]
pub enum Niceness {
    Nice(u32),
    Naughty,
}
pub struct Kid {
    pub name: String,
    pub niceness: Niceness,
}
impl Kid {
    pub fn parse_row(csv_row: &str) -> Result<Kid, &'static str> {
        // 🎁 Transform the CSV row into a Kid struct for Santa's list!
        // 🎅 Expected CSV: "Name,GoodDeeds,BadDeeds"
        //    Example: "Alice,3,1" -> name: "Alice", good_deeds: 3, bad_deeds: 1
        // 🎁 Your code here! 🎁
        let parts = csv_row.split(',');
        match parts.collect::<Vec<&str>>().as_slice() {
            [name, good_deeds, bad_deeds] => {
                let good_deeds = good_deeds.parse::<u32>().map_err(|_| "Invalid Good Deeds")?;
                let bad_deeds = bad_deeds.parse::<u32>().map_err(|_| "Invalid Bad Deeds")?;
                Ok(Kid::new(name.to_string(), good_deeds, bad_deeds))
            }
            _ => Err("Invalid CSV format"),
            
        }
    }
    pub fn new(name: String, good_deeds: u32, bad_deeds: u32) -> Self {
        let niceness = if Self::is_nice(good_deeds, bad_deeds) {
            Niceness::Nice(good_deeds)
        } else {
            Niceness::Naughty
        };
        Self { name, niceness }
    }
    pub fn is_nice(good_deeds: u32, bad_deeds: u32) -> bool {
        if good_deeds == 0 && bad_deeds == 0 {
            return false;
        }
        let good_deeds = good_deeds as f32 * GOOD_WEIGHT;
        let bad_deeds = bad_deeds as f32 * BAD_WEIGHT;
        let ratio = good_deeds / (good_deeds + bad_deeds);
        ratio >= 0.75
    }
}

deo2407

a month ago

4.62ms

90.44kb

pub const GOOD_WEIGHT: f32 = 1.0;
pub const BAD_WEIGHT: f32 = 2.0;
#[derive(Debug, PartialEq)]
pub enum Niceness {
    Nice(u32),
    Naughty,
}
pub struct Kid {
    pub name: String,
    pub niceness: Niceness,
}
impl Kid {
    pub fn parse_row(csv_row: &str) -> Result<Kid, &'static str> {
        // 🎁 Transform the CSV row into a Kid struct for Santa's list!
        // 🎅 Expected CSV: "Name,GoodDeeds,BadDeeds"
        //    Example: "Alice,3,1" -> name: "Alice", good_deeds: 3, bad_deeds: 1
        let mut fields = csv_row.split(",");
        let name = fields.next().ok_or("Missing name")?; 
        let good_deeds = fields.next().ok_or("Missing good deeds")?
            .parse().map_err(|_| "Invalid good deeds")?;
        let bad_deeds = fields.next().ok_or("Missing bad deeds")?
            .parse().map_err(|_| "Invalid bad deeds")?;
        Ok(Self::new(name.to_string(), good_deeds, bad_deeds))
    }
    pub fn new(name: String, good_deeds: u32, bad_deeds: u32) -> Self {
        let niceness = if Self::is_nice(good_deeds, bad_deeds) {
            Niceness::Nice(good_deeds)
        } else {
            Niceness::Naughty
        };
        Self { name, niceness }
    }
    pub fn is_nice(good_deeds: u32, bad_deeds: u32) -> bool {
        if good_deeds == 0 && bad_deeds == 0 {
            return false;
        }
        let good_deeds = good_deeds as f32 * GOOD_WEIGHT;
        let bad_deeds = bad_deeds as f32 * BAD_WEIGHT;
        let ratio = good_deeds / (good_deeds + bad_deeds);
        ratio >= 0.75
    }
}

deo2407

a month ago

5.26ms

89.88kb

pub const GOOD_WEIGHT: f32 = 1.0;
pub const BAD_WEIGHT: f32 = 2.0;
#[derive(Debug, PartialEq)]
pub enum Niceness {
    Nice(u32),
    Naughty,
}
pub struct Kid {
    pub name: String,
    pub niceness: Niceness,
}
impl Kid {
    pub fn parse_row(csv_row: &str) -> Result<Kid, &'static str> {
        // 🎁 Transform the CSV row into a Kid struct for Santa's list!
        // 🎅 Expected CSV: "Name,GoodDeeds,BadDeeds"
        //    Example: "Alice,3,1" -> name: "Alice", good_deeds: 3, bad_deeds: 1
        let mut values = csv_row.split(",");
        let name = match values.next() {
            Some(name) => name,
            None => return Err("Didn't receive a name")
        };
        let good_deeds = match values.next() {
            Some(good_deeds) => good_deeds,
            None => return Err("Didn't receive good deeds")
        };
        let bad_deeds = match values.next() {
            Some(bad_deeds) => bad_deeds,
            None => return Err("Didn't receive bad deeds")
        };
        let name = String::from(name);
        let good_deeds: u32 = match good_deeds.parse() {
            Ok(n) => n,
            Err(_) => return Err("Incorrect formatting")
        }; 
        let bad_deeds: u32 = match bad_deeds.parse() {
            Ok(n) => n,
            Err(_) => return Err("Incorrect formatting")
        };
        Ok(Self::new(name, good_deeds, bad_deeds))
    }
    pub fn new(name: String, good_deeds: u32, bad_deeds: u32) -> Self {
        let niceness = if Self::is_nice(good_deeds, bad_deeds) {
            Niceness::Nice(good_deeds)
        } else {
            Niceness::Naughty
        };
        Self { name, niceness }
    }
    pub fn is_nice(good_deeds: u32, bad_deeds: u32) -> bool {
        if good_deeds == 0 && bad_deeds == 0 {
            return false;
        }
        let good_deeds = good_deeds as f32 * GOOD_WEIGHT;
        let bad_deeds = bad_deeds as f32 * BAD_WEIGHT;
        let ratio = good_deeds / (good_deeds + bad_deeds);
        ratio >= 0.75
    }
}

David Phillips

Zantier

a month ago

5.42ms

90.44kb

pub const GOOD_WEIGHT: f32 = 1.0;
pub const BAD_WEIGHT: f32 = 2.0;
#[derive(Debug, PartialEq)]
pub enum Niceness {
    Nice(u32),
    Naughty,
}
#[derive(Debug, PartialEq)]
pub struct Kid {
    pub name: String,
    pub niceness: Niceness,
}
impl Kid {
    pub fn parse_row(csv_row: &str) -> Result<Kid, &'static str> {
        // 🎁 Transform the CSV row into a Kid struct for Santa's list!
        // 🎅 Expected CSV: "Name,GoodDeeds,BadDeeds"
        //    Example: "Alice,3,1" -> name: "Alice", good_deeds: 3, bad_deeds: 1
        // 🎁 Your code here! 🎁
        let mut split = csv_row.split(",");
        let name = split.next().ok_or("name field missing")?;
        let good_deeds = split.next().ok_or("good_deeds field missing")?;
        let bad_deeds = split.next().ok_or("bad_deeds field missing")?;
        let good_deeds = good_deeds.parse().ok().ok_or("Failed to parse good_deeds")?;
        let bad_deeds = bad_deeds.parse().ok().ok_or("Failed to parse bad_deeds")?;
        Ok(Self::new(name.to_string(), good_deeds, bad_deeds))
    }
    pub fn new(name: String, good_deeds: u32, bad_deeds: u32) -> Self {
        let niceness = if Self::is_nice(good_deeds, bad_deeds) {
            Niceness::Nice(good_deeds)
        } else {
            Niceness::Naughty
        };
        Self { name, niceness }
    }
    pub fn is_nice(good_deeds: u32, bad_deeds: u32) -> bool {
        if good_deeds == 0 && bad_deeds == 0 {
            return false;
        }
        let good_deeds = good_deeds as f32 * GOOD_WEIGHT;
        let bad_deeds = bad_deeds as f32 * BAD_WEIGHT;
        let ratio = good_deeds / (good_deeds + bad_deeds);
        ratio >= 0.75
    }
}
#[cfg(test)]
mod test {
    use crate::{Kid, Niceness};
    #[test]
    fn test_parse_row() {
        assert_eq!(Kid::parse_row("Alice,3,1"), Ok(Kid { name: "Alice".to_string(), niceness: Niceness::Naughty }));
        assert_eq!(Kid::parse_row("Alice,6,1"), Ok(Kid { name: "Alice".to_string(), niceness: Niceness::Nice(6) }));
    }
    #[test]
    fn test_parse_row_errors() {
        assert!(Kid::parse_row("Alice").is_err());
        assert!(Kid::parse_row("Alice,3").is_err());
        assert!(Kid::parse_row("Alice,3,hi").is_err());
        assert!(Kid::parse_row("Alice,hi,1").is_err());
    }
}

David Phillips

Zantier

a month ago

5.53ms

90.44kb

pub const GOOD_WEIGHT: f32 = 1.0;
pub const BAD_WEIGHT: f32 = 2.0;
#[derive(Debug, PartialEq)]
pub enum Niceness {
    Nice(u32),
    Naughty,
}
#[derive(Debug, PartialEq)]
pub struct Kid {
    pub name: String,
    pub niceness: Niceness,
}
impl Kid {
    pub fn parse_row(csv_row: &str) -> Result<Kid, &'static str> {
        // 🎁 Transform the CSV row into a Kid struct for Santa's list!
        // 🎅 Expected CSV: "Name,GoodDeeds,BadDeeds"
        //    Example: "Alice,3,1" -> name: "Alice", good_deeds: 3, bad_deeds: 1
        // 🎁 Your code here! 🎁
        let mut split = csv_row.split(",");
        let name = split.next().ok_or("name field missing")?;
        let good_deeds = split.next().ok_or("good_deeds field missing")?;
        let bad_deeds = split.next().ok_or("bad_deeds field missing")?;
        let good_deeds = good_deeds.parse().ok().ok_or("Failed to parse good_deeds")?;
        let bad_deeds = bad_deeds.parse().ok().ok_or("Failed to parse bad_deeds")?;
        Ok(Self::new(name.to_string(), good_deeds, bad_deeds))
    }
    pub fn new(name: String, good_deeds: u32, bad_deeds: u32) -> Self {
        let niceness = if Self::is_nice(good_deeds, bad_deeds) {
            Niceness::Nice(good_deeds)
        } else {
            Niceness::Naughty
        };
        Self { name, niceness }
    }
    pub fn is_nice(good_deeds: u32, bad_deeds: u32) -> bool {
        if good_deeds == 0 && bad_deeds == 0 {
            return false;
        }
        let good_deeds = good_deeds as f32 * GOOD_WEIGHT;
        let bad_deeds = bad_deeds as f32 * BAD_WEIGHT;
        let ratio = good_deeds / (good_deeds + bad_deeds);
        ratio >= 0.75
    }
}
#[cfg(test)]
mod test {
    use crate::{Kid, Niceness};
    #[test]
    fn test_parse_row() {
        assert_eq!(Kid::parse_row("Alice,3,1"), Ok(Kid { name: "Alice".to_string(), niceness: Niceness::Naughty }));
        assert_eq!(Kid::parse_row("Alice,6,1"), Ok(Kid { name: "Alice".to_string(), niceness: Niceness::Nice(6) }));
    }
    #[test]
    fn test_parse_row_errors() {
        assert!(Kid::parse_row("Alice").is_err());
        assert!(Kid::parse_row("Alice,3").is_err());
        assert!(Kid::parse_row("Alice,3,hi").is_err());
        assert!(Kid::parse_row("Alice,hi,1").is_err());
    }
}

Mary Wangui

Zeegaths

a month ago

4.14ms

90.44kb

pub const GOOD_WEIGHT: f32 = 1.0;
pub const BAD_WEIGHT: f32 = 2.0;
#[derive(Debug, PartialEq)]
pub enum Niceness {
    Nice(u32),
    Naughty,
}
pub struct Kid {
    pub name: String,
    pub niceness: Niceness,
}
impl Kid {
   pub fn parse_row(csv_row: &str) -> Result<Kid, &'static str> {
        let fields: Vec<&str> = csv_row.trim().split(',').collect();
        if fields.len() != 3 {
            return Err("Expected 3 fields: name, good_deeds, bad_deeds");
        }
        let name = fields[0].to_string();
        let good_deeds = fields[1].parse::<u32>().map_err(|_| "Invalid good_deeds")?;
        let bad_deeds = fields[2].parse::<u32>().map_err(|_| "Invalid bad_deeds")?;
        Ok(Self::new(name, good_deeds, bad_deeds))
    }
   
    pub fn new(name: String, good_deeds: u32, bad_deeds: u32) -> Self {
        let niceness = if Self::is_nice(good_deeds, bad_deeds) {
            Niceness::Nice(good_deeds)
        } else {
            Niceness::Naughty
        };
        Self { name, niceness }
    }
    pub fn is_nice(good_deeds: u32, bad_deeds: u32) -> bool {
        if good_deeds == 0 && bad_deeds == 0 {
            return false;
        }
        let good_deeds = good_deeds as f32 * GOOD_WEIGHT;
        let bad_deeds = bad_deeds as f32 * BAD_WEIGHT;
        let ratio = good_deeds / (good_deeds + bad_deeds);
        ratio >= 0.75
    }
}

Viwaswat Raj Singh

viwaswatraj

2 months ago

4.93ms

89.24kb

pub const GOOD_WEIGHT: f32 = 1.0;
pub const BAD_WEIGHT: f32 = 2.0;
#[derive(Debug, PartialEq)]
pub enum Niceness {
    Nice(u32),
    Naughty,
}
pub struct Kid {
    pub name: String,
    pub niceness: Niceness,
}
impl Kid {
    pub fn parse_row(csv_row: &str) -> Result<Kid, &'static str> {
        // 🎁 Transform the CSV row into a Kid struct for Santa's list!
        // 🎅 Expected CSV: "Name,GoodDeeds,BadDeeds"
        //    Example: "Alice,3,1" -> name: "Alice", good_deeds: 3, bad_deeds: 1
        // 🎁 Your code here! 🎁
        let mut row_iter = csv_row.split(",");
        // Getting name
        let name: Option<String> = row_iter.next().map(|name_str| String::from(name_str));
        
        // Getting good deeds
        let good_deeds: Option<u32> = row_iter.next().and_then(|deeds| {
            deeds.parse::<u32>().ok()
        });
        // Getting bad deeds
        let bad_deeds: Option<u32> = row_iter.next().and_then(|deeds| {
            deeds.parse::<u32>().ok()
        });
        
        // Checking for invalid input
        if good_deeds.is_none() || bad_deeds.is_none() || name.is_none() {
            return Err("Invalid Input");
        }
        // Unwrapping all the var and returning
        let name = name.unwrap();
        let good_deeds = good_deeds.unwrap();
        let bad_deeds = bad_deeds.unwrap();
        Ok(Self::new(name, good_deeds, bad_deeds))
    }
    pub fn new(name: String, good_deeds: u32, bad_deeds: u32) -> Self {
        let niceness = if Self::is_nice(good_deeds, bad_deeds) {
            Niceness::Nice(good_deeds)
        } else {
            Niceness::Naughty
        };
        Self { name, niceness }
    }
    pub fn is_nice(good_deeds: u32, bad_deeds: u32) -> bool {
        if good_deeds == 0 && bad_deeds == 0 {
            return false;
        }
        let good_deeds = good_deeds as f32 * GOOD_WEIGHT;
        let bad_deeds = bad_deeds as f32 * BAD_WEIGHT;
        let ratio = good_deeds / (good_deeds + bad_deeds);
        ratio >= 0.75
    }
}

Nelly Whads

NellyWhads

2 months ago

4.59ms

90.44kb

pub const GOOD_WEIGHT: f32 = 1.0;
pub const BAD_WEIGHT: f32 = 2.0;
#[derive(Debug, PartialEq)]
pub enum Niceness {
    Nice(u32),
    Naughty,
}
pub struct Kid {
    pub name: String,
    pub niceness: Niceness,
}
impl Kid {
    pub fn parse_row(csv_row: &str) -> Result<Kid, &'static str> {
        // 🎁 Transform the CSV row into a Kid struct for Santa's list!
        // 🎅 Expected CSV: "Name,GoodDeeds,BadDeeds"
        //    Example: "Alice,3,1" -> name: "Alice", good_deeds: 3, bad_deeds: 1
        // 🎁 Your code here! 🎁
        let parts:Vec<&str> = csv_row.split(",").collect();
        if parts.len() != 3 {
            return Err("Unexpected number of parts.");
        }
        let name = parts[0].to_string();
        let good_deeds = parts[1].parse::<u32>().map_err(|_| "Invalid good deeds.")?;
        let bad_deeds = parts[2].parse::<u32>().map_err(|_| "Invalid good deeds.")?;
        Ok(Self::new(name, good_deeds, bad_deeds))
    }
    pub fn new(name: String, good_deeds: u32, bad_deeds: u32) -> Self {
        let niceness = if Self::is_nice(good_deeds, bad_deeds) {
            Niceness::Nice(good_deeds)
        } else {
            Niceness::Naughty
        };
        Self { name, niceness }
    }
    pub fn is_nice(good_deeds: u32, bad_deeds: u32) -> bool {
        if good_deeds == 0 && bad_deeds == 0 {
            return false;
        }
        let good_deeds = good_deeds as f32 * GOOD_WEIGHT;
        let bad_deeds = bad_deeds as f32 * BAD_WEIGHT;
        let ratio = good_deeds / (good_deeds + bad_deeds);
        ratio >= 0.75
    }
}

Davide Butera

davide-butera

2 months ago

4.20ms

89.24kb

pub const GOOD_WEIGHT: f32 = 1.0;
pub const BAD_WEIGHT: f32 = 2.0;
#[derive(Debug, PartialEq)]
pub enum Niceness {
    Nice(u32),
    Naughty,
}
pub struct Kid {
    pub name: String,
    pub niceness: Niceness,
}
impl Kid {
    pub fn parse_row(csv_row: &str) -> Result<Kid, &'static str> {
        // 🎁 Transform the CSV row into a Kid struct for Santa's list!
        // 🎅 Expected CSV: "Name,GoodDeeds,BadDeeds"
        //    Example: "Alice,3,1" -> name: "Alice", good_deeds: 3, bad_deeds: 1
        // 🎁 Your code here! 🎁
        let mut fields = csv_row.split(",");
        let name = fields.next().ok_or("Missing field")?.parse().map_err(|_| "Invalid name")?;
        let good_deeds = fields.next().ok_or("Missing field")?.parse().map_err(|_| "Invalid name")?;
        let bad_deeds = fields.next().ok_or("Missing field")?.parse().map_err(|_| "Invalid name")?;
        Ok(Self::new(name, good_deeds, bad_deeds))
    }
    pub fn new(name: String, good_deeds: u32, bad_deeds: u32) -> Self {
        let niceness = if Self::is_nice(good_deeds, bad_deeds) {
            Niceness::Nice(good_deeds)
        } else {
            Niceness::Naughty
        };
        Self { name, niceness }
    }
    pub fn is_nice(good_deeds: u32, bad_deeds: u32) -> bool {
        if good_deeds == 0 && bad_deeds == 0 {
            return false;
        }
        let good_deeds = good_deeds as f32 * GOOD_WEIGHT;
        let bad_deeds = bad_deeds as f32 * BAD_WEIGHT;
        let ratio = good_deeds / (good_deeds + bad_deeds);
        ratio >= 0.75
    }
}

Splatrac

splatrac

2 months ago

4.79ms

90.44kb

pub const GOOD_WEIGHT: f32 = 1.0;
pub const BAD_WEIGHT: f32 = 2.0;
#[derive(Debug, PartialEq)]
pub enum Niceness {
    Nice(u32),
    Naughty,
}
pub struct Kid {
    pub name: String,
    pub niceness: Niceness,
}
impl Kid {
    pub fn parse_row(csv_row: &str) -> Result<Kid, &'static str> {
        // 🎁 Transform the CSV row into a Kid struct for Santa's list!
        // 🎅 Expected CSV: "Name,GoodDeeds,BadDeeds"
        //    Example: "Alice,3,1" -> name: "Alice", good_deeds: 3, bad_deeds: 1
        let row: Vec<&str> = csv_row.split(',').collect();
        if row.len() != 3 {
            return Err("Not correct number of fields");
        }
        match (row[0].to_string(), row[1].parse::<u32>(), row[2].parse::<u32>()) {
            (name, Ok(good_deeds), Ok(bad_deeds)) => {
                return Ok(Self::new(name, good_deeds, bad_deeds));
            },
            (_name, Err(_), _) => { return Err("Error parsing line"); },
            (_name, _, Err(_)) => { return Err("Error parsing line"); },
        }
        // 🎁 Your code here! 🎁
    }
    pub fn new(name: String, good_deeds: u32, bad_deeds: u32) -> Self {
        let niceness = if Self::is_nice(good_deeds, bad_deeds) {
            Niceness::Nice(good_deeds)
        } else {
            Niceness::Naughty
        };
        Self { name, niceness }
    }
    pub fn is_nice(good_deeds: u32, bad_deeds: u32) -> bool {
        if good_deeds == 0 && bad_deeds == 0 {
            return false;
        }
        let good_deeds = good_deeds as f32 * GOOD_WEIGHT;
        let bad_deeds = bad_deeds as f32 * BAD_WEIGHT;
        let ratio = good_deeds / (good_deeds + bad_deeds);
        ratio >= 0.75
    }
}

Yash Rawat

Yash-Rawat-IIT-D

2 months ago

4.93ms

90.17kb

pub const GOOD_WEIGHT: f32 = 1.0;
pub const BAD_WEIGHT: f32 = 2.0;
#[derive(Debug, PartialEq)]
pub enum Niceness {
    Nice(u32),
    Naughty,
}
pub struct Kid {
    pub name: String,
    pub niceness: Niceness,
}
impl Kid {
    pub fn parse_row(csv_row: &str) -> Result<Kid, &'static str> {
        // 🎁 Transform the CSV row into a Kid struct for Santa's list!
        // 🎅 Expected CSV: "Name,GoodDeeds,BadDeeds"
        //    Example: "Alice,3,1" -> name: "Alice", good_deeds: 3, bad_deeds: 1
        // 🎁 Your code here! 🎁
        let args : Vec<&str> = csv_row.split(',').collect();
        
        let name : String = args[0].to_string();
        match args.len() {
            3 => match (args[1].parse::<u32>() , args[2].parse::<u32>())
                {
                    (Ok(good_deeds),Ok(bad_deeds)) => Ok(Self::new(name, good_deeds, bad_deeds)),
                    (_,_) => Err("FOO"),
                },       
            _ => Err("FOO"),
        }
    }
    pub fn new(name: String, good_deeds: u32, bad_deeds: u32) -> Self {
        let niceness = if Self::is_nice(good_deeds, bad_deeds) {
            Niceness::Nice(good_deeds)
        } else {
            Niceness::Naughty
        };
        Self { name, niceness }
    }
    pub fn is_nice(good_deeds: u32, bad_deeds: u32) -> bool {
        if good_deeds == 0 && bad_deeds == 0 {
            return false;
        }
        let good_deeds = good_deeds as f32 * GOOD_WEIGHT;
        let bad_deeds = bad_deeds as f32 * BAD_WEIGHT;
        let ratio = good_deeds / (good_deeds + bad_deeds);
        ratio >= 0.75
    }
}

Khalifa

e1ec30

2 months ago

4.81ms

89.24kb

pub const GOOD_WEIGHT: f32 = 1.0;
pub const BAD_WEIGHT: f32 = 2.0;
#[derive(Debug, PartialEq)]
pub enum Niceness {
    Nice(u32),
    Naughty,
}
pub struct Kid {
    pub name: String,
    pub niceness: Niceness,
}
impl Kid {
    pub fn parse_row(csv_row: &str) -> Result<Kid, &'static str> {
        // 🎁 Transform the CSV row into a Kid struct for Santa's list!
        // 🎅 Expected CSV: "Name,GoodDeeds,BadDeeds"
        //    Example: "Alice,3,1" -> name: "Alice", good_deeds: 3, bad_deeds: 1
        // 🎁 Your code here! 🎁
        let mut items = csv_row.split(",");
        let name = items.next().ok_or("Missing field")?.to_string();
        let good: u32 = items.next().ok_or("Missing field")?.parse().map_err(|_| "Invalid good deeds")?;
        let bad: u32 = items.next().ok_or("Missing field")?.parse().map_err(|_| "Invalid bad deeds")?;
        Ok(Self::new(name, good, bad))
    }
    pub fn new(name: String, good_deeds: u32, bad_deeds: u32) -> Self {
        let niceness = if Self::is_nice(good_deeds, bad_deeds) {
            Niceness::Nice(good_deeds)
        } else {
            Niceness::Naughty
        };
        Self { name, niceness }
    }
    pub fn is_nice(good_deeds: u32, bad_deeds: u32) -> bool {
        if good_deeds == 0 && bad_deeds == 0 {
            return false;
        }
        let good_deeds = good_deeds as f32 * GOOD_WEIGHT;
        let bad_deeds = bad_deeds as f32 * BAD_WEIGHT;
        let ratio = good_deeds / (good_deeds + bad_deeds);
        ratio >= 0.75
    }
}

aldc990

2 months ago

5.04ms

89.24kb

pub const GOOD_WEIGHT: f32 = 1.0;
pub const BAD_WEIGHT: f32 = 2.0;
#[derive(Debug, PartialEq)]
pub enum Niceness {
    Nice(u32),
    Naughty,
}
pub struct Kid {
    pub name: String,
    pub niceness: Niceness,
}
impl Kid {
    pub fn parse_row(csv_row: &str) -> Result<Kid, &'static str> {
        // 🎁 Transform the CSV row into a Kid struct for Santa's list!
        // 🎅 Expected CSV: "Name,GoodDeeds,BadDeeds"
        //    Example: "Alice,3,1" -> name: "Alice", good_deeds: 3, bad_deeds: 1
        // 🎁 Your code here! 🎁
        let mut cols = csv_row.split(',');
        let name: String  = cols.next().unwrap().to_string();
        let good_deeds: u32 =  cols.next().ok_or("Missing field")?.parse::<u32>().map_err(|_| "Invalid good deeds")?;
        let bad_deeds: u32 =  cols.next().ok_or("Missing field")?.parse::<u32>().map_err(|_| "Invalid good deeds")?;
        Ok(Self::new(name, good_deeds, bad_deeds))
    }
    pub fn new(name: String, good_deeds: u32, bad_deeds: u32) -> Self {
        let niceness = if Self::is_nice(good_deeds, bad_deeds) {
            Niceness::Nice(good_deeds)
        } else {
            Niceness::Naughty
        };
        Self { name, niceness }
    }
    pub fn is_nice(good_deeds: u32, bad_deeds: u32) -> bool {
        if good_deeds == 0 && bad_deeds == 0 {
            return false;
        }
        let good_deeds = good_deeds as f32 * GOOD_WEIGHT;
        let bad_deeds = bad_deeds as f32 * BAD_WEIGHT;
        let ratio = good_deeds / (good_deeds + bad_deeds);
        ratio >= 0.75
    }
}

Pedro Diaz

pdiaz

2 months ago

5.20ms

90.44kb

pub const GOOD_WEIGHT: f32 = 1.0;
pub const BAD_WEIGHT: f32 = 2.0;
#[derive(Debug, PartialEq)]
pub enum Niceness {
    Nice(u32),
    Naughty,
}
pub struct Kid {
    pub name: String,
    pub niceness: Niceness,
}
impl Kid {
    pub fn parse_row(csv_row: &str) -> Result<Kid, &'static str> {
        // 🎁 Transform the CSV row into a Kid struct for Santa's list!
        // 🎅 Expected CSV: "Name,GoodDeeds,BadDeeds"
        //    Example: "Alice,3,1" -> name: "Alice", good_deeds: 3, bad_deeds: 1
        let split: Vec<_> = csv_row.split(",").collect();
        if split.len() != 3 {
            Err("Invalid number of columns")
        } else {
            let name = split[0].trim().to_owned();
            let good_deeds = match split[1].parse::<u32>() {
                Ok(v) => v,
                Err(_) => return Err("Error parsing good deeds"),
            };
            let bad_deeds = match split[2].parse::<u32>() {
                Ok(v) => v,
                Err(_) => return Err("Error parsing good deeds"),
            };
            Ok(Self::new(name, good_deeds, bad_deeds))
        }
    }
    pub fn new(name: String, good_deeds: u32, bad_deeds: u32) -> Self {
        let niceness = if Self::is_nice(good_deeds, bad_deeds) {
            Niceness::Nice(good_deeds)
        } else {
            Niceness::Naughty
        };
        Self { name, niceness }
    }
    pub fn is_nice(good_deeds: u32, bad_deeds: u32) -> bool {
        if good_deeds == 0 && bad_deeds == 0 {
            return false;
        }
        let good_deeds = good_deeds as f32 * GOOD_WEIGHT;
        let bad_deeds = bad_deeds as f32 * BAD_WEIGHT;
        let ratio = good_deeds / (good_deeds + bad_deeds);
        ratio >= 0.75
    }
}

SalazarTh

2 months ago

7.06ms

89.30kb

pub const GOOD_WEIGHT: f32 = 1.0;
pub const BAD_WEIGHT: f32 = 2.0;
#[derive(Debug, PartialEq)]
pub enum Niceness {
    Nice(u32),
    Naughty,
}
pub struct Kid {
    pub name: String,
    pub niceness: Niceness,
}
impl Kid {
    pub fn parse_row(csv_row: &str) -> Result<Kid, &'static str> {
        // 🎁 Transform the CSV row into a Kid struct for Santa's list!
        // 🎅 Expected CSV: "Name,GoodDeeds,BadDeeds"
        //    Example: "Alice,3,1" -> name: "Alice", good_deeds: 3, bad_deeds: 1
        // 🎁 Your code here! 🎁
        let list = csv_row.split(",").collect::<Vec<&str>>();
        if let (Some(name_str), Some(good_deeds_str), Some(bad_deeds_str)) = (list.get(0), list.get(1), list.get(2)) {
            let name = name_str.to_string();
            if let (Ok(good_deeds), Ok(bad_deeds)) = (good_deeds_str.parse::<u32>(), bad_deeds_str.parse::<u32>()) {
                Ok(Self::new(name, good_deeds, bad_deeds))
            } else {
                Err("Error")
            }
        } else {
            Err("Error")
        } 
        
    }
    pub fn new(name: String, good_deeds: u32, bad_deeds: u32) -> Self {
        let niceness = if Self::is_nice(good_deeds, bad_deeds) {
            Niceness::Nice(good_deeds)
        } else {
            Niceness::Naughty
        };
        Self { name, niceness }
    }
    pub fn is_nice(good_deeds: u32, bad_deeds: u32) -> bool {
        if good_deeds == 0 && bad_deeds == 0 {
            return false;
        }
        let good_deeds = good_deeds as f32 * GOOD_WEIGHT;
        let bad_deeds = bad_deeds as f32 * BAD_WEIGHT;
        let ratio = good_deeds / (good_deeds + bad_deeds);
        ratio >= 0.75
    }
}