Fizz Buzz

Your task is to write a Rust program that implements the classic programming challenge known as FizzBuzz.

You are given a function fizz_buzz(num: u32) -> String that takes a single parameter num of type u32 and returns a String.

Your job is to return a string based on the following rules:

Return "Fizz" for numbers that are multiples of 3.
Return "Buzz" for numbers that are multiples of 5.
Return "FizzBuzz" for numbers that are multiples of both 3 and 5.
Return the number itself for all other numbers.

Example

Here's how the behavior of the function should look like:

assert_eq!(fizz_buzz(1), "1");
assert_eq!(fizz_buzz(2), "2");
assert_eq!(fizz_buzz(3), "Fizz");
assert_eq!(fizz_buzz(4), "4");
assert_eq!(fizz_buzz(5), "Buzz");
assert_eq!(fizz_buzz(6), "Fizz");
assert_eq!(fizz_buzz(7), "7");
assert_eq!(fizz_buzz(8), "8");
assert_eq!(fizz_buzz(9), "Fizz");
assert_eq!(fizz_buzz(10), "Buzz");
assert_eq!(fizz_buzz(11), "11");
assert_eq!(fizz_buzz(12), "Fizz");
assert_eq!(fizz_buzz(13), "13");
assert_eq!(fizz_buzz(14), "14");
assert_eq!(fizz_buzz(15), "FizzBuzz");

Good luck, and happy coding!

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Solutions

Arpan Shingala

arpan-vs

5 days ago

3.25ms

86.71kb

pub fn fizz_buzz(num: u32) -> String {
    // TODO: Implement the FizzBuzz challenge
    match num {
        n if n % 15 == 0 => "FizzBuzz".to_string(),
        n if n % 3 == 0 => "Fizz".to_string(),
        n if n % 5 == 0 => "Buzz".to_string(),
        n => n.to_string(),
    }
}

amdfxlucas

6 days ago

2.86ms

86.71kb

pub fn fizz_buzz(num: u32) -> String {
   if num % 15 == 0
   {return "FizzBuzz".to_string();}
   if num%5 == 0 {
    return "Buzz".to_string();
   }
   if num%3 == 0 {
    return "Fizz".to_string()
   }
   return format!("{num}");
}

GunGraveCpp

6 days ago

3.48ms

86.71kb

pub fn fizz_buzz(num: u32) -> String {
    match num {
        n if n % 15 == 0 => "FizzBuzz".to_string(),
        n if n % 3 == 0 => "Fizz".to_string(),
        n if n % 5 == 0 => "Buzz".to_string(),
        n => n.to_string(),
    }
}

Miguel Ángel Allende

maallende

9 days ago

3.12ms

86.71kb

pub fn fizz_buzz(num: u32) -> String {
    // TODO: Implement the FizzBuzz challenge
    match num{
        n if n % 3 == 0 && n % 5 == 0 => "FizzBuzz".to_string(),
        n if n % 3 == 0 => "Fizz".to_string(),
        n if n % 5 == 0 => "Buzz".to_string(),
        _ => num.to_string(),
    }
}

manu3618

10 days ago

3.14ms

86.71kb

pub fn fizz_buzz(num: u32) -> String {
    // TODO: Implement the FizzBuzz challenge
    let fiz = if num % 3 == 0 {"Fizz"} else {""};
    let buz = if num % 5 == 0 {"Buzz"} else {""};
    let num = if fiz.is_empty() && buz.is_empty() {&format!("{num}")} else {""};
    format!("{}{}{}",fiz, buz, num)
}

aghia98

11 days ago

3.10ms

86.71kb

pub fn fizz_buzz(num: u32) -> String {
    // TODO: Implement the FizzBuzz challenge
    let mut to_return = String::new();
    if num%3==0 {
        to_return += "Fizz";
    }
    if num%5==0 {
        to_return += "Buzz";
    }
    if to_return == "" {
        to_return = num.to_string()
    }
    to_return
}

TwinJt

16 days ago

3.13ms

86.71kb

pub fn fizz_buzz(num: u32) -> String {
    if num % 3 == 0 {
        if num % 5 == 0 {
            return String::from("FizzBuzz");
        }
        return String::from("Fizz");
    } 
    else if num % 5 == 0 {
        return String::from("Buzz");
    } else {
        return num.to_string()
    }
    
}

Christophe Pronier

chrpron

19 days ago

2.85ms

86.71kb

pub fn fizz_buzz(num: u32) -> String {
    // TODO: Implement the FizzBuzz challenge
        if num%3 == 0 && num%5 == 0 {
            return "FizzBuzz".to_string()
        } else if num%3 == 0 {
            return "Fizz".to_string()
        } else if num%5 == 0 {
            return "Buzz".to_string()
        } else {
            return format!("{num}")
        }
    
}

Walter White

durgaprasad118

20 days ago

2.99ms

86.71kb

pub fn fizz_buzz(num: u32) -> String {
    // TODO: Implement the FizzBuzz challenge
    //     if num%3 ==0 && num%5==0 {
    //     return String::from("FizzBuzz");}
    //     if num%3==0 { return String::from("Fizz");}
    //    if num%5==0 {return String::from("Buzz");}
    //    num.to_string()
    match (num%3, num%5){
        (0,0) => String::from("FizzBuzz"),
        (0,_) => String::from("Fizz"),
        (_,0) => String::from("Buzz"),
        _=> num.to_string()
    }
}

bzdula

21 days ago

3.04ms

86.71kb

pub fn fizz_buzz(num: u32) -> String {
    match num {
        _ if num % 3 == 0 && num % 5 == 0 => "FizzBuzz".to_owned(),
        _ if num % 3 == 0 => "Fizz".to_owned(),
        _ if num % 5 == 0 => "Buzz".to_owned(),
        _ => num.to_string(),
    }
    // TODO: Implement the FizzBuzz challenge
}

Ranjith Thangavel

RanjithECE24

24 days ago

3.22ms

86.71kb

pub fn fizz_buzz(num: u32) -> String {
    // TODO: Implement the FizzBuzz challenge
    if num % 3 == 0 && num % 5 == 0 {
        String::from("FizzBuzz")
    } else if num % 3 == 0 {
        String::from("Fizz")
    } else if num % 5 == 0  {
        String::from("Buzz")
    } else {
        num.to_string()
    }
}

Wouter

WouterMartens

a month ago

3.71ms

86.71kb

pub fn fizz_buzz(num: u32) -> String {
    let fizz = num % 3 == 0;
    let buzz = num % 5 == 0;
    match (fizz, buzz) {
        (true, true) => String::from("FizzBuzz"),
        (true, false) => String::from("Fizz"),
        (false, true) => String::from("Buzz"),
        _ => num.to_string()
    }
}

whhc

a month ago

2.94ms

86.71kb

pub fn fizz_buzz(num: u32) -> String {
    if num % 3 == 0 && num % 5 == 0 {
        "FizzBuzz".to_string()
    } else if num % 3 == 0 {
        "Fizz".to_string()
    } else if num % 5 == 0 {
        "Buzz".to_string()
    } else {
        num.to_string()
    }
}

Andy Randrianirina

andyslash

a month ago

3.06ms

86.71kb

pub fn fizz_buzz(num: u32) -> String {
    // TODO: Implement the FizzBuzz challenge
    match (num%3 , num%5) {
        (0,0) => "FizzBuzz".to_string(),
        (0,_) => "Fizz".to_string(),
        (_,0) => "Buzz".to_string(),
        _ => num.to_string(),
    }
}

Heino Mortensen

hmortensen83

a month ago

3.18ms

86.71kb

pub fn fizz_buzz(num: u32) -> String {
    let mul_3 = num % 3 == 0;
    let mul_5 = num % 5 == 0;
    let output = match (mul_3, mul_5) {
        (true, false) => "Fizz",
        (false, true) => "Buzz",
        (true, true) => "FizzBuzz",
        (false, false) => &format!("{num}"),
    };
    output.to_string()
}

Aniket Varma

aniketvarma

a month ago

4.07ms

86.71kb

pub fn fizz_buzz(num: u32) -> String {
    // TODO: Implement the FizzBuzz challenge
    match (num%3 , num%5) {
        (0,0) => "FizzBuzz".to_string(),
        (0,_) => "Fizz".to_string(),
        (_,0) => "Buzz".to_string(),
        _ => num.to_string(),
    }
       
}

medzernik

a month ago

3.01ms

86.71kb

pub fn fizz_buzz(num: u32) -> String {
    match num {
        n if n % 3 == 0 && n % 5 == 0 => "FizzBuzz".to_string(),
        n if n % 5 == 0 => "Buzz".to_string(),
        n if n % 3 == 0 => "Fizz".to_string(),
        n => n.to_string(),
    }
}

Baron Curtin

baroncurtin2

a month ago

3.34ms

86.71kb

pub fn fizz_buzz(num: u32) -> String {
    match (num % 3 == 0, num % 5 == 0) {
        (true, true) => "FizzBuzz".into(),
        (true, false) => "Fizz".into(),
        (false, true) => "Buzz".into(),
        (false, false) => num.to_string(),
    }
}

Evrins Hu

evrins

a month ago

4.12ms

86.71kb

pub fn fizz_buzz(num: u32) -> String {
    match num {
        n if n % 15 == 0 => "FizzBuzz".to_string(),
        n if n % 3 == 0 =>"Fizz".to_string(),
        n if n % 5 == 0 => "Buzz".to_string(),
        n => n.to_string(),
    }
}

Артём

voodookiidoo

a month ago

4.17ms

86.71kb

pub fn fizz_buzz(num: u32) -> String {
    if num % 3 == 0 && num % 5 == 0{
        "FizzBuzz".to_string()
    } else if num % 3 == 0{
        "Fizz".to_string()
    } else if num % 5 == 0{
        "Buzz".to_string()
    } else {
        num.to_string()
    }
}

johndoe30bc

a month ago

3.44ms

86.71kb

pub fn fizz_buzz(num: u32) -> String {
    let mut result = String::new();
    if num % 3 == 0 {
        result.push_str("Fizz");
    }
    if num % 5 == 0 {
        result.push_str("Buzz");
    }
    if result.is_empty() {
        result.push_str(&num.to_string())
    }
    result
}

xxxxsk

a month ago

3.49ms

86.71kb

pub fn fizz_buzz(num: u32) -> String {
    if num % 15 == 0 {
        "FizzBuzz".into()
    } else if num % 3 == 0 {
        "Fizz".into()
    } else if num % 5 == 0 {
        "Buzz".into()
    } else {
        format!("{num}")
    }
}

Evgenii Grigorenko

grevgeny

a month ago

3.77ms

86.71kb

pub fn fizz_buzz(num: u32) -> String {
    if num % 15 == 0 {
        "FizzBuzz".into()
    } else if num % 3 == 0 {
        "Fizz".into()
    } else if num % 5 == 0 {
        "Buzz".into()
    } else {
        format!("{num}")
    }
}

brucecox01

a month ago

3.64ms

86.71kb

pub fn fizz_buzz(num: u32) -> String {
    // TODO: Implement the FizzBuzz challenge
    if num % 3 == 0 {
        if num % 5 == 0 {
            String::from("FizzBuzz")
        } else {
            String::from("Fizz")
        }
    } else if num % 5 == 0 {
        String::from("Buzz")
    } else {
        num.to_string()
    }
}

Ashish Khare

ashishk1331

a month ago

2.85ms

86.71kb

pub fn fizz_buzz(num: u32) -> String {
    if num%5 == 0 && num%3 == 0 {
        "FizzBuzz".to_string()
    } else if num %5 == 0 {
        "Buzz".to_string()
    } else if num %3 == 0 {
        "Fizz".to_string()
    } else {
        format!("{}", num)
    }
}

pickbiest

a month ago

3.07ms

86.71kb

pub fn fizz_buzz(num: u32) -> String {
    let r3 = num % 3;
    let r5 = num % 5;
    if r3 == 0 {
        if r5 == 0 {
            String::from("FizzBuzz")
        } else {
            String::from("Fizz")
        }
    } else if r5 == 0 {
        String::from("Buzz")
    } else {
        num.to_string()
    }
}

orao-pao

2 months ago

2.90ms

86.71kb

pub fn fizz_buzz(num: u32) -> String {
    // TODO: Implement the FizzBuzz challenge
    if num % 15 == 0 {
        "FizzBuzz".to_string()
    } else if num % 5 == 0 {
        "Buzz".to_string()
    } else if num % 3 == 0 {
        "Fizz".to_string()
    } else {
        num.to_string()
    }
}

Krzysztof Atłasik

katlasik

2 months ago

3.77ms

86.71kb

pub fn fizz_buzz(num: u32) -> String {
    let mut result = String::new();
    if num % 3 == 0 {
        result += "Fizz";
    }
    if num % 5 == 0 {
        result += "Buzz";
    }
    if  result.is_empty() {
        result += &num.to_string()
    }
    result
}

Kr0wZ

2 months ago

3.23ms

86.71kb

pub fn fizz_buzz(num: u32) -> String {
    // TODO: Implement the FizzBuzz challenge
    match num {
        n if n % 3 == 0 && n % 5 == 0 => String::from("FizzBuzz"),
        n if n % 3 == 0 => String::from("Fizz"),
        n if n % 5 == 0 => String::from("Buzz"),
        _ => num.to_string(),
    }
}

Alexander Y

unixander

2 months ago

2.97ms

86.71kb

pub fn fizz_buzz(num: u32) -> String {
    if num % 3 == 0 && num % 5 == 0 {
        "FizzBuzz".to_string()
    } else if num % 3 == 0 {
        "Fizz".to_string()
    } else if num % 5 == 0 {
        "Buzz".to_string()
    } else {
        num.to_string()
    }
}

Philippe Massicotte

PMassicotte

2 months ago

4.28ms

86.71kb

pub fn fizz_buzz(num: u32) -> String {
    match (num % 3, num % 5) {
        (0, 0) => "FizzBuzz".to_string(),
        (0, _) => "Fizz".to_string(),
        (_, 0) => "Buzz".to_string(),
        _ => num.to_string(),
    }
}

Harsh Ranjan

harshRn

2 months ago

2.98ms

86.71kb

pub fn fizz_buzz(num: u32) -> String {
    // TODO: Implement the FizzBuzz challenge
    if num % 3 == 0 {
        if num % 5 == 0 {
            return "FizzBuzz".to_string();
        }
        return "Fizz".to_string();
    } else {
        if num % 5 == 0 {
            return "Buzz".to_string();
        }
        num.to_string()
    }
}

jeroenvgestel

2 months ago

2.99ms

86.71kb

pub fn fizz_buzz(num: u32) -> String {
    // TODO: Implement the FizzBuzz challenge
    let is_fizz: bool = num % 3 == 0;
    let is_buzz: bool = num % 5 == 0;
    if is_fizz && is_buzz {
        return "FizzBuzz".to_string();
    } else if is_fizz {
        return "Fizz".to_string();
    } else if is_buzz {
        return "Buzz".to_string();
    } else {
        return format!("{num}");
    }
}

Coppez

2 months ago

3.03ms

86.71kb

pub fn fizz_buzz(num: u32) -> String {
    // TODO: Implement the FizzBuzz challenge
    if num%3 == 0 && num%5 == 0 { return "FizzBuzz".to_string()}
    if num%3 == 0 { return "Fizz".to_string()}
    if num%5 == 0 { return "Buzz".to_string()}
    return num.to_string()
}

Luigi Terrone

LuigiTer

2 months ago

2.90ms

86.71kb

pub fn fizz_buzz(num: u32) -> String {
    // TODO: Implement the FizzBuzz challenge
    let fizz: bool = num % 3 == 0;
    let buzz: bool = num % 5 == 0;
    let fizz_buzz: bool = fizz && buzz;
    if fizz_buzz {
        return "FizzBuzz".to_string();
    } 
    
    if fizz {
        return "Fizz".to_string();
    } 
    if buzz {
        return "Buzz".to_string();
    }
    num.to_string()
}

Enes

enesscevik

2 months ago

3.30ms

86.71kb

pub fn fizz_buzz(num: u32) -> String {
    // TODO: Implement the FizzBuzz challenge
    if num % 3 == 0 && num % 5 == 0 {
        "FizzBuzz".to_owned()
    } else if num % 3 == 0 {
        "Fizz".to_owned()
    } else if num % 5 == 0 {
        "Buzz".to_owned()
    } else {
        num.to_string()
    }
}

ikatlinsky

2 months ago

3.22ms

86.71kb

pub fn fizz_buzz(num: u32) -> String {
    if num % 15 == 0 {
        return String::from("FizzBuzz")
    }
    if num % 3 == 0 {
        return String::from("Fizz");
    }
    if num % 5 == 0 {
        return String::from("Buzz");
    }
    return num.to_string();
}

Aztra Corporation Inc.

AZTRA2022

2 months ago

4.32ms

86.71kb

pub fn fizz_buzz(num: u32) -> String {
    if num % 3 == 0 {
        if num % 5 == 0  {
            return "FizzBuzz".to_string()
        }
        return "Fizz".to_string()
    }else if num % 5 == 0 {
        return "Buzz".to_string()
    }else{
        return num.to_string()
    }
}

LeonardoPinheiro23

2 months ago

3.46ms

86.71kb

pub fn fizz_buzz(num: u32) -> String {
    match num {
        number if number % 15 == 0 => "FizzBuzz".into(),
        number if number % 3 == 0 => "Fizz".into(),
        number if number % 5 == 0 => "Buzz".into(),
        number  => number.to_string(),
    }
}

LeonardoPinheiro23

2 months ago

3.64ms

86.71kb

pub fn fizz_buzz(num: u32) -> String {
    if num % 3 == 0 {
        if num % 5 == 0 {
            return "FizzBuzz".into();
        }
        return "Fizz".into();
    }
    if num % 5 == 0 {
        return "Buzz".into();
    }
    num.to_string()
}

annececiledunand

2 months ago

2.86ms

86.71kb

pub fn fizz_buzz(num: u32) -> String {
    match num {
        i if i % 3 == 0 && i % 5 == 0 => "FizzBuzz".to_string(),
        i if i % 3 == 0 => "Fizz".to_string(),
        i if i % 5 == 0 => "Buzz".to_string(),
        i => format!("{i}"),
    }
}

sjmellor

3 months ago

2.84ms

86.71kb

pub fn fizz_buzz(num: u32) -> String {
    // TODO: Implement the FizzBuzz challenge
    let mod_3 = num % 3;
    let mod_5 = num % 5;
    match (mod_3, mod_5) {
        (0, 0) => "FizzBuzz".to_string(),
        (0, _) => "Fizz".to_string(),
        (_, 0) => "Buzz".to_string(),
        _ => num.to_string(),
    }
}

Maicon Crespo

maiconcrespo

3 months ago

3.13ms

86.71kb

pub fn fizz_buzz(num: u32) -> String {
   match num{
    num if num %3 ==0 && num % 5 ==0 => "FizzBuzz".to_string(),
    num if num %3 == 0 => "Fizz".to_string(),
    num if num %5 == 0 => "Buzz".to_string(),
    
    num => num.to_string(),
   }
}

shibu-t

3 months ago

2.83ms

86.71kb

pub fn fizz_buzz(i: i32) -> String {
    match i {
        i if i % 15 == 0 => "FizzBuzz".to_string(),
        i if i % 3 == 0 => "Fizz".to_string(),
        i if i % 5 == 0 => "Buzz".to_string(),
        _ => i.to_string(),
    }
}

Holger Knauer

hknauer

3 months ago

2.80ms

86.71kb

pub fn fizz_buzz(num: u32) -> String {
    // TODO: Implement the FizzBuzz challenge
    match num {
        n if n%(3*5) == 0 => "FizzBuzz".to_string(),
        n if n%(5) == 0 => "Buzz".to_string(),
        n if n%(3) == 0 => "Fizz".to_string(),
        n => n.to_string(),
    }
}

ggnne

3 months ago

3.05ms

86.70kb

pub fn fizz_buzz(num: u32) -> String {
    // TODO: Implement the FizzBuzz challenge
    let mut string = String::new();
    if num % 3 == 0 {
        string.push_str("Fizz");
    }
    if num % 5 == 0 {
        string.push_str("Buzz")
    }
    string
}

Tommytto

3 months ago

2.78ms

86.71kb

pub fn fizz_buzz(num: u32) -> String {
    // TODO: Implement the FizzBuzz challenge
    match num {
        n if n % 3 == 0 && n % 5 == 0 => "FizzBuzz".to_string(),
        n if n % 3 == 0 => "Fizz".to_string(),
        n if n % 5 == 0 => "Buzz".to_string(),
        n => format!("{}", n)
    }
}

Tommytto

3 months ago

3.49ms

86.71kb

pub fn fizz_buzz(num: u32) -> String {
    // TODO: Implement the FizzBuzz challenge
    match num {
        n if n % 3 == 0 && n % 5 == 0 => "FizzBuzz".to_string(),
        n if n % 3 == 0 => "Fizz".to_string(),
        n if n % 5 == 0 => "Buzz".to_string(),
        n => format!("{}", n)
    }
}

Viktor Merkurev

fennr

3 months ago

3.06ms

86.71kb

pub fn fizz_buzz(num: u32) -> String {
    // TODO: Implement the FizzBuzz challenge
    let num = num % 15;
    match num {
        x if x % 15 == 0 => "FizzBuzz".to_string(),
        x if x % 5 == 0 => "Buzz".to_string(),
        x if x % 3 == 0 => "Fizz".to_string(),
        _ => num.to_string(),
    }
}

Anatma2

3 months ago

4.86ms

86.71kb

pub fn fizz_buzz(n: u32) -> String 
{
if n % 15 == 0 
{
    "FizzBuzz".to_string()
} 
else if n % 3 == 0
{
    "Fizz".to_string()
} 
else if n % 5 == 0 
{
    "Buzz".to_string()
} 
else 
{
    n.to_string()
}
}