Arrays are a fundamental data structure in Rust that allow you to store a fixed-size collection of elements of the same type. A common operation is to calculate the sum of all elements in an array.
In this challenge, you will implement a function to calculate the sum of elements in an array of integers i32.
You need to implement the function sum_array(arr: &[i32]) -> i32 that takes a slice of integers and returns the sum of all elements.
sum_array function should return the sum of all elements in the array.let arr = [1, 2, 3, 4, 5];
let sum = sum_array(&arr);
assert_eq!(sum, 15); // 1 + 2 + 3 + 4 + 5 = 15.iter() method to iterate over the elements of the array..sum() method to calculate the sum of the elements.pub fn sum_array(arr: &[i32]) -> i32 { // TODO: Implement the function here return arr.iter().sum();}pub fn sum_array(arr: &[i32]) -> i32 { // TODO: Implement the function here arr.iter().sum()}pub fn sum_array(arr: &[i32]) -> i32 { return arr.iter().sum();}pub fn sum_array(arr: &[i32]) -> i32 { // TODO: Implement the function here let mut sum: i32 = 0; for i in arr { sum += i; } return sum;}pub fn sum_array(arr: &[i32]) -> i32 { // TODO: Implement the function here // 1. Traditional // let mut total : i32 = 0; // for a in arr{ // total += a; // } // 2. Functional let total = arr.iter().sum(); return total;}pub fn sum_array(arr: &[i32]) -> i32 { // TODO: Implement the function here arr.iter().sum()}pub fn sum_array(arr: &[i32]) -> i32 { // TODO: Implement the function here return arr.iter().sum();}pub fn sum_array(arr: &[i32]) -> i32 { // TODO: Implement the function here arr.iter().sum()}pub fn sum_array(arr: &[i32]) -> i32 { // TODO: Implement the function here arr.iter().sum()}pub fn sum_array(arr: &[i32]) -> i32 { // TODO: Implement the function here arr.iter().sum()}pub fn sum_array(arr: &[i32]) -> i32 { // TODO: Implement the function here return arr.iter().sum();}pub fn sum_array(arr: &[i32]) -> i32 { // TODO: Implement the function here let mut s = 0; for i in arr.iter() { s +=i; } s}pub fn sum_array(arr: &[i32]) -> i32 { // TODO: Implement the function here arr.iter().sum()}pub fn sum_array(arr: &[i32]) -> i32 { // TODO: Implement the function here let total = arr.iter().sum(); total}pub fn sum_array(arr: &[i32]) -> i32 { // TODO: Implement the function here arr.iter().sum()}pub fn sum_array(arr: &[i32]) -> i32 { // TODO: Implement the function here arr.iter().sum()}pub fn sum_array(arr: &[i32]) -> i32 { // TODO: Implement the function here arr.iter().sum()}pub fn sum_array(arr: &[i32]) -> i32 { // TODO: Implement the function here arr.iter().sum()}pub fn sum_array(arr: &[i32]) -> i32 { // TODO: Implement the function here arr.iter().sum()}pub fn sum_array(arr: &[i32]) -> i32 { let sum: i32 = arr.into_iter().fold(0, |acc, e| acc + e); sum}pub fn sum_array(arr: &[i32]) -> i32 { // TODO: Implement the function here arr.iter().sum()}pub fn sum_array(arr: &[i32]) -> i32 { // TODO: Implement the function here arr.iter().sum()}pub fn sum_array(arr: &[i32]) -> i32 { // TODO: Implement the function here arr.iter().sum()}pub fn sum_array(arr: &[i32]) -> i32 { // TODO: Implement the function here arr.iter().sum()}pub fn sum_array(arr: &[i32]) -> i32 { // TODO: Implement the function here return arr.iter().sum();}pub fn sum_array(arr: &[i32]) -> i32 { // TODO: Implement the function here arr.iter().sum()}pub fn sum_array(arr: &[i32]) -> i32 { arr.iter().sum()}pub fn sum_array(arr: &[i32]) -> i32 { // TODO: Implement the function here arr.iter().sum()}pub fn sum_array(arr: &[i32]) -> i32 { // TODO: Implement the function here arr.iter().sum()}pub fn sum_array(arr: &[i32]) -> i32 { // TODO: Implement the function here arr.iter().sum()}pub fn sum_array(arr: &[i32]) -> i32 { let mut sum = 0; for item in arr { sum += item; println!("{}", item) } sum}pub fn sum_array(arr: &[i32]) -> i32 { let mut sum = 0; for item in arr.iter() { sum += item; println!("{}", item) } sum}pub fn sum_array(arr: &[i32]) -> i32 { let mut sum = 0; for item in arr { sum += item; println!("{}", item) } sum}pub fn sum_array(arr: &[i32]) -> i32 { let mut sum = 0; for item in arr { sum += item; println!("{}", item) } sum}pub fn sum_array(arr: &[i32]) -> i32 { let mut sum = 0; for item in arr.iter() { sum += item; println!("{}", item) } sum}pub fn sum_array(arr: &[i32]) -> i32 { // TODO: Implement the function here arr. iter(). sum()}pub fn sum_array(arr: &[i32]) -> i32 { // TODO: Implement the function here arr.iter().sum()}pub fn sum_array(arr: &[i32]) -> i32 { // TODO: Implement the function here arr.iter().sum() }pub fn sum_array(arr: &[i32]) -> i32 { // TODO: Implement the function here arr.iter().sum()}pub fn sum_array(arr: &[i32]) -> i32 { // TODO: Implement the function here return arr.iter().sum();}pub fn sum_array(arr: &[i32]) -> i32 { // TODO: Implement the function here arr.iter().sum()}pub fn sum_array(arr: &[i32]) -> i32 { // TODO: Implement the function here arr. iter(). sum()}pub fn sum_array(arr: &[i32]) -> i32 { // TODO: Implement the function here arr.iter().sum()}pub fn sum_array(arr: &[i32]) -> i32 { // TODO: Implement the function here arr.iter().sum()}pub fn sum_array(arr: &[i32]) -> i32 { // TODO: Implement the function here arr.iter().sum()}