looping.rs

pub fn sum_loop(nums: &[i32]) -> i32 {
    let mut s = 0;

    for i in nums {
        s = s + i;
    }

    s
}

pub fn sum_fold(nums: &[i32]) -> i32 {
    nums.into_iter().fold(0, |acc, x| acc + x)
}

pub fn sum_pointfree(nums: &[i32]) -> i32 {
    nums.into_iter().fold(0, std::ops::Add::add)
}