#![allow(dead_code, deprecated, unused_variables, unused_mut)]
fn main() {
    let numbers = [1, 2, 3, 4, 5];
    let mut result = 0;
    for i in &numbers {
        result = result + i;
    }
    let result2 = numbers.iter().fold(0, |acc, &x| acc + x);
    assert_eq!(result, result2);
}