largest.rs

fn largest<T: PartialOrd>(list: &[T]) -> &T {
    let mut largest = &list[0];

    for i in list.iter() {
        if largest < i {
            largest = i;
        }
    }

    largest
}

fn main() {
    let v = vec![1, 5, 4, 3, 2];
    println!("Hello, world! {}", largest(&v));
}