Function main

lcp06-na-ying-bi.rs:13–17

()

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fn main() {
    let coins = vec!(4,2,1);
    let res = min_count(coins);
    println!("{:?}", res);
}

pub fn min_count(coins: Vec<i32>) -> i32 {
    coins.into_iter().map(|e|e/2+e%2).sum()