Submission #2107492

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Source Code Expand

use std::io::BufRead;

fn main() {
    let stdin = std::io::stdin();
    let n: usize = stdin.lock().lines().next().unwrap().unwrap()
        .parse().unwrap();
    let line = stdin.lock().lines().next().unwrap().unwrap();
    let mut length: Vec<u32> = line.split(' ').map(|x| x.parse().unwrap())
        .take(n * 2).collect();
    length.sort();
    let sum: u32 = length.chunks(2).map(|pair| pair[0]).sum();
    println!("{}", sum);
}

Submission Info

Judge Result