Submission #1763987

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Source Code Expand

use std::io;
use std::str::FromStr;

fn main() {
    let stdin = io::stdin();
    let mut buf = String::new();
    stdin.read_line(&mut buf).ok();

    let mut it = buf.split_whitespace().map(|n| usize::from_str(n).unwrap());

    let (n, m) = (it.next().unwrap(), it.next().unwrap());

    let mut v: Vec<u32> = Vec::with_capacity(n);
    for _ in 0..n {
        v.push(0);
    }
    //    println!("{}", v.len());
    for _ in 0..m {
        let mut buf = String::new();
        stdin.read_line(&mut buf).ok();
        let mut it = buf.split_whitespace().map(|n| usize::from_str(n).unwrap());
        let (a, b) = (it.next().unwrap(), it.next().unwrap());
        v[a - 1] += 1;
        v[b - 1] += 1;
    }
    //    println!("{}", v.len());

    for i in 0..v.len() {
        println!("{}", v[i]);
    }
}

Submission Info

Judge Result