题解 | #明明的随机数#

use std::io::{self, *};

fn main() {
    let stdin = io::stdin();
    let mut lines = stdin.lock().lines();
    let mut a: Vec<u32> = Vec::new();
    let n:u32 = lines.next().unwrap().expect("parse error").parse::<u32>().unwrap_or(0);
    while let Some(ii) = lines.next() {
        let i = ii.unwrap().parse::<u32>().unwrap_or(0);
        a.push(i);
    }
    a.sort();
    a.dedup();
    for i in 0..a.len() {
        print!("{}\n", a[i])
    }
}