题解 | #输入n个整数，输出其中最小的k个#

use std::io;
fn main() {
    let mut s = String::new();
    io::stdin().read_line(&mut s).expect("Failed to read line");
    let n_k = s.trim().split(" ").collect::<Vec<&str>>();
    let k = n_k[1].parse::<usize>().unwrap();
    s.clear();
    io::stdin().read_line(&mut s).expect("Failed to read line");
    let mut nums = vec![];
    for i in s.trim().split(" ").collect::<Vec<&str>>() {
        nums.push(i.parse::<u32>().unwrap());
    }
    nums.sort();
    for i in 0..k {
        print!("{} ",nums[i]);
    }   
}