stream复习 | #输入n个整数，输出其中最小的k个#

import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        ArrayList<Integer> ts = new ArrayList<>();
        int num = in.nextInt(), k = in.nextInt();
        for(int i=0;i<num;i++) ts.add(in.nextInt());
        ts.stream().sorted().limit(k).forEach(i -> System.out.print(i+" "));
    }
}

ts.stream().sorted().limit(k).forEach(i -> System.out.print(i+" "));