[BaekJoon] #10871 X보다 작은 수

이지한 문제

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.IOException;
import java.util.StringTokenizer;

public class Main {
    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        StringTokenizer st = new StringTokenizer(br.readLine());
        int n = Integer.parseInt(st.nextToken());
        int m = Integer.parseInt(st.nextToken());

        st = new StringTokenizer(br.readLine());
        StringBuilder sb = new StringBuilder();
        for (int i = 0; i < n; i++) {
            int x = Integer.parseInt(st.nextToken());
            if (x < m) sb.append(x).append(" ");

        }

        System.out.println(sb);
    }


}