X보다 작은 수 (10871)

Java 11

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 x = Integer.parseInt(st.nextToken());

        StringBuilder sb = new StringBuilder();
        st = new StringTokenizer(br.readLine(), " ");

        for (int i=0; i<n; i++) {
            int value = Integer.parseInt(st.nextToken());
            if (value < x) {
                sb.append(value).append(" ");
            }
        }
        System.out.println(sb);
    }
}