Arrays.java

/*  https://codeforces.com/contest/572/problem/A
    tag: #sorting
    find the first element (called j-th) in arrays B that
    greater than the k-th element of arrays A and,
    check if nB - j >= m

*/

import java.util.Scanner;

public class Arrays {

  static String checkPossible() {
    String result = "NO";
    Scanner scanner = new Scanner(System.in);
    int nA = scanner.nextInt();
    int nB = scanner.nextInt();
    int k = scanner.nextInt();
    int m = scanner.nextInt();

    int kThA = 0;
    for (int i = 0; i < nA; i++) {
      int temp = scanner.nextInt();
      if (i == k - 1) {
        kThA = temp;
      }
    }
    for (int i = 0; i < nB; i++) {
      int temp = scanner.nextInt();
      if (temp > kThA) {
        if (nB - i >= m) {
          result = "YES";
        }
        break;
      }
    }

    return result;
  }

  public static void main(String args[]) {
    System.out.println(checkPossible());
  }
}