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  1. import java.util.*;
  2.  
  3. public class Main {
  4. public static void main(String[] args) {
  5. int n = 9;
  6. int[] a = {1, 3, 3, 4, 1, 4, 4, 4, 4};
  7. int[] b = new int[10];
  8.  
  9. // Calculate frequencies
  10. for (int i = 0; i < n; i++) {
  11. int x = a[i];
  12. b[x] = b[x] + 1;
  13. }
  14.  
  15. int[] queries = {3, 4, 1};
  16. int q = 3;
  17.  
  18. // Output frequencies
  19. for (int j = 0; j < q; j++) {
  20. int x = queries[j];
  21. System.out.print(b[x] + " ");
  22. }
  23. }
  24. }
  25.  
Success #stdin #stdout 0.12s 55644KB
stdin
Standard input is empty
stdout
2 5 2