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  1. import java.util.Scanner;
  2.  
  3. public class Main {
  4.     public static void main(String[] args) {
  5.         Scanner in = new Scanner(System.in);
  6.         int T = in.nextInt();
  7.         while (T-- > 0) {
  8.             int N = in.nextInt();
  9.             int ones = Integer.bitCount(N);
  10.             int result = (1 << ones) - 1;
  11.             System.out.println(result);
  12.         }
  13.         in.close();
  14.     }
  15. }
  16.  
Success #stdin #stdout 0.14s 56676KB
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3
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3
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https://ideone.com/mrGpdV
language:
Java (HotSpot 12)
created:
22 days ago
visibility:
public

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