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  1. import java.util.*;
  2. import java.lang.*;
  3. import java.io.*;
  4.  
  5. class Ideone
  6. {
  7.  
  8. 	public static void main (String[] args) throws java.lang.Exception
  9. 	{
  10. 		Scanner scan = new Scanner(System.in);
  11. 		long a = scan.nextLong();
  12. 		long b = scan.nextLong();
  13.  
  14. 		long res = 0;
  15. 		for (int bit = 32; bit >= 0; --bit) {
  16. 			long bita = a & (1L << bit);
  17. 			long bitb = b & (1L << bit);
  18. 			if (bita != bitb) break;
  19. 			res |= bita;
  20. 		}
  21. 		System.out.println(res);
  22. 	}	
  23. }
Success #stdin #stdout 0.06s 4386816KB
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4009754624 4026531839
stdout
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4009754624
https://ideone.com/pkrUtV
language:
Java (HotSpot 12)
created:
8 years ago
visibility:
public

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