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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5. 	int n;
  6. 	cin>>n;
  7. 	long data[n] ;
  8. 	for(int i = 0; i < n; i++) {
  9. 		cin>>data[i];
  10. 	}
  11. 	long res = 0;
  12. 	int count = 0;
  13. 	for(int i = sizeof(int) * 8; i >= 0; i--) {
  14. 		count = 0;
  15. 		for (int j = 0; j < n; j++) {
  16. 			if ((data[j] & (res | (1 << i))) == (res | (1 << i))) {
  17. 				count++;
  18. 			}
  19. 			if (count >= 2) {
  20. 				res |= (1 << i);	
  21. 				break;
  22. 			}
  23. 		}
  24. 	}
  25. 	cout<<res;
  26. 	return 0;
  27. }
Success #stdin #stdout 0s 3344KB
comments (?)
stdin
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4
2
4
8
10
stdout
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8
https://ideone.com/W1LlV0
and question from codechef
language:
C++ (gcc 8.3)
created:
9 years ago
visibility:
public

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