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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int bitcnt(int a) {
  5. 	int result = 0;
  6. 	while(a) {
  7. 		result++;
  8. 		a >>= 1;
  9. 	}	
  10. 	return result;
  11. }
  12.  
  13. int main() {
  14. 	int a;
  15. 	while(cin >> a) {
  16. 		cout << bitcnt(a) << "\n";
  17. 	}
  18. 	return 0;
  19. }
Success #stdin #stdout 0.01s 5436KB
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https://ideone.com/DwkeWY
language:
C++14 (gcc 8.3)
created:
2 years ago
visibility:
secret

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