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  1. #include <iostream>
  2. #include <math.h>
  3. using namespace std;
  4.  
  5. int main(){
  6. 	unsigned long in_val, tmp_val;
  7. 	cin >> in_val;
  8. 	tmp_val = in_val;
  9. 	unsigned long power;
  10. 	power = pow(2, floor(log2(in_val)) + 1);
  11. 	tmp_val = in_val;
  12. 	unsigned long max_val = in_val;
  13. 	do{
  14. 		in_val = in_val << 1;
  15. 		in_val = in_val % power + (in_val >= power ? 1 : 0);
  16. 		if(max_val < in_val){
  17. 			max_val = in_val;
  18. 		}
  19. 	}while(tmp_val != in_val);
  20. 	cout << max_val << endl;
  21.  
  22. 	return 0;
  23. }
Success #stdin #stdout 0s 4308KB
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https://ideone.com/y0NF8N
language:
C++14 (gcc 8.3)
created:
6 years ago
visibility:
public

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