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  1. 	#include <iostream>
  2. 	#include <cstdio>
  3. 	#include <math.h>
  4.  
  5. 	using namespace std;
  6.  
  7. 	int main()
  8. 	{
  9. 		int c;
  10. 		int n;
  11.  
  12. 		scanf("%d", &n);	//n = 64
  13. 		c = (log(n) / log(2));
  14. 		cout << c << endl;	//OUTPUT = 5
  15.  
  16. 		n = 64;
  17. 		c = (log(n) / log(2));
  18. 		cout << c << endl;	//OUTPUT = 6
  19.  
  20. 		return 0;
  21. 	}
Success #stdin #stdout 0s 2732KB
comments (?)
stdin
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64
stdout
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5
6
https://ideone.com/UjYFQd
language:
C++ 4.3.2 (gcc-4.3.2)
created:
10 years ago
visibility:
public

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