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  1. #include<cstdio>
  2. #include<algorithm>
  3. using namespace std;
  4.  
  5. int main() {
  6.     int n; scanf("%d", &n);
  7. 	int p = 0, maxk = 0;
  8. 	for(int i = 0; i < n; i++) {
  9. 		int k, a; scanf("%d %d", &k, &a);
  10. 		maxk = max(k, maxk);
  11. 		int m = 0, s = 1;
  12. 		while(s < a) {
  13. 			s *= 4;
  14. 			m++;
  15. 		}
  16. 		p = max(p, k+m);
  17. 	}
  18. 	if(p == maxk) {
  19. 		p++;
  20. 	}
  21. 	printf("%d\n", p);
  22. }
  23.  
Success #stdin #stdout 0s 2900KB
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stdout 
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https://ideone.com/NORd3X
language:
C++ (gcc 8.3)
created:
11 years ago
visibility:
public

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