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  1. #include <bits/stdc++.h>
  2.  
  3. using namespace std;
  4.  
  5. const int MX = 100000;
  6.  
  7. char a[MX + 1], b[MX + 1];
  8.  
  9. int main() {
  10. 	int T;
  11. 	ignore = scanf("%d", &T);
  12. 	while (T--) {
  13. 		ignore = scanf("%s %s", a, b);
  14.  
  15. 		int n = strlen(a);
  16. 		int m = strlen(b);
  17.  
  18. 		if (b[0] == '0') {
  19. 			printf("%d\n", 0);
  20. 			continue;
  21. 		}
  22.  
  23. 		int ans = 1;
  24. 		for (int i = n - 1, j = m - 1, k = 0; i >= 0 || j >= 0; i--, j--) {
  25. 			int s = (i >= 0 ? a[i] - '0' : 0) + (j >= 0 ? b[j] - '0' : 0);
  26. 			if (s == 1) {
  27. 				if (k > 0) k++;
  28. 			}
  29. 			else {
  30. 				k = s / 2;
  31. 			}
  32.  
  33. 			ans = max(ans, k + 1);
  34. 		}
  35.  
  36. 		printf("%d\n", ans);
  37. 	}
  38.  
  39. 	return 0;
  40. }
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https://ideone.com/ifX1DF
language:
C++14 (gcc 8.3)
created:
4 years ago
visibility:
secret

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