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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int main() {
  5. 	int t,n,x;
  6. 	cin >> t;
  7. 	while(t--){
  8. 		cin >> n;
  9. 		string e,g;
  10. 		cin >> e >> g;
  11. 		int r = 0;
  12. 		for(int i=0;i<n;i++){
  13. 			if(g[i] == '1'){
  14. 				if(i>0 && i<n-1){
  15. 					if(e[i-1] == '1')
  16. 						r++,e[i-1] = 'c';
  17. 					else if(e[i] == '0')
  18. 						r++,e[i] = 'c';
  19. 					else if(e[i+1] == '1')
  20. 						r++,e[i+1] = 'c';
  21. 				}else{ 
  22. 					if(i == 0){
  23. 						if(e[i] == '0')
  24. 							r++,e[i] = 'c';
  25. 						else if(e[i+1] == '1')
  26. 							r++,e[i+1] = 'c';
  27. 					}else{
  28. 						if(e[i-1] == '1')
  29. 							r++,e[i-1] = 'c';
  30. 						else if(e[i] == '0')
  31. 							r++,e[i] = 'c';
  32. 					}
  33. 				}
  34. 			}
  35. 		}
  36. 		cout << r << endl;
  37.  
  38.  
  39. 	}
  40. 	return 0;
  41. }
Success #stdin #stdout 0s 5284KB
comments (?)
stdin 
2
4
0111
1111
4
0110
1010
stdout 
3
2
https://ideone.com/Huc095
language:
C++ (gcc 8.3)
created:
1 day ago
visibility:
public

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