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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int main() {
  5. 	// your code goes here
  6. 	int t;
  7. 	cin>>t;
  8. 	while(t--){
  9. 		int n;
  10. 		cin>>n;
  11. 		// vector<string>v;
  12. 		vector<vector<char>>v(n,vector<char>(n));
  13. 		for(int i=0;i<n;i++){
  14. 		string s;
  15. 		cin>>s;
  16. 		sort(s.begin(),s.end());
  17. 		// v.push
  18. 		for(int j=0;j<s.size();j++){
  19. 			v[i][j]=s[j];
  20. 		}
  21. 		}
  22. 		string s1=" ",s2=" ";
  23. 		int flag=1;
  24. 		for(int i=0;i<v.size();i++){
  25. 			for(int j=0;j<v[0].size();j++){
  26. 				s1+=v[j][i];
  27. 			}
  28. 			s2=s1;
  29. 			//cout<<s2<<"\n";
  30. 			sort(s1.begin(),s1.end());
  31. 			//cout<<s1<<"\n";
  32. 			if(s1!=s2){
  33. 			flag=0;
  34. 			break;
  35. 			}
  36. 			s1=" ",s2=" ";
  37. 		}
  38. 	if(flag==1)
  39. 	cout<<"YES"<<"\n";
  40. 	else
  41. 	cout<<"NO"<<"\n";
  42. 	}
  43. 	return 0;
  44. }
Success #stdin #stdout 0s 5304KB
comments (?)
stdin
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1       
5       
ebacd
fghij
olmkn
trpqs
xywuv
stdout
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YES
https://ideone.com/j9Y9Rm
language:
C++ (gcc 8.3)
created:
10 days ago
visibility:
public

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