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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int main()
  5. {
  6. 	int t;
  7. 	cin >> t;
  8. 	while(t--)
  9. 	{
  10. 		int n;
  11. 		cin >> n;
  12. 		string s;
  13. 		cin >> s;
  14. 		map<char, int> m;
  15. 		for(int i=0;i<n;i++)
  16. 		{
  17. 			m[s[i]]++;
  18. 		}
  19. 		int min=10,max=0;
  20. 		char minval,maxval;
  21. 		for(auto x : m)
  22. 		{
  23. 			cout << x.second << endl << endl;
  24. 			if(min>x.second)
  25. 			{
  26. 				min = x.second;
  27. 				minval = x.first;
  28. 			}
  29. 			if(max<=x.second)
  30. 			{
  31. 				max = x.second;
  32. 				maxval = x.first;
  33. 			}
  34. 		}
  35. 		for(int i=0;i<n;i++)
  36. 		{
  37. 			if(s[i]==minval)
  38. 			{
  39. 				s[i]=maxval;
  40. 				break;
  41. 			}
  42. 		}
  43. 		cout << s << endl;
  44. 	}
  45. }
Success #stdin #stdout 0s 5316KB
comments (?)
stdin
copy 
6
3
abc
4
xyyx
8
alphabet
1
k
10
aabbccddee
6
ttbddq
stdout
copy 
1

1

1

cbc
2

2

yyyx
2

1

1

1

1

1

1

alphaaet
1

k
2

2

2

2

2

eabbccddee
1

2

1

2

tttddq
https://ideone.com/b5T0FS
language:
C++ (gcc 8.3)
created:
1 day ago
visibility:
public

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