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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int main() {
  5. 	// your code goes here
  6.  
  7. 	string str;
  8.  
  9. 	getline(cin,str);
  10.  
  11. 	for(int i=0; i< str.size(); i++) {
  12. 		char ch = str[i];
  13. 		if(ch>='a' && ch <='z'){
  14. 			ch = ch - 'a' + 'A'; // lowercase to uppercase
  15. 		}
  16. 		else {
  17. 			ch = ch - 'A' + 'a'; // uppercase to lowercase
  18. 		}
  19. 		str[i] = ch;
  20. 	}
  21.  
  22. 	cout<<str;
  23.  
  24. 	return 0;
  25. }
Success #stdin #stdout 0s 4296KB
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https://ideone.com/pB5rOk
language:
C++ (gcc 8.3)
created:
3 years ago
visibility:
public

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