fork download
copy 
  1. #include <algorithm> 	// for std::sort
  2. #include <cctype>		// for std::isupper, std::tolower
  3. #include <iostream>		// for std::cout
  4. #include <string>	    // for std::string
  5. using namespace std;
  6.  
  7. int main() {
  8.     string s{"DCBAdcba"};
  9.  
  10. 	sort( s.begin(), s.end(), [](char x, char y) { 
  11. 	    if (isupper(x)) {
  12. 			if (tolower(x) == y) {
  13.           	    return true;	
  14. 		    }   
  15. 		}
  16. 		return tolower(x) < tolower(y);
  17. 	});
  18.  
  19. 	cout << s << '\n';
  20. }
  21.  
Success #stdin #stdout 0s 3472KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
AaBbCcDd
https://ideone.com/OlYfJZ
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!