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  1. #include <algorithm>
  2. #include <iostream>
  3. #include <string>
  4. #include <sstream>
  5. #include <vector>
  6.  
  7. int main() {
  8.  
  9. 	std::vector<int> v = { 1, 2, 3, 4, 10, 20, 30, 40 };
  10.  
  11. 	std::sort( v.begin(), v.end(), [](int l, int r)
  12. 		{ 
  13. 			std::stringstream ss;
  14. 			ss << l;
  15. 			std::string ls = ss.str();
  16. 			ss.str("");
  17. 			ss << r;
  18. 			return ls < ss.str();
  19. 		} );
  20.  
  21. 	for( const int i : v )
  22. 	{
  23. 		std::cout << i << " ";
  24. 	}
  25. 	std::cout << '\n';
  26.  
  27. 	return 0;
  28. }
Success #stdin #stdout 0s 3496KB
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stdin
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Standard input is empty
stdout
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1 10 2 20 3 30 4 40
https://ideone.com/PIy8mJ
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
secret

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