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  1. #include <iostream>
  2. #include <vector>
  3. #include <string>
  4. #include <iterator>
  5. #include <algorithm>
  6. #include <sstream>
  7. #include <map>
  8.  
  9. using namespace std;
  10.  
  11. int main() {
  12. 	map<string, vector<string>> m {
  13. 		{"a", {"1", "2"}},
  14. 		{"b", {"1", "2"}},
  15. 		{"b", {"1", "2"}},
  16. 	};
  17.  
  18. 	transform(begin(m), end(m), ostream_iterator<string>(cout), [](auto& p){
  19. 	  	stringstream ss;
  20. 	  	ss << p.first << ", {";
  21. 	  	bool first = true;
  22. 	  	for (auto& s : p.second)
  23. 	  	{
  24. 	  	  ss << (first ? "" : ", ") << s;
  25. 	  	  first = false;
  26. 	  	}
  27. 	  	ss << "}\n";
  28. 	  	return ss.str();
  29. 	});
  30.  
  31. 	return 0;
  32. }
Success #stdin #stdout 0s 3476KB
comments (?)
stdin 
Standard input is empty
stdout 
a, {1, 2}
b, {1, 2}
https://ideone.com/ppNQzE
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

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