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  1. #include <algorithm>
  2. #include <iostream>
  3. #include <map>
  4. using namespace std;
  5.  
  6. int main() {
  7. 	const multimap<unsigned int, int> x = {{1U, 13}, {2U, 'a'}, {1U, 0}};
  8. 	auto it = x.cbegin();
  9.  
  10. 	while(it != x.cend()) {
  11. 		auto end = x.upper_bound(it->first);
  12.  
  13. 		cout << it->first << "\n\t";
  14. 		for_each(it, end, [](const auto& i){ cout << i.second << '\t'; });
  15. 		cout << endl;
  16. 		it = end;
  17. 	}
  18. }
Success #stdin #stdout 0s 3460KB
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stdin
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Standard input is empty
stdout
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1
	13	0	
2
	97
https://ideone.com/We9DxD
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

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