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  1. #include <iostream>
  2. #include <vector>
  3. using namespace std;
  4.  
  5. int main() {
  6. 	std::vector<int> tt;
  7. 	tt.emplace_back(1);
  8. 	std::vector<std::vector<int>> maintt;
  9. 	auto itr = maintt.emplace(maintt.end(),tt);
  10. 	itr->emplace_back(10);
  11. 	itr->emplace_back(20);
  12. 	itr->emplace_back(30);
  13. 	itr->emplace_back(40);
  14. 	itr->emplace_back(50);
  15. 	std::cout<<"Hello ";
  16. 	for(auto& item : maintt ){
  17. 		for(auto& item2 : item) {
  18. 			std::cout<<" "<<item2<<" ";
  19. 		}
  20.  
  21. 	}
  22.  
  23. 	// your code goes here
  24. 	return 0;
  25. }
Success #stdin #stdout 0s 5312KB
comments (?)
stdin 
Standard input is empty
stdout 
Hello  1  10  20  30  40  50
https://ideone.com/B6Nq2v
language:
C++ (gcc 8.3)
created:
18 days ago
visibility:
public

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