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  1. #include <iostream>
  2. #include <map>
  3. using namespace std;
  4.  
  5. void printMap(const std::map<int, double>& m)
  6. {
  7. 	for (auto kv : m)
  8. 	{
  9. 		std::cout << '{' << kv.first << ", " << kv.second << '}';
  10. 	}
  11. 	std::cout << '\n';
  12. }
  13.  
  14. int main() {
  15. 	std::cout << "erase by iterator:\n";
  16. 	std::map<int, double> m1 = { { 1, 1.1 }, { 2, 2.2 }, { 3, 3.3 } };
  17. 	printMap(m1);
  18. 	m1.erase(m1.find(2));
  19. 	printMap(m1);
  20.  
  21. 	std::cout << "erase by key:\n";
  22. 	std::map<int, double> m2 = { { 1, 1.1 }, { 2, 2.2 }, { 3, 3.3 } };
  23. 	printMap(m2);
  24. 	m2.erase(2);
  25. 	printMap(m2);
  26. 	return 0;
  27. }
Success #stdin #stdout 0s 3432KB
comments (?)
stdin 
Standard input is empty
stdout 
erase by iterator:
{1, 1.1}{2, 2.2}{3, 3.3}
{1, 1.1}{3, 3.3}
erase by key:
{1, 1.1}{2, 2.2}{3, 3.3}
{1, 1.1}{3, 3.3}
https://ideone.com/YWocN7
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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