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  1. #include <iostream>
  2. #include <unordered_map>
  3. using namespace std;
  4.  
  5. int main() {
  6. 	unordered_map<string,double> mapA = {{"sugar",0.1},{"salt",0.2}};
  7.     unordered_map<string,double> mapB = {{"sugar",0.3},{"pepper",0.4}};
  8.     mapA.insert(mapB.begin(), mapB.end());
  9.     for (auto &i : mapA) {
  10.     	cout << i.first << " " << i.second << endl;
  11.     }
  12. 	return 0;
  13. }
Success #stdin #stdout 0s 3416KB
comments (?)
stdin 
Standard input is empty
stdout 
pepper 0.4
salt 0.2
sugar 0.1
https://ideone.com/o2agrm
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

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