Inserting pairs of object into map : pair « Map Multimap « C++

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C++ » Map Multimap » pairScreenshots 
Inserting pairs of object into map
   
#include <map> 
#include <iostream> 
#include <string> 

using namespace std; 

int main() 

  map<string, double> option; 

  option["r"0.1;       
  option["s"0.2;     
  option["K"1.0;       
  option["T"0.7;       
  option["S"1.3;       

  cout << "Size of map: " << option.size() << endl;; 

  map<string, double>::iterator i = option.begin()

  while (i != option.end()) 
  
    cout << "Element pair [" << (*i).first << "," << (*i).second << "]"
    i++; 
  

  return 0

}
  
    
    
  
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