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  1. #include <iostream>
  2. #include <map>
  3.  
  4. using namespace std;
  5. int main ()
  6. {
  7.   multimap<float,string> myMultimapExample;
  8.   map<string,float> myMapExample;
  9.  
  10.   /// первый вариант
  11.   myMapExample.insert ( pair<string,float>("Desk",0.01) );
  12.   myMapExample.insert ( pair<string,float>("Table",0.02) );
  13.   myMultimapExample.insert ( pair<float,string>(0.01,"Desk") );
  14.   myMultimapExample.insert ( pair<float,string>(0.01,"Table") );
  15.  
  16.   /// второй вариант
  17.   multimap<float,string>::iterator itMultimapExample = myMultimapExample.begin();///итератор указывает на начало multimap
  18.   map<string,float>::iterator itMapExample = myMapExample.begin();
  19.   myMapExample.insert ( itMapExample, pair<string,float>("Pencil",0.03) );
  20.   myMultimapExample.insert ( itMultimapExample, pair<float,string>(0.03,"Pencil") );
  21.  
  22.   /// третий вариант
  23.   map<string,float> myMapExampleDifferent;
  24.   multimap<float,string> myMultimapExampleDifferent;
  25.   myMapExampleDifferent.insert( myMapExample.begin(),myMapExample.find("Table") );
  26.   myMultimapExampleDifferent.insert( myMultimapExample.begin(),myMultimapExample.find(0.03) );
  27.  
  28.   /// вывод на экран map и multimap:
  29.   cout << "myMapExample: \t\t myMultimapExample:\n";
  30.   for ( itMapExample = myMapExample.begin(),itMultimapExample = myMultimapExample.begin(); itMapExample != myMapExample.end(); ++itMapExample,++itMultimapExample)
  31.   {
  32.       cout << itMapExample->first << " : " << itMapExample->second << "\t\t   " << itMultimapExample->first << " : " << itMultimapExample->second << endl;
  33.   }
  34.  
  35.   auto itMapExampleDif = myMapExampleDifferent.begin();
  36.   auto itMultimapExampleDif = myMultimapExampleDifferent.begin();
  37.   cout << "\nmyMapExampleDifferent: \t myMultimapExampleDifferent:\n";
  38.   for ( itMapExampleDif,itMultimapExampleDif; itMapExampleDif != myMapExampleDifferent.end(); ++itMapExampleDif,++itMultimapExampleDif)
  39.   {
  40.       cout << itMapExampleDif->first << " : " << itMapExampleDif->second << "\t\t    " << itMultimapExampleDif->first << " : " << itMultimapExampleDif->second << '\n';
  41.   }
  42.  
  43.   return 0;
  44. }
Success #stdin #stdout 0s 4316KB
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stdin
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Standard input is empty
stdout
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myMapExample: 		 myMultimapExample:
Desk : 0.01		   0.01 : Desk
Pencil : 0.03		   0.01 : Table
Table : 0.02		   0.03 : Pencil

myMapExampleDifferent: 	 myMultimapExampleDifferent:
Desk : 0.01		    0.01 : Desk
Pencil : 0.03		    0.01 : Table
https://ideone.com/Z4gjBL
language:
C++ (gcc 8.3)
created:
7 years ago
visibility:
public

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