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  1. #include <iostream>
  2. #include <map>
  3.  
  4. using namespace std;
  5. int main ()
  6. {
  7.   multimap<char,float> mymultimap;
  8.   map<char,float> mymap;
  9.  
  10.   ///заполняем multimap
  11.   mymultimap.insert( pair<char,float>('a',0.1) );
  12.   mymultimap.insert( pair<char,float>('b',0.2) );
  13.   mymultimap.insert( pair<char,float>('d',0.4) );
  14.   mymultimap.insert( pair<char,float>('e',0.5) );
  15.  
  16.   ///заполняем map
  17.   mymap.insert( pair<char,float>('f',5.3) );
  18.   mymap.insert( pair<char,float>('g',4.32) );
  19.   mymap.insert( pair<char,float>('i',23.41) );
  20.   mymap.insert( pair<char,float>('r',6.5) );
  21.  
  22.   ///вставляем элементы в multimap
  23.   mymultimap.emplace('c',0.3);
  24.   mymultimap.emplace('b',9.9);
  25.   cout << "mymultimap have:" << endl;
  26.   for (auto it = mymultimap.begin(); it != mymultimap.end(); ++it)
  27.   {
  28.       cout << it->first << " : " << it->second << endl;
  29.   }
  30.  
  31.   auto lowerMap=mymap.lower_bound('g');/// нижняя граница map
  32.   auto upperMap=mymap.upper_bound('i');///верхняя граница map
  33.   auto lowerMultimap=mymultimap.lower_bound('b');/// нижняя граница multimap
  34.   auto upperMultimap=mymultimap.upper_bound('d');///верхняя граница multimap
  35.  
  36.   mymultimap.erase(lowerMultimap,upperMultimap);
  37.   mymap.erase(lowerMap,upperMap);
  38.   auto itMultimap = mymultimap.begin();
  39.   auto itMap = mymap.begin();
  40.   cout << "\nmymultimap have: \t mymap have:" << endl;
  41.   for (itMultimap,itMap; itMultimap != mymultimap.end(); ++itMultimap,++itMap)
  42.   {
  43.       cout << itMultimap->first << " : " << itMultimap->second << "\t\t  " << itMap->first  << " : " << itMap->second << endl;
  44.   }
  45.   return 0;
  46. }
Success #stdin #stdout 0s 4368KB
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Standard input is empty
stdout
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mymultimap have:
a : 0.1
b : 0.2
b : 9.9
c : 0.3
d : 0.4
e : 0.5

mymultimap have: 	 mymap have:
a : 0.1		  f : 5.3
e : 0.5		  r : 6.5
https://ideone.com/8ipctV
language:
C++ (gcc 8.3)
created:
7 years ago
visibility:
public

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