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multimap implementation.cpp
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multimap implementation.cpp
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#include <iostream>
#include<map>
#include<string>
using namespace std;
int main()
{
//initilize
multimap <char,string>m;
//inserting into map
int n;
cout<<"enter no:";
cin>>n;
for(int i=0;i<n;i++)
{
char ch;
string s;
cin>>ch>>s;
m.insert(make_pair(ch,s));
}
//printing the entire map
for(auto p:m)
cout<<p.first<<" -> "<<p.second<<endl;
//erase the particular key
auto it=m.begin();
m.erase(it);
//lower bound and upper bound
auto it2=m.lower_bound('b');
auto it3=m.upper_bound('d');
for(auto it4=it2;it4!=it3;it4++)
{
cout<<it4->second<<" : "<<it4->first<<endl;
}
//search for an element
auto f=m.find('c');
if(f->second=="cat")
m.erase(f);
for(auto p:m)
cout<<p.first<<" -> "<<p.second<<endl;
return 0;
}