map.cpp

#include<iostream>
#include<map>
using namespace std;

//stored the data in key value pair

int main(){
    map<int,string>m;
    //1 is key and Ajay is value
    m[1]="Ajay";
    m[2]="Nanjay";
    m[4]="Manjay";

    m.insert({5,"antika"});
    for(auto i:m){
        //expression can not be used as a function
        //i.first() dont write this way
        cout<<i.first<<" "<<i.second<<" "<<endl;
    }
    cout<<"find the element "<<m.count(-13)<<endl;       //count return 0 or 1(0-->variable doesnot exist)
    m.erase(5);
    cout<<"after erase"<<endl;
    for(auto i:m){
        cout<<i.first<<" "<<i.second<<" "<<endl;
            }

    //find the element from map
    auto findElement=m.find(4);
    for(auto i=findElement;i!=m.end();i++){
        cout<<(*i).first<<" "<<(*i).second<<endl;
    }
}