#include <iostream>
#include<map>
using namespace std;
int main() {
    map<int,string> m;
    m[1]="hi";
    m[2]="hello";
    m[3]="thanks";
    m[4]="namasthe";
    for(auto i: m){
        cout<<i.first<<" "<<i.second<<"\n";
    }
    //other way to print map elements 
    cout<<"\n";
    for(auto it=m.begin();it!=m.end();it++){
        cout<<(*it).first<<" "<<(*it).second<<"\n";
    }
    auto itr=m.find(3);
    cout<<"\n"<<(*itr).first<<" "<<(*itr).second<<"\n";
    m.erase(itr);
    cout<<"\n";
    for(auto it=m.begin();it!=m.end();it++){
        cout<<(*it).first<<" "<<(*it).second<<"\n";
    }
    m.insert({6,"inserted"});
    cout<<"\n";
    for(auto it=m.begin();it!=m.end();it++){
        cout<<(*it).first<<" "<<(*it).second<<"\n";
    }
    cout<<"\nSize of map is:"<<m.size()<<"\n";
    // m.clear();
    // cout<<"\ncleared";
    // for(auto it=m.begin();it!=m.end();it++){
    //     cout<<(*it).first<<" "<<(*it).second<<"\n";
    // }
    return 0;
}