Maps(STL) in C++

maps_stl.cpp

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

int main(){
    map<int,string> m;
    
    m.insert(pair<int,string>(1,"Apple"));
    m.insert(pair<int,string>(2,"Banana"));
    m.insert(pair<int,string>(3,"Litchi"));
    
    map<int,string>::iterator itr;
    for(itr=m.begin();itr!=m.end();itr++){
        cout << itr->first << " " << itr->second;
        cout << endl;
    }
    
    map<int,string>::iterator itr1;
    itr1=m.find(3);
    cout << "Value found is : " << itr1->second << endl;
    
}