65maps.cpp

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

// MAP IS AN ASSOCIATIVE CONTAINER

int main()
{
    map<string, int> marks;
    map<string, int> payment;
    // MAP TAKES TWO TYPES OF DATA TYPES AS IT MAPS ON DATA TO ANOTHER DATA, i.e. BINDS A KEY TO THE VALUE

    // Method to insert values...
    marks["Vasu"] = 45;
    marks["Aenansh"] = 50;
    marks["Dev"] = 34;

    marks.insert({"Singh", 12});
    marks.insert({{"Ramu", 9}, {"Kaka", 27}});

    map<string, int>::iterator itr;
    for (itr = marks.begin(); itr != marks.end(); itr++)
    {
        cout << (*itr).first << " " << itr->second << endl;
    }
    cout<<"The size of the marks map is : "<<marks.size()<<endl;
    cout<<"Maximum size to accomodate the data is : "<<marks.max_size()<<endl;
    cout <<"1 for empty container, 0 for full : "<<marks.empty()<<" / "<<payment.empty()<<endl;
    return 0;
}