hashing_map_unordered_map.cpp

#include<bits/stdc++.h>
using namespace std;

int main() {

    map<int, int> m;

    m[8] = 2;
    cout<<m[8]<<endl;

    unordered_map<int, int> um;

    um[3] = 6;
    cout<<um[3]<<endl;

    return 0;
}