Dictionary in C++

map_in_cplusplus.cpp

#include <cstdio>
#include <vector>
#include <iostream>
#include <string.h>
#include <map>

using namespace std;

int main() {
    /* Enter your code here. Read input from STDIN. Print output to STDOUT */   
    string k;
    string q;
    long v;
    int n;
    map <string, long> phone_list;

    cin >> n;
    cin.ignore();

    for(int i=0; i<n; i++)
    {
        cin >> k;
        cin >> v;
        phone_list[k]=v;
    }

    while(cin >> q)
    {
        if (phone_list.count(q)>0) cout << q << "=" << phone_list[q] << endl;
        else cout << "Not found" << endl;
    }

    return 0;
}