Q.8

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

unordered_map<string, int> users;

int solve(string s) {
    users[s]++;
    return users[s];
}

int main()
{
    while (true) {
        string name;
        cout << "Enter your name: \n";
        cin >> name;
        cout << "There are " << solve(name) << " users with the same name, including you\n";
    }
    return 0;
}