Vector Assignment 2

#include <iostream>
#include <string>
#include <vector>
#include <algorithm>

using namespace std;

int menu()
{
    int input; //users input

    system("CLS");
    cout << "Choose an option: \n";
    cout << "1. Display Games\n";
    cout << "2. Add Game\n";
    cout << "3. Count How Many Games You Have\n";
    cout << "4. Delete A Game\n";
    cout << "5. Sort Ascending\n";
    cout << "6. Sort Descending\n";
    cout << "7. Quit\n";
    cin >> input; //accepts input from user
    return input;
}

int main()
{
    vector<string> gaming = { "guitar hero", "guitar hero 2", "guitar hero 3" }; //current games inside string
    vector<string> ::iterator it;
    bool flag = true;
    int game;
    int deletegame; //deleting game
    string gamingGame;
    char quit;

    do
    {
        game = menu();

        switch (game)
        {
        case 1: //displays games...BLUFF!!!!!!
            system("CLS");
            for (unsigned int i = 0; i < gaming.size(); i++)
            {
                cout << gaming[i] << endl;
            }
            system("PAUSE");
            break;

        case 2: //adds games
            system("CLS");
            cin.ignore();
            cout << "Please enter the gaming name you want to add:\n";
            getline(cin,gamingGame); //gets input with spaces
            gaming.push_back(gamingGame); //adds game to the end of string
            break;

        case 3:
            system("CLS"); //counts how many games are in string
            cout << "You Have " << gaming.size() << " games to game\n";
            system("PAUSE");
            break;

        case 4:
            system("CLS"); //deletes game
            cout << "Which game would you like to delete?\n";
            for (unsigned int i = 0; i < gaming.size(); i++)
            {
                cout << gaming[i] << endl;
            }
            cin.ignore();
            getline(cin, gamingGame); //gets input with spaces
            it = find(gaming.begin(), gaming.end(),gamingGame);
            if (it != gaming.end())
            {
                gaming.erase(it);
            }
            else
            {
                cout << "Game not found.";
            }
            system("PAUSE");
            break;

        case 5: //sorts ascending
            system("CLS");
            sort(gaming.begin(), gaming.end());//sort the vector
            for (vector<string>::iterator it = gaming.begin(); it != gaming.end(); ++it)
            cout << *it << ',' << ' ';
            cout << '\n';
            system("PAUSE");
            break;

        case 6: //sorts decending
            system("CLS");
            sort(gaming.begin(), gaming.end(), greater<>());//sort the vector reverse
            for (vector<string>::iterator it = gaming.begin(); it != gaming.end(); ++it) //loop to sort
                cout << *it << ',' << ' ';
            cout << '\n';
            system("PAUSE");
            break;

        case 7: //quits
            flag = false;
            break;

        default: //if invalid entry
            cout << "invalid entry...try again.\n\n";
            system("PAUSE");
            break;
        }
    } while (flag);
    return 0;
}