// Program4LeeBell.cpp : Defines the entry point for the console application.
// lee bell 10/21/17

#include "stdafx.h"
#include <iostream>
#include <cstdlib>
#include <time.h>
using namespace std;


int main()
{
    int x;
    int y;
    int response;







    cout << "Please enter 1 for Addition" << endl;
    cout << "Please enter 2 for Subtraction" << endl;
    cout << "Please enter 3 for Multiplication" << endl;
    cout << "Please enter 4 for Random Problems" << endl;
    cout << "Please enter - 1 to quit" << endl;
    cin >> response;
    while (response >= 1 && response <= 4)
    {

        switch (response)
            case 1:
            { x = rand() % 100;
            y = rand() % 100;
            cout << "How much is " << x << " plus " << y << " (-1 to end)" << endl;
            cin >> response;
            while (response != -1 && response != x + y)
            {
                cout << "No. Please try again." << endl << "? ";
                cin >> response;
            }
            if (response == x + y)
                cout << "Very good!" << endl << endl;
            }
            cout << "That's all for now. Bye." << endl;
            break;
        switch (response)
        case 2:
            {
            x = rand() % 100;
            y = rand() % 100;
            cout << "How much is " << x << " mius " << y << " ( -1 to end) " << endl;
            cin >> response;
            while (response != -1 && response != x - y)
            {
                cout << "No. Please try again." << endl << "? ";
                cin >> response;
            }
            if (response == x - y)
                cout << "Very good!" << endl << endl;
            }
            cout << "That's all for now. Bye." << endl;
        switch (response)
        case 3:
            {
            x = rand() % 100;
            y = rand() % 100;
            cout << " How much is " << x << " times " << y << " (-1 to end)" << endl;
            cin >> response;
            while (response != -1 && response != x * y)
            {
                cout << "No. Please try again." << endl << "? ";
                cin >> response;
            }
            if (response == x * y)
                cout << "Very good!" << endl << endl;
            }
            cout << "That's all for now. Bye." << endl;
            break;
        switch (response)
        case 4:
            {
            x = { 1 + rand() % 3 };
            y = { 1 + rand() % 3 };
            cout << "How much is " << x << " " << endl;


        while (response != -1 && response != x * y)
        {
            cout << "No. Please try again." << endl << "? ";
            cin >> response;
        }
        if (response == x * y)
            cout << "Very good!" << endl << endl;
    }
    cout << "That's all for now. Bye." << endl;
}









    system("PAUSE");
    return 0;
}