#include <iostream>
#include <cstdlib>
#include <ctime>
#include <cstdio>
#include <random>
#include <set>
// These three "#include" statements are for the rand() code.
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
using namespace std;

int userScore = 0;
int random1To20();
int random1To20()
{
    int targetNumber1;
    int least = 1;
    int most = 20;
    targetNumber1 = rand() % most + least;
    return targetNumber1;
}

int indicateAnswer();

int pointRound();
void text()
{
    int respnse;
    cout << "Your score is " << userScore << endl;

    cout << "Decide whether " << random1To20 << " is one of the multiples or is not a muliple at all " << endl;

    cout << "a. The number is a multiple of 2. " << endl;

    cout << "b. The number is a multiple of 3. " << endl;

    cout << "c. The number is a multiple of both 2 and 3. " << endl;

    cout << "d. None of these are true. " << endl;
    char response;
    cin >> response;
    return response;
}

char totalUpRightAnswers(int points)
{
    if (points % 2 == 0 && points % 3 == 0)
    {
        return 'c';
    }
    else if (points % 2 == 0)
    {
        return 'a';
    }
    else if (points % 3 == 0)
    {
        return 'b';
    }
    else
    {
        return 'd';
    }
}


bool processUserGuess(int points, char userAnswer)
{
    char correctness = totalUpRightAnswers(points);
    return (userAnswer == correctness);
}

int pointRound()
{
    int points = random1To20();
    char answer = indicateAnswer(points);
    bool correctness = processUserGuess(points, answer);
    // This if statement is for make scoring for the correct answer.
    if (correctness)
    {
        cout << "You are right!";
        return 1;
    }
    else
    {
        cout << "Oh no, you are wrong.";
        return -1;
    }
}

int main()
{
    userScore = 0;
    const int highestScore = 10;
    srand(time(NULL));

    do{
        cout << "Your scroe is " << userScore << endl;
        userScore += pointRound();
    } while (userScore < (highestScore)

    return 0;
}