#include <iostream>
#include <cstdlib>
#include <ctime>

using namespace std;
int generateRandNum();


struct sudokuS{
    int rowOne[4];
    int rowTwo[4];
    int rowThree[4];
    int rowFour[4];
};
void displaySudoku(sudokuS sudokuZ);
sudokuS generateSudoku(sudokuS sudokuZ);

int main()
{
    sudokuS sudokuZ;
    int medium = 6;
    int temp;
    int pickcol, pickrow, answer;
    char symbol[4] = {'a','b','c','d'};
    srand((unsigned)time(0)); //Different number every execution
    sudokuZ = generateSudoku(sudokuZ); //Generate 2x2 (4) answer sudoku
    //Generate Sudoku Puzzle

//    for (int i = 0; i < R; i++)
//    {
//        temp = generateRandNum();
//        sudokuQuest[i][temp] = 0;
//        temp = generateRandNum();
//        sudokuQuest[i][temp] = 0;
//    }
    //Display sudoku
    cout << "Solve this sudoku problem: \n" << endl;
    displaySudoku(sudokuZ);

//    cout << "\nInput column, row number and answer separated by space :" << endl;
//    for (int i = 0; i< R; i++)
//        cout << "test" << endl;
//    cin >> pickcol;// >> pickrow >> answer;
    return 0;
}

void displaySudoku(sudokuS sudokuZ)
{
    for (int i = 0; i < 4; i++)
        {
            for (int j = 0; j < 4; j++)
            {
                if (i == 0)
                    cout << sudokuZ.rowOne[j] << " ";
                if (i == 1)
                    cout << sudokuZ.rowTwo[j] << " ";
                if (i == 2)
                    cout << sudokuZ.rowThree[j] << " ";
                if (i == 3)
                    cout << sudokuZ.rowFour[j] << " ";
            }
            cout << endl;
        }

//    for (int i = 0; i < 9; i++)
//    {
//        if (i == 0 || i == 4 || i == 8)
//            cout << setw(50) << "------------|------------"<< endl;
//        else
//            cout << setw(50) << "| x | y | x | y | x | y |" << endl;
//    }

}


//Generate complete sudoku in an array
sudokuS generateSudoku(sudokuS sudokuZ)
{

    for (int i = 0; i < 4; i++)
    {
        sudokuZ.rowOne[i] = generateRandNum();
        sudokuZ.rowTwo[i] = generateRandNum();
        sudokuZ.rowThree[i] = generateRandNum();
        sudokuZ.rowFour[i] = generateRandNum();
    }

    /*
    for (int i = 0; i < 4; i++)
    {
        for (int j = 0; j < 4; j++)
        {

        }
    }

    */
    return sudokuZ;
}


//Generate random number each time in range of 1-4
int generateRandNum()
{
    int randNum;
    randNum = (rand() % 4)+1;
    return randNum;
}