#include "Project_3_Voids.h"
#include <iostream>

using namespace std;


//This function is only to display the menu
void Menu()
{
	cout << "----------------------------------------------------------------------\n\nThis program will ask you for a matrix and will either:\n\n1. Process and display a matrix\n\n2. Multiply a matrix\n\n3. Add a matrix\n\n4. Exit the program\n\nInput the corresponding number to make a choice\n\n----------------------------------------------------------------------\n\nYour choice is:\n\n";
}

//This funtion will process the choice inputted from the user
void ProcessChoice(int& choice)
{
	cin >> choice;
}

//This function is only used to record a matrix, but won't be used because the individual functions will ask for a matrix anyways. This function is only to record and display back, and not to use
void GetMatrix(int& rowM1, int& columnM1, int& rowM2, int& columnM2, int& iM, int& jM)
{
	int arrayM1[10][10];
	int arrayM2[10][10];
	int Matrixarray[10][10];

	//Asking for how many rows and columns for the matrix. I know it's supposed to be a 3 x 3 but I made it to fit however many the user wants
	cout << "Enter rows and columns for first matrix: ";
	cin >> rowM1 >> columnM1;
	cout << "\nEnter rows and columns for second matrix: ";
	cin >> rowM2 >> columnM2;

	// If column of first matrix in not equal to row of second matrix,
	// ask the user to enter the size of matrix again.
	while (columnM1 != rowM2)
	{
		cout << "Error! column of first matrix not equal to row of second.";

		cout << "Enter rows and columns for first matrix: ";
		cin >> rowM1 >> columnM1;

		cout << "Enter rows and columns for second matrix: ";
		cin >> rowM2 >> columnM2;
	}

	// Storing elements of first matrix.
	cout << endl << "Enter elements of matrix 1:" << endl;
	for (iM = 0; iM < rowM1; ++iM)
		for (jM = 0; jM < columnM1; ++jM)
		{
			cout << "Enter element a" << iM + 1 << jM + 1 << " : ";
			cin >> arrayM1[iM][jM];
		}

	// Storing elements of second matrix.
	cout << endl << "Enter elements of matrix 2:" << endl;
	for (iM = 0; iM < rowM2; ++iM)
		for (jM = 0; jM < columnM2; ++jM)
		{
			cout << "Enter element b" << iM + 1 << jM + 1 << " : ";
			cin >> arrayM2[iM][jM];
		}

	//Displaying the numbers of matrix a inputted by user
	cout << endl << "Input numbers from array 1: \n" << endl;
	for (iM = 0; iM < rowM1; ++iM)
		for (jM = 0; jM < columnM2; ++jM)
		{
			cout << " " << arrayM1[iM][jM];
			if (jM == columnM2 - 1)
				cout << endl;
		}

	//Displaying the numbers of matrix b inputted by user
	cout << endl << "Input numbers from array 2: \n" << endl;
	for (iM = 0; iM < rowM1; ++iM)
		for (jM = 0; jM < columnM2; ++jM)
		{
			cout << " " << arrayM2[iM][jM];
			if (jM == columnM2 - 1)
				cout << endl;
		}
}

int AddMatrix(int& rowa1, int& columna1, int& rowa2, int& columna2, int& ia, int& ja, int& ka)
{
	int arraya1[10][10];
	int arraya2[10][10];
	int addedarray[10][10];

	//Asking for how many rows and columns for the matrix. I know it's supposed to be a 3 x 3 but I made it to fit however many the user wants
	cout << "Enter rows and columns for first matrix: ";
	cin >> rowa1 >> columna1;
	cout << "\nEnter rows and columns for second matrix: ";
	cin >> rowa2 >> columna2;

	// If column of first matrix in not equal to row of second matrix,
	// ask the user to enter the size of matrix again.
	while (columna1 != rowa2)
	{
		cout << "Error! column of first matrix not equal to row of second.";

		cout << "Enter rows and columns for first matrix: ";
		cin >> rowa1 >> columna1;

		cout << "Enter rows and columns for second matrix: ";
		cin >> rowa2 >> columna2;
	}

	// Storing elements of first matrix.
	cout << endl << "Enter elements of matrix 1:" << endl;
	for (ia = 0; ia < rowa1; ++ia)
		for (ja = 0; ja < columna1; ++ja)
		{
			cout << "Enter element a" << ia + 1 << ja + 1 << " : ";
			cin >> arraya1[ia][ja];
		}

	// Storing elements of second matrix.
	cout << endl << "Enter elements of matrix 2:" << endl;
	for (ia = 0; ia < rowa2; ++ia)
		for (ja = 0; ja < columna2; ++ja)
		{
			cout << "Enter element b" << ia + 1 << ja + 1 << " : ";
			cin >> arraya2[ia][ja];
		}

	// Adding matrix a and b and storing in array added.
	for (ia = 0; ia < rowa1; ++ia)
		for (ja = 0; ja < columna2; ++ja)
			for (ka = 0; ka < columna1; ++ka)
			{
				addedarray[ia][ja] = arraya1[ia][ja] + arraya2[ia][ja];
			}

	//Displaying the numbers of matrix a inputted by user
	cout << endl << "Input numbers from array 1: \n" << endl;
	for (ia = 0; ia < rowa1; ++ia)
		for (ja = 0; ja < columna2; ++ja)
		{
			cout << " " << arraya1[ia][ja];
			if (ja == columna2 - 1)
				cout << endl;
		}

	//Displaying the numbers of matrix b inputted by user
	cout << endl << "Input numbers from array 2: \n" << endl;
	for (ia = 0; ia < rowa1; ++ia)
		for (ja = 0; ja < columna2; ++ja)
		{
			cout << " " << arraya2[ia][ja];
			if (ja == columna2 - 1)
				cout << endl;
		}

	// Displaying the addition of two matrix.
	cout << endl << "Output Matrix: " << endl;
	for (ia = 0; ia < rowa1; ++ia)
		for (ja = 0; ja < columna2; ++ja)
		{
			cout << " " << addedarray[ia][ja];
			if (ja == columna2 - 1)
				cout << endl;
		}

	return 0;
}

int MultiplyMatrix(int& row1, int& column1, int& row2, int& column2, int& i, int& j, int& k)
{
	int array1[10][10];
	int array2[10][10];
	int multipliedarray[10][10];

	//Asking for how many rows and columns for the matrix. I know it's supposed to be a 3 x 3 but I made it to fit however many the user wants
	cout << "Enter rows and columns for first matrix: ";
	cin >> row1 >> column1;
	cout << "\nEnter rows and columns for second matrix: ";
	cin >> row2 >> column2;

	// If column of first matrix in not equal to row of second matrix,
	// ask the user to enter the size of matrix again.
	while (column1 != row2)
	{
		cout << "Error! column of first matrix not equal to row of second.";

		cout << "Enter rows and columns for first matrix: ";
		cin >> row1 >> column1;

		cout << "Enter rows and columns for second matrix: ";
		cin >> row2 >> column2;
	}

	// Storing elements of first matrix.
	cout << endl << "Enter elements of matrix 1:" << endl;
	for (i = 0; i < row1; ++i)
		for (j = 0; j < column1; ++j)
		{
			cout << "Enter element a" << i + 1 << j + 1 << " : ";
			cin >> array1[i][j];
		}

	// Storing elements of second matrix.
	cout << endl << "Enter elements of matrix 2:" << endl;
	for (i = 0; i < row2; ++i)
		for (j = 0; j < column2; ++j)
		{
			cout << "Enter element b" << i + 1 << j + 1 << " : ";
			cin >> array2[i][j];
		}

	// Initializing elements of matrix mult to 0.
	for (i = 0; i < row1; ++i)
		for (j = 0; j < column2; ++j)
		{
			multipliedarray[i][j] = 0;
		}

	// Multiplying matrix a and b and storing in array mult.
	for (i = 0; i < row1; ++i)
		for (j = 0; j < column2; ++j)
			for (k = 0; k < column1; ++k)
			{
				multipliedarray[i][j] += array1[i][k] * array2[k][j];
			}
	//Displaying the numbers of matrix a inputted by user
	cout << endl << "Input numbers from array 1: \n" << endl;
	for (i = 0; i < row1; ++i)
		for (j = 0; j < column2; ++j)
		{
			cout << " " << array1[i][j];
			if (j == column2 - 1)
				cout << endl;
		}

	//Displaying the numbers of matrix b inputted by user
	cout << endl << "Input numbers from array 2: \n" << endl;
	for (i = 0; i < row1; ++i)
		for (j = 0; j < column2; ++j)
		{
			cout << " " << array2[i][j];
			if (j == column2 - 1)
				cout << endl;
		}

	// Displaying the multiplication of two matrix.
	cout << endl << "Output Matrix: " << endl;
	for (i = 0; i < row1; ++i)
		for (j = 0; j < column2; ++j)
		{
			cout << " " << multipliedarray[i][j];
			if (j == column2 - 1)
				cout << endl;
		}

	return 0;
}