#include <iostream>
using namespace std;

const int MATRIX_SIZE = 4;

void getMatrixFromUser(int matrixIndex, int matrix[][MATRIX_SIZE]);
void addMatrices(int matrix1[][MATRIX_SIZE], int matrix2[][MATRIX_SIZE], int result[][MATRIX_SIZE]);

void main()
{
	int matrices[25][MATRIX_SIZE][MATRIX_SIZE];
	int initialMatrices;
	int matricesUsed = 0;

	cout << "How many initial matrices?";
	cin >> initialMatrices;

	while(matricesUsed < initialMatrices)
	{
		getMatrixFromUser(matricesUsed + 1, matrices[matricesUsed]);
		matricesUsed++;
	}

	char operation;
	int firstMatrixIndex;
	int secondMatrixIndex;
	//get operation until 'Q' or 'q' is entered
	cout << "Operation? ";
	cin >> operation;

	switch(operation)
	{
	case '+':
		//call function to add
		cout << "First matrix for +?";
		//add logic to make sure that the index entered is in the range 1- matricesUsed
		cin >> firstMatrixIndex;
		cout << "Second matrix for +?";
		cin >> secondMatrixIndex;
		addMatrices(matrices[firstMatrixIndex], matrices[secondMatrixIndex], matrices[matricesUsed]);
		matricesUsed++;
		break;
	case '-':
		//call function to add
		break;
	case '*':
		//call function to add
		break;
	case 'X':
	case 'x':
		//call function to add
		break;
	case 't':
	case 'T':
		//call function to add
		break;
	case 'D':
	case 'd':
		//call function to add
		break;
	}


}

void getMatrixFromUser(int matrixIndex, int matrix[][MATRIX_SIZE])
{
	cout << "Enter matrix " << matrixIndex << ":\n";

	for(int row = 0; row < MATRIX_SIZE; row++)
	{
		cout << "Row " << row + 1 << "? ";
		for(int column = 0; column < MATRIX_SIZE; column++)
		{
			cin >> matrix[row][column];
		}
	}

}

void addMatrices(int matrix1[][MATRIX_SIZE], int matrix2[][MATRIX_SIZE], int result[][MATRIX_SIZE])
{
	for(int row = 0; row < MATRIX_SIZE; row++)
	{
		for(int column = 0; column < MATRIX_SIZE; column++)
		{
			result[row][column] = matrix1[row][column] + matrix2[row][column];
		}
	}
}