05. Compare Matrices

#include <iostream>
#include <string>
#include <sstream>

using namespace std;

 int getMatrix2D(int** matrix, int rows)
{
    //Allocate memory and initilize

     string input;
     stringstream lineIn;
     int elm;
     getline(cin, input);
     lineIn << input;
     int col = 0;
     //Get number on colons
     while (lineIn >> elm)
     {
         col++;
     }

     //Clear and load buffer
     lineIn.str("");
     lineIn.clear();
     lineIn << input;
     matrix[0] = new int[col];
     for (int j = 0; j < col; j++)
     {
         lineIn >> elm;
         matrix[0][j] = elm;
     }

     //Clear buffer
     lineIn.str("");
     lineIn.clear();
    for (int i = 1; i < rows; i++)
    {

        getline(cin, input);
        lineIn << input;
        matrix[i] = new int[col];
        for (int j = 0; j < col; j++)
        {
            lineIn >> elm;
            matrix[i][j] = elm;
        }

        //Clear buffer
        lineIn.str("");
        lineIn.clear();
    }

    return col;
}

 bool compareMatrix(int** matrix1, int** matrix2, int rows, int cols)
 {
     for (int i = 0; i < rows; i++)
         for (int j = 0; j < cols; j++)
             if (matrix1[i][j] != matrix2[i][j])
                 return false;

     return true;
 }

 void deleteMatrix(int** matrix, int rows)
 {
     for (int i = 0; i < rows; i++)
         delete[] matrix[i];
     delete[] matrix;
 }

int main()
{
    //initilized with 0
//    int matrix1[10][10] = {};
//    int matrix2[10][10] = {};

    int row1, row2, col1, col2;
    cin >> row1; cin.ignore();
    int** matrix1 = new int* [row1];
    col1 = getMatrix2D(matrix1, row1);

    cin >> row2; cin.ignore();
    if (row1 != row2)
    {
        cout << "not equal";
        deleteMatrix(matrix1, row1);
        return 0;
    }
    int** matrix2 = new int* [row2];
    col2 = getMatrix2D(matrix2, row2);

    if (col1 != col2)
    {
        cout << "not equal";
        deleteMatrix(matrix1, row1);
        deleteMatrix(matrix2, row2);

        return 0;
    }

    if (compareMatrix(matrix1, matrix2, row1, col1))
        cout << "equal";
    else
        cout << "not equal";

    deleteMatrix(matrix1, row1);
    deleteMatrix(matrix2, row2);
}