Write an algorithm such that if an element in an MxN matrix is 0, its entire row and column is set to 0.

mxnmatrix.cpp

#include<iostream>
using namespace std;

int main()
{
    int m = 3;
    int n = 3;
    int array[3][3] = {{1,2,3},{4,5,6}, {7,8,9}};
    int row[3*3];
    int column[3*3];
    int count = 0;
    for(int row=0; row < m; row++)
    {
        for(int col=0; col < n; col++)
        {
            cout <<  array[row][col];                   
        }
        cout << endl;
    }
    
    for(int i=0; i < m; i++)
    {
        for(int j=0; j < n; j++)
        {
                if(array[i][j] == 0)
                {
                     row[count] = i;
                     column[count] = j;
                     count++;                        
                }
        }
    }
    
    cout << endl << endl;
    
    for(int i=0; i < count; i++)
    {
        for(int j=0; j < n; j++)
        {
                if(row[i] + j < 3)
                {
                          array[row[i] + j][column[i]] = 0;                       
                }
                if(row[i] - j >= 0)
                {
                          array[row[i] - j][column[i]] = 0;                       
                }
        }
        for(int j=0; j < n; j++)
        {
                if(column[i] + j < 3)
                {
                          array[row[i]][column[i]+j] = 0;                       
                }
                if(row[i] - j >= 0)
                {
                          array[row[i]][column[i]-j] = 0;                       
                }
        }
    }
    for(int row=0; row < m; row++)
    {
        for(int col=0; col < n; col++)
        {
            cout <<  array[row][col];                   
        }
        cout << endl;
    }       
    
    return 0;
    
}