C-Program to Check Whether Both Matrices are Equal or not

#include<stdio.h>

int main()

{

 int i,j,row1,row2,column1,column2,flag;

 printf("Enter row1\n");

 scanf("%d",&row1);

 printf("Enter column 1\n");

 scanf("%d",&column1);

 printf("Enter row2\n");

 scanf("%d",&row2);

 printf("Enter column 2\n");

 scanf("%d",&column2);

  int a[row1][column1],b[row2][column2];

  if(row1==row2 && column1==column2)

  {

   flag=1;

   printf("Enter Matrix A\n");

      for(i=0;i<row1;i++)

       {

      for(j=0;j<column1;j++)

        scanf("%d",&a[i][j]);

      }

      printf("Enter Matrix B\n");

      for(i=0;i<row2;i++)

       {

      for(j=0;j<column2;j++)

        scanf("%d",&b[i][j]);

      }

     

      for(i=0;i<row1;i++)

      {

       for(j=0;j<column1;j++)

       {

        if(a[i][j]!=b[i][j])

        {

         flag=0;

         break;

        }

       }

      }

      if(flag==1)

     {

      printf("Both Matrices are equal\n");

     }

     else

     {

      printf("Matrices are not Equal\n");

     }

  }

  else

  {

   printf("Not Possible to Compare as Rows and Columns are Not equal\n");

  }    

 return 0;

}