C Program to check if given two matrixs are equal

/* Write a C Program to accept two matrices and check if they are equal */

#include <stdio.h>
#include <conio.h>
#include <stdlib.h>

void main()
{
   int A[10][10], B[10][10];
   int i, j, R1, C1, R2, C2, flag =1;

   printf("Enter the order of the matrix A\n");
   scanf("%d %d", &R1, &C1);

   printf("Enter the order of the matrix B\n");
   scanf("%d %d", &R2,&C2);

   printf("Enter the elements of matrix A\n");
   for(i=0; i<R1; i++)
   {
     for(j=0; j<C1; j++)
     {
scanf("%d",&A[i][j]);
     }
   }

   printf("Enter the elements of matrix B\n");
   for(i=0; i<R2; i++)
   {
     for(j=0; j<C2; j++)
     {
scanf("%d",&B[i][j]);
     }
   }

   printf("MATRIX A is\n");
   for(i=0; i<R1; i++)
   {
     for(j=0; j<C1; j++)
     {
printf("%3d",A[i][j]);
     }
     printf("\n");
   }

   printf("MATRIX B is\n");
   for(i=0; i<R2; i++)
   {
     for(j=0; j<C2; j++)
     {
printf("%3d",B[i][j]);
     }
     printf("\n");
   }

   /* Comparing two matrices for equality */

   if(R1 == R2 && C1 == C2)
   {
    printf("Matrices can be compared\n");
    for(i=0; i<R1; i++)
    {
      for(j=0; j<C2; j++)
      {
if(A[i][j] != B[i][j])
{
  flag = 0;
  break;
}
      }
    }
    }
    else
    {  printf(" Cannot be compared\n");
       exit(1);
    }

    if(flag == 1 )
printf("Two matrices are equal\n");
    else
printf("But,two matrices are not equal\n");

}

/*------------------------------------------------------
Output
Enter the order of the matrix A
2 2
Enter the order of the matrix B
2 2
Enter the elements of matrix A
1 2
3 4
Enter the elements of matrix B
1 2
3 4
MATRIX A is
  1  2
  3  4
MATRIX B is
  1  2
  3  4
Matrices can be compared
Two matrices are equal
-------------------------------------------------------*/