Equal matrix

Non-Recursive C Program:

Aim: To compare two matrix are equal or not.

Program:
#include <stdio.h>
#include <conio.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");
    }

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 equ al\n");

}