Addition and Subtraction of two Matrices

/*Program to Find the Addition and Subtraction of two Matrices*/

#include<stdio.h>
#include<conio.h>
#include<math.h>
void main()
{
   int a[10][10], b[10][10], c[10][10];
   int i,j,n,m;
   clrscr();
   printf("\n\tAddition and Subtraction of two matrices");
   printf("\nEnter the no. of rows and columns:");
   scanf("%d%d",&m,&n);
   printf("\nEnter the first matrix:\n");
   for(i=0;i<m;i++)
   {
     for(j=0;j<n;j++)
     {
scanf("%d",&a[i][j]);
     }
   }

   printf("\nEnter the first matrix:\n");
   for(i=0;i<m;i++)
   {
     for(j=0;j<n;j++)
     {
scanf("%d",&b[i][j]);
     }
   }

   printf("\nAddition of two matrices:\n");
   for(i=0;i<m;i++)
   {
     for(j=0;j<n;j++)
     {
       printf("%d",a[i][j]+b[i][j]);
       printf("\t");
     }
     printf("\n");
   }

      printf("\nSubtraction of two matrices:\n");
   for(i=0;i<m;i++)
   {
     for(j=0;j<n;j++)
     {
       printf("%d",a[i][j]-b[i][j]);
       printf("\t");
     }
     printf("\n");
   }
   getch();
}

OUTPUT

Addition and Subtraction of two matrices
Enter the no. of rows and columns:2 2

Enter the first matrix:
1 2
3 4

Enter the second matrix:
1 2
3 4

Addition of two matrices:
2    4
6    8

Subtraction of two matrices:
0    0
0    0