20.49. Write a program that adds two matrices.

#include<stdio.h>
#include conio.h>  
void main()

{

int i, j, rl, cl, r2, c2, *a[10][10], *b[10] [10], *c[10] [10];

for(i=0; i<10; i++)

{

a[i]=(int *)malloc(sizeof(char)*10);

b[i]=(int *)malloc(sizeof(char)*10);

c[i]=(int *)malloc(sizeof(char)*10);

}

clrscr ();
printf ("How many row in A: "); 

scanf("%d", &rl); 

printf ("How many column in A: ");
scaní ("%d", &cl);
for i=0; i<rl; i++)
for (j=0; j<cl; j++) 

scanf ("&d", (*a(a+i)+j));
printf("How many row in A: ");
scanf("%d", &r2);
printf ("How many column in A: "); 

scanf("%d", &c2);
for (i=0; i<r2; i++)
for (j=0; j<c2; j++) 

scanf("%d",&b[i][j]);
if (r1==r2 && cl==c2)

{
for (i=0; i<rl; i++) 

for (j=0; j<cl; j++)
*c[i] [j]=*a[i] [j] +*b[i] [j];

printf("\nThe sum of A and B is: \n"); 

for (i=0; i<r1; i++)
for (j=0; j<cl; j++) 

printf ("%4d", *(*(c+i)+j));

printf("\n");

}

else
printf("\nThe sum of A and B is impossible.");
getch();

}