#include<stdio.h>
#include<conio.h>
void main()
{
int i,j,r1,c1,r2,c2,a[10][10],b[10][10],c[10][10];
clrscr();
printf("Enter how many row in first matrics A : ");
scanf("%d",&r1);
printf("Enter how many column in first matrics A : ");
scanf("%d",&c1);
for(i=0;i<r1;i++)
for(j=0;j<c1;j++)
scanf("%d",&a[i][j]);
printf("Enter how many row in second matrics B : ");
scanf("%d",&r2);
printf("Enter how many column in second matrics B : ");
scanf("%d",&c2);
for(i=0;i<r2;i++)
for(j=0;j<c2;j++)
scanf("%d",&b[i][j]);
if(r1==r2 && c1==c2)
{
for(i=0;i<r1;i++)
for(j=0;j<c1;j++)
c[i][j]=a[i][j]+b[i][j];
printf("\nThe sum of A & B is : \n");
for(i=0;i<r1;i++)
{
for(j=0;j<c1;j++)
printf("%4d",c[i][j]);
printf("\n\n");
}
}
else
printf("\nThe sum of A & B is impossible.");
if(r1==r2 && c1==c2)
{
for(i=0;i<r1;i++)
for(j=0;j<c1;j++)
{
c[i][j]=0;
for(k=0;k<c1;k++)
c[i][j]=c[i][j]+a[i][k]*b[k][j];
}
printf("\nThe multiplication of A & B is : \n");
for(i=0;i<r1;i++)
{
for(j=0;j<c2;j++)
printf("%4d",c[i][j]);
printf("\n\n");
}
}
else
printf("\nThe multiplication of A & B is impossible.");
getch();
}
///////////////////////////////////////////////////////////////////////////
Copy & paste this code in your TC & run, then you will get output.......
If you have any problem please comment below.........