/* PROGRAM TO MULTIPLY TWO MATRICES*/
 #include<stdio.h>
 main()
 {
 int  a[10][10],b[10][10],c[10][10],i,j,m,n,ip,k,p,q;
 clrscr();
 printf("INPUT ROWS AND COLUMNS OF A MATRIX\n");
 scanf("%d %d",&m,&n);
 printf("INPUT ROWS AND COLUMNS OF B MATRIX\n");
 scanf("%d%d",&k,&q);
 if(n==k)
 {
 printf("MATRICES CAN BE MULTIPLIED\n");
 printf("RESULTANT MATRIX IS%d*%d\n",k,q);
 printf("INPUT A-MATRIX\n");
 read_mat(a,m,n);
 printf("INPUT B_MATRIX\n");
 read_mat(b,k,q);
 for(i=0;i<m;i++)
 for(j=0;j<q;++j)
 {
 c[i][j]=0;
 for(ip=0;ip<n;++ip)
 c[i][j]=(c[i][j]+(a[i][ip]*b[ip][j]));
 }
 printf("RESULTANT OF A AND B MATRICES:\n");
 write_mat(c,m,q);
}
else
{
printf("COLUMN OF MATRIX-A MUST BE EQUAL TO ROW OF MATRIX-B\n");
printf("MATRICES CONNOT BE MULTIPLIED\n");
}
}
  read_mat(a,m,n)
  int a[10][10],m,n;
 {
 int i,j;
 for(i=0;i<m;i++)
for(j=0;j<n;j++)
scanf("%d",&a[i][j]);
}
write_mat(a,m,n)
int a[10][10],m,n;
{
int i,j;
for(i=0;i<m;i++)
{
for(j=0;j<n;j++)
printf("%5\d",a[i][j]);
printf("\n");
}
getche();


}