Sample C prog For Matrix Multiplication

#include
#include
void main()
{
int no,m[20][20],r,c;
clrscr();
printf("No till where tables are to be printed");
scanf("%d",&no);
for(r=0;r<10;r++)
{
   for(c=0;c<no;c++)
   {
    m[r][c]=(r+1)*(c+1);
    printf("\t %d",m[r][c]);
   }
       printf("\n");
}
getch();
}