pattern with sound

//print pattern with background sound..... keep your mother board speaker connected......

#include<stdio.h>
#include<conio.h>
#include<dos.h>
void main()
{
int i,j,m,k=1,t=1;//,g;
clrscr();
printf("enter the height");
scanf("%d",&m);
printf("\n\n");
for(i=0;i<m;i++)
{
for(j=0;j<m;j++)
{
textcolor(t);
textbackground(t+1);
t++;
sound(30*(k++)*2);
if((i==0 || i==m-1) || (j==0 || j==m-1))
cprintf(" *");
else if(i==j)
cprintf(" $");
else
cprintf(" #");
delay(100);
}
printf("\n");
}
nosound();
getch();
}