#include<math.h>         //y=10sin(x/5);
 #include <stdio.h>
 #include <conio.h>
void main()
{
double a=-40.00;
unsigned char b;
clrscr();
textcolor(9);
gotoxy(1,12);
for(b=1;b<=80;b++)
cprintf("-\0");
for(b=1;b<=25;b++)
{
gotoxy(40,b);
cprintf("|\0");
}
gotoxy(1,1);
textcolor(12);
do{
gotoxy(40+(int)a,(int)(12+10*sin(a/5)));
cprintf("Û\0");
a+=0.1;
}while(a<=40);
}