Subject changed to prevent abuse

#include<stydio.h>
#include<conio.h>
#include<stdlib.h>
void main{
int i,j,noframes,x,x1,x1=10,x2;
clrscr();
for(i=0;i<200;i++)
rand();
noframes=rand()/200;
i=1;
j=1;
noframes=noframes/8;
printf("\n number of frames is %d"i);
getch();
while(noframes>0)
{
printf("\nsending frame %d",i);
srand(x1++)
x=rand()%10;
if(x%2==0)
{
for(x2=1;x2<2;x2++)
{
printf("waiting for %d seconds\n",x2);
sleep(x2);
}
printf("\nsending frame %d",i);
srand(x1++);
x=rand()%10;
}
printf("\nack for frame %d,i);
noframes-=1;
j++;
j++;
}
printf("\n end of stop and wait protocol");
getch();
}