#include <stdio.h>
#include <stdlib.h>
int main(int argc, char *argv[])
{
int i;
int num = 0;
char c_num;
printf("please enter a countdown number[1-9]:");
c_num = getchar();
getchar();
num = atoi((const char *)&c_num);
printf("COUNTDOWN:\n");
for(i = num; i > 0; i--)
{
printf("\b\b");
printf("%2d",i);
fflush(stdout); /*write buffer to the screen(stdout), if needed*/
sleep(1);
}
printf("\n");
return 0;
}