Quote from: xHire on July 05, 2016, 08:00:39 AM

Quote from: Buffer Overflow on July 03, 2016, 08:36:28 PM

Quote from: xHire on July 03, 2016, 01:14:24 PM

Hehe, funny task.

Code:

void alex()
{
printf(" 0\r");
}

It simply prints a space for the digit 3 that will be printed later in main() and also prints the zero that is missing to form output "30". "\r" returns carriage to the beginning of the line so that the digit 3 is printed instead of the space.

That doesn't work in Linux console. The carriage return erases the previous characters.
Likewise, alternatively using the "\b" backspace does the same erasing.

If you replace the getch() function, which is from conio.h, by an equivalent function getchar() from stdio.h, you get the result as stated even in Linux console.

At least I didn't need to #include another header file like the accepted solution. Wink

Just tried it, it works now. Well done.

Never used conio.h anyway, the library isn't on my system.