## Tacked-on fixes

If you clarify or modify your challenge after posting, don't just tack on a note to the end or to a list of bullet points. Edit in the change. 

It's confusing when the body of the challenge says one thing but a later part says another. Of course, it would be ideal not to change the challenge after posting, but if you have to edit, do so cleanly.

For example, if you said to "take two integers as input", but, when asked, clarify that you had positive integers in mind, don't just add a note at the end that says

>  - You may assume the input integers will be positive.

Instead, change the line to "take two positive integers as input".

If you have to make a substantial change, or there's already answers, it might be worth making a note about your change at the end to make people aware of it.