learn C in 24 hours
This file is very important as it includes chapters in hours. you can learn c in just 24 hour , it includes only main and important parts , you don't need to mug up extra or unimportant things. It helped me clearing my c exam otherwise I wouldn't be able to do so. You can use this for your exam purpose as well as your own purpose as C is very important in most of fields to get a job too.