Links etc.

C Resources

There are a thousand sources to get tutorials and examples on the web. You can also find books from the KTH library.
Here is one website for beginners: www.cprogramming.com Check out their C tutorials.
If you are programming in Windows environments, here are some links to free C/C++ compilers:
Free Microsoft Visual C++ 2005 Express
Turbo C++ Explorer

Sorting methods

You can check out different sorting algorithms here:
Sorting Algorithm Animations

Pointers

Here you can read about how pointers and memory works:
Overview about pointers and memory

Literature

Suggested previous years:

Computer Science for Scientific Computing
Chapter 2, Data
G. W. Stewart.

MATLAB Programming for Engineers
Stephen J. Chapman.
Brooks/Cole

C How to program; International Edition, 5/E
Deitel & Associates, Inc
Pearson Higher Education