Simple Program for me please?!!

Hi guys. I have a problem for uni that is simly driving me mad. as someone who is VERY new to the work of C (basic of basic) i need some help.
Here is the problem:-

Write a C program that reads a file containing the source of a C program and specifically:
a. Removes all comments.
b. Removes all unnecessary spaces and formatting.
c. Writes the processed code to a second file using a maximum of 80 characters on a line. (Be careful not to break up text strings.)
d. Takes its input and output filenames as arguments to the program’s command line.

Thank very much in advance