Derecho C++ Quiz

Instructions:

1. Fill out short answer questions in QUESTIONS.md
2. Open up each source file and follow the instructions inside.

Feel free to modify the makefile, but you shouldn't need to.

To compile:

$ make      # makes fib, increment, and sum   
$ make fib  # only makes fib   

When you are done:

1. $ make clean
2. Zip this folder
3. Email it to .