Initial answers for section 1.1 exercises
Add gitignore
Answers for exercision on section 1.2
Add answer to problem
Add command to generate jpg file from tex
Fix calculations for prob1.1
Improve answers and fix typo
Change ceil to floor
Add note for gamma function in order to solve factorial equation
Fix command execution check
Fix factorial values
Improve traveling-salesman answer
Move .gitignore to toplevel
Merge pull request #1 from fabioyamate/ch01

Chapter 1: The Role of Algorithms in Computing