First commit
what_time
A tree exercise
Use hash to store graph to improve complexity; Some refactoring
Refactoring for graph hash
Refactoring; Convert tabs to spaces
bonuses from cloud9
Vending Machine
Simple refactoring
Hill Hike dynamic programming
Refactor and add comment
Remove struct
New exercise
Delete self
big cube
reverse loop gives cleaner code
remove comment
eigen vector
digit multiples
Brief analysis, added O(n^2)