Add week_2 example for hand shaking
Add bubble sort in class work for week 2
Add delete method
Revert "Add delete method"

This reverts commit 0692857c42872093cb368e97689b42c8b7a3b3c1.
Begin scoring-array
Merge sort fun times
Move scoring_array to HW directory
Better convergence test
Week 3 in class tree traversal
Phone number search
Phone number search homework
Fix test name
Whitespace
README
queue and stack
week 2
fix test
Explanation of problem
Add week 4 in class hash function
Add hashmap homework