11.3 - Find an element in a sorted array that's been rotated
11.5 - Searching array of sorted strings with random blanks
11.6 - Find a value in MxN sorted matrix
11.7 - Longest subsequence
Off by one
Started on 11.6 using ArrayList
Saving proress on 11.6
15.1 - Group By
15.2
15.3
16.1 - Dining Philosophers
16.1 - Dining Philosophers update