* Array and string manipulation
** DONE Merging Meeting Times
** DONE Reverse String in Place
** TODO Reverse Words
** DONE Merge Sorted Arrays
** DONE Cafe Order Checker
* Hashing and hash tables
** DONE Inflight Entertainment
** DONE Permutation Palindrome
** DONE Word Cloud Data
** DONE Top Scores
* Greedy Algorithms
** DONE Apple Stocks
** DONE Highest Product of 3
** DONE Product of All Other Numbers
** DONE Cafe Order Checker
** DONE In-Place Shuffle
* Sorting, searching, and logarithms
** DONE Find Rotation Point
** TODO Find Repeat, Space Edition
** DONE Top Scores
** DONE Merging Meeting Times
* Trees and graphs
** DONE Balanced Binary Tree
** DONE Binary Search Tree Checker
** DONE 2nd Largest Item in a Binary Search Tree
** DONE Graph Coloring
** DONE MeshMessage
** DONE Find Repeat, Space Edition BEAST MODE
* Dynamic programming and recursion
** DONE Recursive String Permutations
** DONE Compute nth Fibonacci Number
** DONE Making Change
** DONE The Cake Thief
** DONE Balanced Binary Tree
** DONE Binary Search Tree Checker
** DONE 2nd Largest Item in a Binary Search Tree
* Queues and stacks
** DONE Largest Stack
** DONE Implement A Queue With Two Stacks
** DONE Parenthesis Matching
** DONE Bracket Validator
* Linked lists
** DONE Delete Node
** DONE Does This Linked List Have A Cycle?
** DONE Reverse A Linked List
** DONE Kth to Last Node in a Singly-Linked List
** DONE Find Repeat, Space Edition BEAST MODE
* General programming
** TODO Rectangular Love
** TODO Temperature Tracker
* Bit manipulation
** DONE The Stolen Breakfast Drone
* Combinatorics, probability, and other math
** TODO Which Appears Twice
** TODO Find in Ordered Set
** TODO In-Place Shuffle
** TODO Simulate 5-sided die
** TODO Simulate 7-sided die
** TODO Two Egg Problem
