Twitter Coding Interview Questions

Coding interview preparation for Twitter: high-frequency patterns and problem sets.

#	Title	Difficulty	Topics
118	Pascal's Triangle	Easy	array
146	LRU Cache	Hard	design
202	Happy Number	Easy	hash table
208	Implement Trie (Prefix Tree)	Medium	tree
218	The Skyline Problem	Hard	sort
235	Lowest Common Ancestor of a Binary Search Tree	Easy	binary search tree
341	Flatten Nested List Iterator	Medium	stack
355	Design Twitter	Medium	design
380	Insert Delete GetRandom O(1)	Hard	design