LinkedIn Coding Interview Questions

Graphs, two pointers, and production-minded solutions.

#	Title	Difficulty	Topics
33	Search in Rotated Sorted Array	Medium	binary search
53	Maximum Subarray	Easy	dynamic programming
57	Insert Interval	Hard	sort
68	Text Justification	Hard	string
76	Minimum Window Substring	Hard	hash table
101	Symmetric Tree	Easy	stack
104	Maximum Depth of Binary Tree	Easy	recursion
127	Word Ladder	Medium	breadth first search
149	Max Points on a Line	Hard	hash table
150	Evaluate Reverse Polish Notation	Medium	stack
152	Maximum Product Subarray	Medium	dynamic programming
173	Binary Search Tree Iterator	Medium	design
187	Repeated DNA Sequences	Medium	hash table
200	Number of Islands	Medium	depth first search
205	Isomorphic Strings	Easy	hash table
236	Lowest Common Ancestor of a Binary Tree	Medium	depth first search
238	Product of Array Except Self	Medium	array
339	Nested List Weight Sum	Easy	depth first search
367	Valid Perfect Square	Medium	binary search
647	Palindromic Substrings	Medium	string