My Leetcode Notes

This book contains all notes from my LeetCode practice. They are produced by a script Bear.java which is also included in the Bear article in this book. Read for details.
Briefly, each article corresponds to one question. Some question might have more than one article. This happens when the question has certain solutions that require separate compilation and debugging.
Each article starts with a solution's code, usually my own first AC submission. Then there are notes. At the end of the article there is usually the problem description.
Articles including Printer, ListNode, TreeNode, Interval, Bear etc. are all from utility class files. You do not need to read them.