Introduction

• Read this in Gitbook

• Zichao Yang's Homepage

Meaning of Table of Contents

• 'J' means I've done it in Java.

• 'P' means I've done it in Python3.

• '?' means there are some other good method worth trying.

  For example, 001J? means I only finished p001 with some trivial method in Java, while 001JP means I've thoroughly done this problem in both Java and Python3.

• 'x' means this problem is not worth wasting time on it.

• '* ' means this problem has been considered thoroughly.