刷题任务

http://pythontutor.com/visualize.html#mode=display

重刷题目:

• 15 3Sum
• 16 3Sum Closest
• 3. Longest Substring Without Repeating Characters

Lintcode

• 607 Two Sum III - Data Structure Design
• 143 Sort Colors II

Leetcode

• 532 K-diff Pairs in an Array
• 18 4Sum
• 76 Minimum Window Substring
• 763. Partition Labels
• 828. Unique Letter String
• 80. Remove Duplicates from Sorted Array II
• 11. Container With Most Water

刷题状况:
15 3Sum : 细小的Bug, l初始值设置错位