2016年12月30日
[leetcode] 题型整理之cycle
摘要： 找到环的起点。 一快一慢相遇初，从头再走再相逢。 阅读全文
posted @ 2016-12-30 15:20 Gryffin 阅读(123) 评论(0) 推荐(0)
[leetcode]题型整理之用bit统计个数
摘要： 137. Single Number II Given an array of integers, every element appears three times except for one. Find that single one. Note:Your algorithm should h 阅读全文
posted @ 2016-12-30 15:19 Gryffin 阅读(260) 评论(0) 推荐(0)
[leetcode] 小心成环
摘要： 156. Binary Tree Upside Down Given a binary tree where all the right nodes are either leaf nodes with a sibling (a left node that shares the same pare 阅读全文
posted @ 2016-12-30 07:17 Gryffin 阅读(166) 评论(0) 推荐(0)