题目：
Given a linked list, return the node where the cycle begins. If there is no cycle, return null.
Follow up:
Can you solve it without using extra space?
思路：
可以参考
LeetCode: 73 Linked ...
分类：
编程语言 时间：
2015-01-07 13:08:14
阅读次数：
161
https://oj.leetcode.com/problems/populating-next-right-pointers-in-each-node/http://blog.csdn.net/linhuanmars/article/details/23499383/**
*Definitionforbinarytreewithnextpointer.
*publicclassTreeLinkNode{
*intval;
*TreeLinkNodeleft,right,next;
*TreeLinkNode..
分类：
其他好文 时间：
2015-01-06 18:15:27
阅读次数：
170
https://oj.leetcode.com/problems/populating-next-right-pointers-in-each-node-ii/http://blog.csdn.net/linhuanmars/article/details/23510601/**
*Definitionforbinarytreewithnextpointer.
*publicclassTreeLinkNode{
*intval;
*TreeLinkNodeleft,right,next;
*TreeLinkN..
分类：
其他好文 时间：
2015-01-06 18:14:12
阅读次数：
118
题目：
Follow up for "Remove Duplicates":
What if duplicates are allowed at most twice?
For example,
Given sorted array A = [1,1,1,2,2,3],
Your function should return length = 5, and A is no...
分类：
编程语言 时间：
2015-01-06 15:41:57
阅读次数：
163
题目：
Given an array S of n integers, are there elements a, b, c in S such that a + b + c =
0? Find all unique triplets in the array which gives the sum of zero.
Note:
Elements in a tripl...
分类：
编程语言 时间：
2015-01-06 10:06:42
阅读次数：
130
Populating Next Right Pointers in Each Node IIFollow up for problem "Populating Next Right Pointers in Each Node".What if the given tree could be any ...
分类：
其他好文 时间：
2015-01-04 21:05:45
阅读次数：
170
Populating Next Right Pointers in Each NodeGiven a binary tree struct TreeLinkNode { TreeLinkNode *left; TreeLinkNode *right; TreeLi...
分类：
其他好文 时间：
2015-01-04 20:56:53
阅读次数：
156
Follow up for problem "Populating Next Right Pointers in Each Node".
What if the given tree could be any binary tree? Would your previous solution still work?
Note:
You may only use constant ...
分类：
其他好文 时间：
2015-01-04 13:37:37
阅读次数：
139
Given a binary tree
struct TreeLinkNode {
TreeLinkNode *left;
TreeLinkNode *right;
TreeLinkNode *next;
}
Populate each next pointer to point to its next right node....
分类：
其他好文 时间：
2015-01-04 13:37:21
阅读次数：
94
Follow up for problem "Populating Next Right Pointers in Each Node".What if the given tree could be any binary tree? Would your previous solution stil...
分类：
其他好文 时间：
2015-01-02 18:45:09
阅读次数：
149
