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Java for LeetCode 116 Populating Next Right Pointers in Each Node
Given a binary tree struct TreeLinkNode { TreeLinkNode *left; TreeLinkNode *right; TreeLinkNode *next; }Populate each next pointe...
分类:编程语言   时间:2015-05-24 14:05:02    阅读次数:130
LeetCode Populating Next Right Pointers in Each Node
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:2015-05-21 00:05:17    阅读次数:181
【Pointers On C】C和指针部分编程题 solution
第6章 指针 6.18.3   编写函数reverse_string,  函数原型为 void reverse_string(char *string); #define NUL '\0' void reverse_string(char *str) { char *tail = str; char *head = str; int len = 0; for (; *tail...
分类:其他好文   时间:2015-05-15 17:43:50    阅读次数:137
【Populating Next Right Pointers in Each Node II】cpp
题目: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 s...
分类:其他好文   时间:2015-05-15 13:21:07    阅读次数:113
LeetCode 问题汇总(算法,难度,频率)
IdQuestionDifficultyFrequencyData StructuresAlgorithms1Two Sum25array + setsort + two pointers2Add Two Numbers34linked listtwo pointers + math3Longest...
分类:编程语言   时间:2015-05-14 13:37:49    阅读次数:1363
【Pointers On C】struct 详解
/************************** * 一. 关于结构变量的声明 * **************************/ //------------------------------------- // 创建一个名叫x的变量 (1) struct { int a; char b; float c; }x; // 创建变量一个数组y, // 包...
分类:其他好文   时间:2015-05-13 12:55:56    阅读次数:109
Populating Next Right Pointers in Each Node -- leetcode
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:2015-05-12 23:09:01    阅读次数:137
leetcode-Populating Next Right Pointers in Each Node
题目描述 Given a binary tree struct TreeLinkNode { TreeLinkNode *left; TreeLinkNode *right; TreeLinkNode *next; } Populate each next pointer to point to its next righ...
分类:其他好文   时间:2015-05-11 09:03:22    阅读次数:100
kSum问题的总结
kSum问题是一类题型,常见的有2Sum,3Sum,4Sum等。这篇博文就来总结一些kSum问题的解法,以及对应的时间复杂度。     1. 2Sum     在一个给定的数组nums中,寻找和为定值target的两个数。     【解法1】:把数组排序,然后使用two pointers的方法来求解。时间复杂度分析:排序O(nlogn),两指针遍历O(n),总体O(nlogn). ...
分类:其他好文   时间:2015-05-07 14:44:35    阅读次数:1856
[leetcode] Populating Next Right Pointers in Each Node
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:2015-05-07 14:23:26    阅读次数:157
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