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Copy List with Random Pointer--LeetCode
A linked list is given such that each node contains an additional random pointer which could point to any node in the list or null. Return a deep copy of the list. 这是一道链表操作的题目,要求复制一个链表,不过链表的每个结点...
分类:其他好文   时间:2015-04-14 16:50:18    阅读次数:133
从NullObject谈C#6.0改进
前言 本文来聊一聊我们经常会做的空值检查问题,从一个简单的空值检查Any Where,到设计模式的NullObjectPattern,再到C#6.0“可能”会提供的语法,让我们体验一次语言开发上的“持续改进”,Let’s go~什么是空引用异常 作为一个敲过代码的码农来说,似乎没有谁没有遇到过Nul...
分类:Windows程序   时间:2015-04-14 14:34:35    阅读次数:190
python_codea_412
python :‘’and “”any differences? python 可以类似 matlab 用1:n索引数组 arr[2:len(arr)] 从0计数 Pulling in just a single function from a module is called a function...
分类:编程语言   时间:2015-04-14 09:55:07    阅读次数:167
文章标题
今天使用Eclipse新建Maven项目时报错,错误日志如下: Could not resolve archetype org.apache.maven.archetypes:maven-archetype-webapp:RELEASE from any of the configured repositories. Could not write artifact lastUpdated st...
分类:其他好文   时间:2015-04-14 00:47:16    阅读次数:261
Uva1586 - Molar mass
问题描述: An organic compound is any member of a large class of chemical compounds whose molecules contain carbon. The molar mass of an organic compound is the mass of one mole of the organic compound...
分类:其他好文   时间:2015-04-13 19:01:49    阅读次数:149
Root of AVL Tree
An AVL tree is a self-balancing binary search tree. In an AVL tree, the heights of the two child subtrees of any node differ by at most one; if at any...
分类:其他好文   时间:2015-04-13 18:14:58    阅读次数:243
[LeetCode] Binary Tree Maximum Path Sum
Given a binary tree, find the maximum path sum.The path may start and end at any node in the tree.For example:Given the below binary tree, 1 ...
分类:其他好文   时间:2015-04-13 18:14:54    阅读次数:111
ssh-copy-id报错: Host key verification failed
/workspace:$ ssh-copy-id root@10.103.xx.xx -p 22022/usr/local/bin/ssh-copy-id: INFO: attempting to log in with the new key(s), to filter out any that ...
分类:其他好文   时间:2015-04-13 16:27:46    阅读次数:2098
SDUT 3185 Lexicography(排列问题(不会))
Lexicography Time Limit: 1000ms   Memory limit: 65536K  有疑问?点这里^_^ 题目描述 An anagram of a string is any string that can be formed using the same letters as the original. (We consi...
分类:其他好文   时间:2015-04-13 11:02:49    阅读次数:115
#10 Regular Expression Matching
Implement regular expression matching with support for'.'and'*'.'.' Matches any single character.'*' Matches zero or more of the preceding element.The...
分类:其他好文   时间:2015-04-11 20:41:45    阅读次数:114
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