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LeetCode#17 Letter Combinations of a Phone Number
Problem Definition:Given a digit string, return all possible letter combinations that the number could represent.A mapping of digit to letters (just l...
分类:其他好文   时间:2015-07-30 16:24:09    阅读次数:151
LeetCode206:Reverse Linked List
Reverse a singly linked list. click to show more hints. Hint: A linked list can be reversed either iteratively or recursively. Could you implement both? 使用迭代和递归实现单链表的反转。 迭代的方法之间在剑指offer上面...
分类:其他好文   时间:2015-07-30 13:38:43    阅读次数:114
Single Number II
Given an array of integers, every element appears three times except for one. Find that single one. Note: Your algorithm should have a linear runtime complexity. Could you implement it without using...
分类:其他好文   时间:2015-07-30 00:55:12    阅读次数:139
win7 64位系统 PB连接oracle数据库出现“oracle library oci.dll could not be loaded”问题的解决方法
今天与大家分享一个自己的学习笔记,希望能给遇到同样问题的人带来帮助。 不知道大家在win7 64位系统下用 PB连接oracle数据库时,是否遇到过“oracle library oci.dll could not be loaded”问题。 今天,在win7 64位系统下用 PB连接...
分类:数据库   时间:2015-07-30 00:43:59    阅读次数:30579
postgresql 9.5 版本中JSONB数据类型新增的一些函数与功能
JSONB-modifying operators and functionsIn 9.3 (and to a greater extent in 9.4), JSONB data could be extracted using various functions and operators, b...
分类:数据库   时间:2015-07-30 00:27:42    阅读次数:533
[LeetCode][Java] Sum Root to Leaf Numbers
题目: Given a binary tree containing digits from 0-9 only, each root-to-leaf path could represent a number. An example is the root-to-leaf path 1->2->3 which represents the number 123. Find t...
分类:编程语言   时间:2015-07-29 19:19:56    阅读次数:123
LeetCode234_PalindromeLinkedList (判断是否为回文链表) Java题解
题目: Given a singly linked list, determine if it is a palindrome. Follow up: Could you do it in O(n) time and O(1) space? 题解: 判断一个链表是不是回文的,这里要求O(n)时间复杂度和O(1)的空间时间复杂度,总共想了三种办法,三种办法都用到了两个指针,符合...
分类:编程语言   时间:2015-07-29 12:13:09    阅读次数:136
解决移动铁通宽带CentOS源不可用的问题
问题 [root@bd21?yum.repos.d]#?yum?makecache?????? Loaded?plugins:?fastestmirror http://mirrors.163.com/centos/7/os/x86_64/repodata/repomd.xml:?[Errno?14]?curl#6?-?"Could?not?resol...
分类:移动开发   时间:2015-07-29 01:10:06    阅读次数:282
Design Pattern Explain 读书笔记三——Adapter
What?Convert the interface of a class into another interface that the clients expect. Adapter lets classes work together that could not otherwise because of incompatible inter- faces. ——GOF 先来个例子:...
分类:其他好文   时间:2015-07-29 01:04:53    阅读次数:146
LeetCode138 Copy List with Random Pointer(深度复制带有随机指针的链表) Java题解
题目: 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. 解题: 这题是要复制一个链表,这个链表比...
分类:编程语言   时间:2015-07-28 23:17:43    阅读次数:583
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