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Leetcode | Palindrome
Valid PalindromeGiven a string, determine if it is a palindrome, considering only alphanumeric characters and ignoring cases.For example,"A man, a pla...
分类:其他好文   时间:2014-05-12 16:27:07    阅读次数:332
Leetcode | Sum Root to Leaf Numbers
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...
分类:其他好文   时间:2014-05-05 23:55:36    阅读次数:407
/usr/local/lib/libz.a: could not read symbols: Bad value
64位系统中,安装freetype时,出现这个问题。后来发现,此问题进出现在64位系统中。       修复方法: cd zlib-1.2.3 //进入zlib目录 CFLAGS="-O3 -fPIC" ./configure //使用64位元的方法进行编译 make make install        然后,进入freetyp...
分类:其他好文   时间:2014-05-02 23:50:23    阅读次数:397
Validate Binary Search Tree
Given a binary tree, determine if it is a valid binary search tree (BST).Assume a BST is defined as follows:The left subtree of a node contains only n...
分类:其他好文   时间:2014-05-02 15:03:57    阅读次数:386
android ActionBar(官方指导)
安装ActionBar: Support Android 3.0 and Above Only(仅支持3.0版本之后) ... Support Android 2.1 and Above(如果想让应用支持3.1版本之后,需如下操作) 1安装v7 appcompat 库 2Update your activity so that it extends ActionB...
分类:移动开发   时间:2014-05-02 06:52:12    阅读次数:508
[leetcode] Best Time to Buy and Sell Stock
Say you have an array for which theithelement is the price of a given stock on dayi.If you were only permitted to complete at most one transaction (ie...
分类:其他好文   时间:2014-05-02 00:37:20    阅读次数:349
Leetcode | Palindrome Number
Determine whether an integer is a palindrome. Do this without extra space.Some hints:Could negative integers be palindromes? (ie, -1)If you are thinki...
分类:其他好文   时间:2014-05-01 19:48:19    阅读次数:344
Leetcode:Rotate Image 旋转图片
You are given an n x n 2D matrix representing an image. Rotate the image by 90 degrees (clockwise). Follow up: Could you do this in-place? 刚开始没有思路,但是自己举了几个简单的栗子才看出规律:需要一圈儿一圈儿的变换位置。有两层for循环:外...
分类:其他好文   时间:2014-05-01 18:33:34    阅读次数:359
使用ssh过程中对数据库进行update时报错
org.springframework.dao.InvalidDataAccessApiUsageException: Write operations are not allowed in read-only mode (FlushMode.NEVER) - turn your Session into FlushMode.AUTO or remove 'readOnly' marker from transaction definition...
分类:数据库   时间:2014-05-01 18:16:35    阅读次数:377
[ACM] poj 1700 Crossing River (经典过河问题)
Crossing River Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 10212   Accepted: 3855 Description A group of N people wishes to go across a river with only one...
分类:其他好文   时间:2014-04-30 22:21:38    阅读次数:212
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