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Majority Element
题目: Given an array of size n, find the majority element. The majority element is the element that appears more than ? n/2 ? times. You may assume that the array is non-empty and the majority...
分类:其他好文   时间:2015-01-19 09:17:18    阅读次数:194
Leetcode: Binary Tree Upside Down
Given a binary tree where all the right nodes are either leaf nodes with a sibling (a left node that shares the same parent node) or empty, flip it up...
分类:其他好文   时间:2015-01-19 09:07:58    阅读次数:134
average slice
A non-empty zero-indexed array A consisting of N integers is given. A pair of integers (P, Q), such that 0 ≤ P < Q < N, is called a slice of array A (...
分类:其他好文   时间:2015-01-18 20:56:08    阅读次数:107
Cannot access empty property
致命错误:不能够进入此空值,位于E:\sunlion\web\down\class\db_sql.php代码 $class2 = new TestClass2();}}Class TestClass2{var $aaaa="1111111";}$ccc = new TestClass1();echo...
分类:数据库   时间:2015-01-18 07:06:07    阅读次数:219
Unique Paths II (dp题)
Follow up for "Unique Paths":Now consider if some obstacles are added to the grids. How many unique paths would there be?An obstacle and empty space i...
分类:其他好文   时间:2015-01-16 23:38:32    阅读次数:178
对一个链接里面未加密的参数进行加密,其中有json对象
代码: protected string FormatUrlEncode(string url) { string result = string.Empty; if (url.IndexOf("?") list = new List()...
分类:Web程序   时间:2015-01-16 19:00:10    阅读次数:173
Memcached 一致性hash分布式算法
1 _hasher = $hash ? $hash : new Crc32HashWay(); 41 if(!empty($replicas))$this->_replicas = intval($replicas); 42 } 43 44 ...
分类:编程语言   时间:2015-01-16 18:56:36    阅读次数:203
获得具体某一天的前一天日期
根据所给的某一天的日期获取该日期前一天的时间的封装的方法:function getYesterday($date){ if(empty($date)){ $yesterday = date("Y-m-d",strtotime("-1 day")); }else{ $arr = explo...
分类:其他好文   时间:2015-01-16 18:34:18    阅读次数:142
php数据库两个关联大表的大数组分页处理,防止内存溢出
$ret = self::$db->select($tables, $fields, $where, $bind); if (!empty($ret)) { $retIds = array(); $ids = array();...
分类:数据库   时间:2015-01-16 16:07:06    阅读次数:258
LeetCode--Majority Element
Given an array of size n, find the majority element. The majority element is the element that appears more than ? n/2 ? times. You may assume that the array is non-empty and the majority element ...
分类:其他好文   时间:2015-01-16 14:52:09    阅读次数:176
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