码迷,mamicode.com
首页 >  
搜索关键字:level order    ( 23817个结果
android获得ImageView图片的等级
android获得ImageView图片的等级问题要实现的功能如下图,点击分享能显示选中与不选中状态,然后发送是根据状态来实现具体分享功能。在gridview中有5个子项,每个子元素都有两张图片A,B的level设置分别为0,1;点击图片使图片AB切换,前题是要能知道当前图片的等级。但这里只有设置等...
分类:移动开发   时间:2014-05-18 19:36:05    阅读次数:334
postgresql事务的操作二
参照网页: http://www.php100.com/manual/PostgreSQL8/sql-set-transaction.htmlshow transaction isolation level ; 查看事务隔离级别testdb=# show transaction isolation ...
分类:数据库   时间:2014-05-18 19:35:44    阅读次数:470
【Leetcode】Valid Parentheses
Given a string containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid. The brackets must close in the correct order, "()" and "()[]{}" are all vali...
分类:其他好文   时间:2014-05-18 15:11:17    阅读次数:249
LeetCode: Remove Element [026]
【题目】 Given an array and a value, remove all instances of that value in place and return the new length. The order of elements can be changed. It doesn't matter what you leave beyond the new length. 【题意】 删除数组中指定的值。不关心在新数组的后面即数组尾部留下了什么值。 【思路】 思路同Remo...
分类:其他好文   时间:2014-05-18 14:53:56    阅读次数:208
LeetCode--Binary Tree Level Order Traversal
Binary Tree Level Order Traversal  Total Accepted: 12441 Total Submissions: 40879My Submissions Given a binary tree, return the level order traversal of its nodes' values. (ie, from left t...
分类:其他好文   时间:2014-05-18 10:11:13    阅读次数:337
LeetCode: Valid Parentheses [020]
【题目】 Given a string containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid. The brackets must close in the correct order, "()" and "()[]{}" are all valid but "(]" and "([)]" are not. 【题意】 判断给定的字符串是否是合法的...
分类:其他好文   时间:2014-05-18 10:08:11    阅读次数:327
LeetCode: Next Permutation [030]
【题目】 Implement next permutation, which rearranges numbers into the lexicographically next greater permutation of numbers. If such arrangement is not possible, it must rearrange it as the lowest possible order (ie, sorted in ascending order). The replac...
分类:其他好文   时间:2014-05-18 09:54:53    阅读次数:242
LeetCode 015 3Sum
【题目】 Given an array S of n integers, are there elements a, b, c in S such that a + b + c = 0? Find all unique triplets in the array which gives the sum of zero. Note: Elements in a triplet (a,b,c) must be in non-descending order. (ie, a ≤ b ≤ c) The so...
分类:其他好文   时间:2014-05-18 03:15:50    阅读次数:287
关于“单例模式”的另外一种实现
传统单例模式的实现有懒汉、饿汉等模式,也有双锁机制(防止不必要的线程再度进入锁的临界区实例化单例模式的全局变量)。不过据说(未经考证)在VS中CPU开启“out-of-order execution”,仍然会导致出问题,原因在于: 我们假设a和b线程同时试图初始化单例模式的全局变量,a先进入方...
分类:其他好文   时间:2014-05-18 00:21:37    阅读次数:268
Mysql 高效随机生成N条记录
1 select *, rand() as random FROM yef_exercises where id not in(1) order by random limit 1 // Mysql
分类:数据库   时间:2014-05-17 18:58:42    阅读次数:370
© 2014 mamicode.com 版权所有  联系我们:gaon5@hotmail.com
迷上了代码!