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Java基础知识
volatile:java关键字,意为易变的,不稳定的,标识修饰java同步字段,示例:java单利模式public class ApplicationCache{ private Map attributeMap; // volatile so that JVM out-of-order...
分类:编程语言   时间:2014-05-19 14:56:56    阅读次数:334
LeetCode:Add Two Numbers
题目链接 You are given two linked lists representing two non-negative numbers. The digits are stored in reverse order and each of their nodes contain a si...
分类:其他好文   时间:2014-05-19 13:53:32    阅读次数:296
【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
SQL 存储过程 分页
-- ============================================= -- Author: *** -- Create date: 2014-03-27 20:00 -- Description: 采用最新的 row_number() over 技术高...
分类:数据库   时间:2014-05-18 06:21:24    阅读次数:317
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
shell timeout
写脚本的时候,经常需要用到超时控制。看《shell专家编程》时看到一个好例:修改了一下,1.超过timeout时间还没执行完,则kill进程,发邮件告警:set-xmailSend(){ mailContent="xxxx Web response time over 5 seconds" echo...
分类:其他好文   时间:2014-05-17 23:30:14    阅读次数:497
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