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Time, Delays, and Deferred Work <LDD3> 学习笔记 + jiffies.h 分析
Time, Delays, and Deferred Work  Dealing with time involves the following tasks, in order of increasing complexity: ? Measuring time lapses and comparing times ? Knowing the cur...
分类:其他好文   时间:2014-08-12 00:41:13    阅读次数:484
apache 提示You don't have permission to access /test.php on this server.怎样解决
把denty改成allowhttpd.conf文件中。 AllowOverride None Options None Order allow,denyDeny from all -->将所有的Deny改成Allow
分类:数据库   时间:2014-08-11 20:47:53    阅读次数:247
POJ 2013 Symmetric Order
B - Symmetric Order(3.3.1) Time Limit:1000MS     Memory Limit:30000KB     64bit IO Format:%I64d & %I64u Submit Status Practice POJ 2013 Description In your job at Albatross Circus ...
分类:其他好文   时间:2014-08-11 17:54:22    阅读次数:202
查询每个人的订单总额,多表关联
孤狼前不久写了个存储过程,大概内容就是查询每个人的订单总额,用的是表关联,执行速度还可以。如果有哪位大神有更好的建议或者有什么疑问,欢迎能够多多指出。 有下面两张表 UserInfo表Order表 如果要查询每个人的订单总额,方法一就是用循环,但是此方法不但复杂,而且执行速度很慢,孤狼...
分类:其他好文   时间:2014-08-11 11:44:02    阅读次数:218
leetcode 刷题之路 70 earch Insert Position 二分查找插入位置
Given a sorted array and a target value, return the index if the target is found. If not, return the index where it would be if it were inserted in order. You may assume no duplicates in the array....
分类:其他好文   时间:2014-08-10 18:48:50    阅读次数:203
ZOJ2599:Graduated Lexicographical Ordering(非常经典的数位DP)
Consider integer numbers from 1 to n. Let us call the sum of digits of an integer number its weight. Denote the weight of the number x as w(x). Now let us order the numbers using so called graduated ...
分类:其他好文   时间:2014-08-10 18:47:20    阅读次数:406
【leetcode】Add Two Numbers 解析以及拓展
题目: 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 single digit. Add the two numbers and return it as a linked list. Input: (2 -> 4 -> 3) + (5 -> 6 -> 4) Outpu...
分类:其他好文   时间:2014-08-10 13:08:30    阅读次数:296
ubuntu12.04更新软件源时出现校验和不符
在执行update命令之后,出现系统校验和不符,网上找了一些方法,最后在大神的帮助下终于解决了!! 1.更改 /etc/apt/apt.conf.d/00aptitude 文件,在最后一行加入:Acquire::CompressionTypes::Order "gz"; 然后执行 update就可以了。 (我是用这个方法解决的) 2.在软件更新管理器中点击右下角的“设置”,在其它软件中...
分类:其他好文   时间:2014-08-10 13:07:30    阅读次数:219
leetcode 刷题之路 63 Binary Tree Zigzag Level Order Traversal
Given a binary tree, return the zigzag level order traversal of its nodes' values. (ie, from left to right, then right to left for the next level and alternate between). zigzag层序遍历树 For example: Given binary...
分类:其他好文   时间:2014-08-09 23:19:59    阅读次数:363
HDU 4923 Room and Moor (多校第六场C题) 单调栈
Problem Description PM Room defines a sequence A = {A1, A2,..., AN}, each of which is either 0 or 1. In order to beat him, programmer Moor has to construct another sequence B = {B1, B2,... , BN} of...
分类:其他好文   时间:2014-08-09 21:34:09    阅读次数:365
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