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Codeforces Round #FF (Div. 2) C - DZY Loves Sequences (DP)
DZY has a sequence a, consisting of n integers. We'll call a sequence ai,?ai?+?1,?...,?aj (1?≤?i?≤?j?≤?n) a subsegment of the sequence a. The value (j?-?i?+?1) denotes the length of the subsegmen...
分类:其他好文   时间:2014-09-16 15:57:40    阅读次数:248
Codeforces Round #266 (Div. 2) D. Increase Sequence
Peter has a sequence of integers a1,?a2,?...,?an. Peter wants all numbers in the sequence to equal h. He can perform the operation of "adding one on the segment [l,?r]": add one to all elements of t...
分类:其他好文   时间:2014-09-16 14:18:20    阅读次数:259
php has encountered an access violation
今天服务器装系统,配置完php环境后连接数据库包php has encountered an access violation错误:环境:win2008 R2php 5.2.9IIS7mysql 5.1采用isapi方式配置调试很长时间没有解决,最后采用fastcgi方式解决。
分类:数据库   时间:2014-09-16 14:11:10    阅读次数:173
HDU 5014 Number Sequence(贪心)
当时想到了贪心,但是不知为何举出了反列。。。。我是逗比,看了点击打开链接。才发现我是逗比。 Problem Description There is a special number sequence which has n+1 integers. For each number in sequence, we have two rules: ● ai ∈ [0,n]  ●...
分类:其他好文   时间:2014-09-16 02:44:19    阅读次数:276
Apache CloudStack Features
As a mature and turnkey Infrastructure-as-a-Service (IaaS) platform, Apache CloudStack has a comprehensive set of features. This is an extensive, but ...
分类:其他好文   时间:2014-09-15 22:43:29    阅读次数:291
HDU5014:Number Sequence
Problem Description There is a special number sequence which has n+1 integers. For each number in sequence, we have two rules: ● ai ∈ [0,n]  ● ai ≠ aj( i ≠ j ) For sequence a and sequence b,...
分类:其他好文   时间:2014-09-15 21:22:10    阅读次数:240
在Struts2中使用poi进行excel操作下载的时候报getOutputStream() has already been called for this response 错误 [转]
在项目中用到了poi这个开源的操作excel文件的jar.项目中用到struts2容器管理servlet.不是单纯的直接用servlet.workbook.write(os);os.flush();os.close();return "SUCCESS";在我的action中用是这样处理最后的传出.但...
分类:其他好文   时间:2014-09-15 21:04:19    阅读次数:212
LeetCode Solutions : Path Sum I & II
Path Sum Given a binary tree and a sum, determine if the tree has a root-to-leaf path such that adding up all the values along the path equals the given sum. For example: Given the below binary...
分类:其他好文   时间:2014-09-15 17:54:12    阅读次数:229
django搜索页面,并解决“Related Field has invalid lookup: icontains”错误
django版本1.4.5一般网站都是需要搜索栏目的,我的项目也需要,于是做了首先,写视图 1 #这个并不是我的项目,仅仅用它做个例子,解决相关问题 2 from django.db.models import Q 3 from models import Book 4 5 def search(....
分类:其他好文   时间:2014-09-15 17:26:09    阅读次数:226
LeetCode:Maximum Subarray
Find the contiguous subarray within an array (containing at least one number) which has the largest sum.For example, given the array[?2,1,?3,4,?1,2,1,...
分类:其他好文   时间:2014-09-15 15:46:19    阅读次数:183
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