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csp-s91 T2 Cicada与排序

 ̄綄美尐妖づ 提交于 2019-12-03 03:57:40
颓到了yzh的正常版dp定义和讲解 考虑题目随机的部分在于相同数之间的选择,要求的部分是最终的位置 由于总体考虑复杂且n比较小考虑对每个数去跑归并,设g[i][j]表示左右指针分别在i,j的概率 那么局面发生的概率就得知并且该放哪个数也可得知 再设一个f数组用来求答案,f[i][j]表示对于编号为i的分治节点当前处理的数放在j的概率 到着推一开始f[k][pos]=1; 那么f[k][i-1+j-mid][j]=f[k<<1][i]*g[i][j]*fir+f[k<<1|1][j]*g[i][j]*sec; fir和sec由比较结果确定是0.5还是1或0。 将局面发生的概率确定下来 复杂情况下考虑固定一种情况来做 不要memset,f数组很大且有无用内存。 来源: https://www.cnblogs.com/three-D/p/11775846.html

CXF client: unable to find valid certification path to requested target

匿名 (未验证) 提交于 2019-12-03 02:16:02
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: I am trying to implement a client for a CXF-based web service that I also wrote. My web service works great (tested working fine via soapUI), but running the client fails with the following: Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:323) The message clearly points at a certificate problem, so I did a quick search and

Spring security error with access-denied-handler tag

匿名 (未验证) 提交于 2019-12-03 01:44:01
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: i have added the access-denied-handler tag to redirect to an specific page when my app handles a AccessDeniedException but i have the error: Configuration problem: Failed to import bean definitions from relative location [pgm-security-cas.xml] Offending resource: class path resource [spring/pgm-servlet.xml]; nested exception is org.springframework.beans.factory.xml.XmlBeanDefinitionStoreException: Line 92 in XML document from class path resource [spring/pgm-security-cas.xml] is invalid; nested exception is org.xml.sax.SAXParseException: cvc

时分秒与秒互转的两个小方法

蓝咒 提交于 2019-12-03 01:40:35
1 // 普通时间格式转成秒 2 var timeToSec = function (time) { 3 var timeArr = time.split(':') 4 var hour = timeArr[0] 5 var minute = timeArr[1] 6 var sec = timeArr[2] 7 8 return Number(hour * 3600) + Number(minute * 60) + Number(sec) 9 } 10 11 12 // 秒转为普通时间 13 var secToTime = function (s) { 14 var hour = parseInt(s / 3600) 15 var minute = parseInt((s - (hour * 3600)) / 60) 16 var sec = s - (hour * 3600) - (minute * 60) 17 18 var H = hour > 9 ? hour : '0' + hour 19 var M = minute > 9 ? minute : '0' + minute 20 var S = sec > 9 ? sec : '0' + sec 21 22 return H + ':' + M + ':' + S 23 } 来源: https://www

Spring MockMvcBuilders Security filter

匿名 (未验证) 提交于 2019-12-03 00:52:01
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: I have manage to create REST API with spring mvc. My purpose was about to protect a resource with JWToken. Now i am trying to write three Test : 1. Get the Token with granted user/password Authentication Fail => test:OK 2. Get the Token with not granted user/password Authentication success => test:OK 3. Get the protected resource without providing the Token => test:fail because my rest service give the protected resource .... Here is my REST controller: @Component @RestController @RequestMapping(value="/protected") public class

初涉CIFAR10+tensorflow: (win10环境)学习笔记

匿名 (未验证) 提交于 2019-12-03 00:19:01
历经千辛万苦,我终于搞到了CIFAR10的数据集 正常来说: cifar10.maybe_download_and_extract() 就可以的,然而,连接服务器超时 不废话上干货 首先是下载cifar-10的控制文件,git一下,没git的下一下。小黑窗输入: git clone https://github.com/tensorflow/models.git 然后打开对应的文件夹进入一下路径:/models/tutorials/image/cifar10 在中个文件夹下建你的py文件。 然后,试跑下面这个代码: import cifar10 cifar10.maybe_download_and_extract() 如果成了,万事大吉。如果不行,手动下载吧。下好后建文件夹: ./tmp/cifar10_data/cifar-10-batches-bin 解压下载文件把里面的内容copy过去就可以了 下载链接: 度娘(良心如我,不要积分) 密码:qsp2 讲解和代码在一起,还有我跑的结果: import cifar10,cifar10_input import tensorflow as tf import numpy as np import time #cifar10:https://zhuanlan.zhihu.com/p/27017189; #tf:https://blog

时分秒与秒互转的两个小方法

匿名 (未验证) 提交于 2019-12-03 00:15:02
1 // 普通时间格式转成秒 2 var timeToSec = function (time) { 3 var timeArr = time.split(':') 4 var hour = timeArr[0] 5 var minute = timeArr[1] 6 var sec = timeArr[2] 7 8 return Number(hour * 3600) + Number(minute * 60) + Number(sec) 9 } 10 11 12 // 秒转为普通时间 13 var secToTime = function (s) { 14 var hour = parseInt(s / 3600) 15 var minute = parseInt((s - (hour * 3600)) / 60) 16 var sec = s - (hour * 3600) - (minute * 60) 17 18 var H = hour > 9 ? hour : '0' + hour 19 var M = minute > 9 ? minute : '0' + minute 20 var S = sec > 9 ? sec : '0' + sec 21 22 return H + ':' + M + ':' + S 23 } 来源:博客园 作者: Web初心 链接

Xilinx 7 Series万兆网IP使用

匿名 (未验证) 提交于 2019-12-03 00:05:01
方法 万兆网IP,axi-dma,axi-pcie-bridge,搭建一个基于FPGA的万兆网卡,移植petalinux-2015.2.1的驱动到Ubuntu16.04.6上,测试结果如下, qe@qe - pc :~ /project$ ./ iperf3 - s ----------------------------------------------------------- Server listening on 5201 ----------------------------------------------------------- Accepted connection from 192.168 . 10.6 , port 6668 [ 5 ] local 192.168 . 10.8 port 5201 connected to 192.168 . 10.6 port 6669 [ ID ] Interval Transfer Bandwidth [ 5 ] 0.00 - 1.00 sec 231 MBytes 1.93 Gbits / sec [ 5 ] 1.00 - 2.00 sec 235 MBytes 1.97 Gbits / sec [ 5 ] 2.00 - 3.00 sec 233 MBytes 1.96 Gbits / sec [ 5 ] 3

msyql 主从切换

匿名 (未验证) 提交于 2019-12-02 23:55:01
从库是192.168.1.70 ,主库是192.168.1.64,主从切换一次 即:主库是192.168.1.70,从库是192.168.1.64 修改从库为非只读库 修改配置 /etc/my.cnf read_only = 1 重启mysql service mysqld_3306 restart mysql> stop slave io_thread; Query OK, 0 rows affected (0.07 sec) mysql> show slave status\G; *************************** 1. row *************************** Slave_IO_State: Master_Host: 192.168.1.64 Master_User: zabbix64 Master_Port: 3306 Connect_Retry: 60 Master_Log_File: mysql-bin.000147 Read_Master_Log_Pos: 49072513 Relay_Log_File: relay-bin-3306.000179 Relay_Log_Pos: 17594196 Relay_Master_Log_File: mysql-bin.000147 Slave_IO_Running: No Slave

day35 数据操作补充和单表操作

空扰寡人 提交于 2019-12-02 23:25:47
目录 day35 数据操作补充和单表操作 今日内容概要 昨日内容回顾 今日内容详细 数据操作补充 单表查询 day35 数据操作补充和单表操作 今日内容概要 数据操作补充 增 删 改 单表查询 昨日内容回顾 基础数据类型: 数字类型:tinyint,int,float(7,2),decimal 时间类型:datetime,date,time 字符串类型:char定长浪费空间存取快 varchar变长节省空间存取慢 枚举和集合:enum()单选 set()多选和去重 约束 unsigned not null default unique/联合 primary key/联合 auto_increment(依赖unique条件) foreign key(依赖关联字段的unique条件) on update cascade on delete cascade 表与表之间的关系 一对多/多对一:foreign key 一对一:foreign key + unique 多对多:创建第三张表 创建表 create table 表名( 字段名 类型(长度) 约束 约束2) 删除表 drop table 表名; 修改表 alter table 表名 add/drop/modify/change/rename ... xxx; 查看表结构 desc 表名; describe 表名; show