给出两个 非空 的链表用来表示两个非负的整数。其中，它们各自的位数是按照 逆序 的方式存储的，并且它们的每个节点只能存储 一位 数字。
Vasya has n days of vacations! So he decided to improve his IT skills and do sport. Vasya knows the following information about each of this n days: whether that gym opened and whether a contest was carried out in the Internet on that day. For the i-th day there are four options:
在上篇讨论里我们主要介绍了Akka-Cluster的基本原理。同时我们也确认了几个使用Akka-Cluster的重点：首先，Akka-Cluster集群构建与Actor编程没有直接的关联。集群构建是
pipeline不理想的情况主要有两类，一类是影响II的，一类是不影响II的。影响II的会导致II值大于1，不影响II的称为Serial Regions。
分析综合结果的方法： ＊ 首先分析对于添加的优化指令是否综合实现，若不能实现，原因是什么？ ＊ 然后分析代码pipeline的情况。SDAccel对于嵌套的for循环来讲：pipeline内层的for循环全部unroll，pipeline外层的for循环试图进行Flattening，Flatten成功则统一到一个pipeline中。 ＊ 对于pipeline的循环进一步分析II值是多少，理论能优化到多少？
Scala 混合了面向对象和函数式的特性，在函数式编程语言中，函数是“头等公民”，它和Int、String、Class等其他类型处于同等的地位，可以像其他任何数据类型一样被传递和操作。
设立一个表示进位的变量carried，建立一个新链表，把输入的两个链表从头往后同时处理，每两个相加，将结果加上carried后的值作为一个新节点到新链表后面。
前言 看完题目大意，先思考，再看解析；觉得题目大意不清晰，点击题目链接看原文。 A 题目链接 题目大意：n个点，坐标x[i]从小到大，每个点可以选择Left或者Right的方向前进，速度v=1，求相遇的时间。 代码实现： int right = -1; for (int i = 0; i < n; ++i) { if (str[i] == 'R') { right = i; } else {
【导读】专知内容组整理了最近目标检测相关文章，为大家进行介绍，欢迎查看! 1. MSDNN: Multi-Scale Deep Neural Network for Salient Object Detection（MSDNN: 基于多尺度深度神经网络的显著目标检测） ---- 作者：Fen Xiao,Wenzheng Deng,Liangchan Peng,Chunhong Cao,Kai Hu,Xieping Gao 摘要：Salient object detection is a fundamenta
每天学习编程，让你离梦想更新一步，感谢不负每一份热爱编程的程序员，不论知识点多么奇葩，和我一起，让那一颗四处流荡的心定下来，一直走下去，加油，2021加油！欢迎关注加我vx:xiaoda0423，欢迎点赞、收藏和评论
scala 混合了面向对象和函数式的特性，在函数式编程语言中，函数是“头等公民”，它和Int、String、Class等其他类型处于同等的地位，可以像其他类型的变量一样被传递和操作。
Intrusion detection systems (IDSs) are different from traditional firewall products because they are designed to detect a security breach. Intrusion detection is the process of detecting an unauthorized use of, or attack upon, a computer, network, or telecommunications infrastructure.
今天为大家分享一篇比特币高频交易的文章，以项目形展示，附有代码，大家可以从文末进行下载。
R语言中存在一些null-able values，当我们进行数据分析时，理解这些值是非常重要的。
近来发现很多刚入行的朋友在后台提问，有些问题，是由于对软件测试还没有一个正确的认识引起的。
在很多行业里，存在这样的业务场景：生产部门的生产，主要分2大块。第一块是生产出半成品，第二块是将半成品包装成成品用于销售给客户。在一些行业里，成品的批次号跟所包装的半成品批次号是有关系的，比如二者成品号相同，这样比较方便业务人员识别与追溯，并在在这些行业里，成品的生产日期/有效期等关键属性也跟对应的半成品的批次属性保持一致。在这些行业的企业实施SAP项目的时候，对于这个场景需要SAP系统能提供解决方案。
SAP RETAIL MP30为物料Execute Forecast，报错- Status Forecast not defined –
Breakdown voltage increased from 125V to 375V and stability at raised temperature improved compared with conventional design with source field-plate.
数据缺失是数据科学家在处理数据时经常遇到的问题，本文作者基于不同的情境提供了相应的数据插补解决办法。没有完美的数据插补法，但总有一款更适合当下情况。
Graphical representation of allelic heterogeneity at a locus with common and low frequency/rare variant associations with a complex trait. Turquoise bars represent trait-related variants carried by different individuals at a locus of interest. Bar width represents variant frequency (wider bars denote variants with higher frequency). Single-point association analysis of the low frequency/rare variants has extremely low power, but composite analysis by considering all variants of interest locus-wide is a more powerful alternative.
In the consumption process, the system compares planned independent requirement quantities and dates with actual customer requirements. The consumption process is defined for every planning strategy in Customizing for Demand Management by combining a requirements
周末尝试了一下React新的hooks功能,来封装一个组件，遇到一个bug，所以记录一下过程！
figure cited here, recommend reading: A step by step explanation of Principal Component Analysis
A risk assessment, which is really a tool for risk management, is a method of identifying vulnerabilities and threats and assessing the possible impacts to determine where to implement security controls.After a risk assessment is carried out, the results are analyzed. Risk analysis is used to ensure that security is cost effective, relevant, timely, and responsive to threats.
LB11将TR转成TO单据的时候，我们常常发现，生成的TO单据里的数量并不是等于TR里的数量，而是系统自动根据目的地storage type 100下的库存数量自动扣减之后的数量作为生成的TO的数量。原因何在？
The recovery time objective (RTO) is the maximum time period within which a business process must be restored to a designated service level after a disaster to avoid unacceptable consequences associated with a break in business continuity.
Administrative management is a very important piece of operational security. One aspect of administrative management is dealing with personnel issues. This includes separation of duties and job rotation. The objective of separation of duties is to ensure that one person acting alone cannot compromise the company’s security in any way.
A transmission medium is a physical thing through which data is moved. three different types of transmission media: electrical wires, optical fibers, and free space.
An assurance evaluation examines the security-relevant parts of a system, meaning the TCB, access control mechanisms, reference monitor, kernel, and protection mechanisms. The relationship and interaction between these components are also evaluated in order to determine the level of protection required and provided by the system.
2.1), In principle, the program calculates the planned date of physical inventory according to the following formula: planned date = base date + Interval (Trans.OMCO/Tab.XT159C-ININV) Usually, the base date is the 'date of the last physical inventory'. Depending on the type of the stock or the batch management requirement, this date is read from one of the following table fields: MARD-DLINL (Normal materials) MCHB-CHDLL (Batch materials, separately valuated materials) If no physical inventory has been carried out yet and if this date field is therefore empty, the system uses the creation date of the material as basis date. The basis date then comes from one of the following table fields: MSTA-ERSDA (Normal materials) MCHB-ERSDA (Batch materials, separately valuated materials) Since the cycle counting physical inventory always runs for the current fiscal year, the earliest possible physical inventory date is the 01.01. and the latest possible physical inventory date is the 31.12 of the current year.
The first piece to building a security foundation within an organization is a security policy. It is management’s responsibility to construct a security policy and delegate the development of the supporting procedures, standards, and guidelines; indicate which personnel controls should be used; and specify how testing should be carried out to ensure all pieces fulfill the company’s security goals. These items are administrative controls and work at the top layer of a hierarchical access control model.
When a potential computer crime takes place, it is critical that the investigation steps are carried out properly to ensure that the evidence will be admissible to the court if things go that far and that it can stand up under the cross-examination and scrutiny that will take place.
There have been several software development life cycle (SDLC) models developed over the years, the crux of each model deals with the following phases:
这个同等规模正常人的频率，可以在其它癌症患者的BRCA基因基因筛查研究用上吧，比如前面的：华西医院检测五百多乳腺癌患者的BRCA基因
Sekiro: Shadows Die Twice is an action-adventure video game developed by FromSoftware and published by Activision. In the game, the players act as a Sengoku period shinobi known as Wolf as he attempts to take revenge on a samurai clan who attacked him and kidnapped his lord.
Problem Description There are many lamps in a line. All of them are off at first. A series of operations are carried out on these lamps. On the i-th operation, the lamps whose numbers are the multiple of i change the condition ( on to off and off to on ).
最近有个需求要开放 FTP 服务给别人下载日志，因此装上了 vsftpd。但是在登录过程中提示 530 Login incorrect。查阅了一些资料记录一下解决方法。
Quantitative trading is generally carried out through robots,which means that advanced mathematical models are used to replace human subjective judgment,and computer technology is used to select a variety of"high probability"events that can bring excess returns from data to formulate strategies.At present,there are many quantitative trading robots.There is a probability to make profits through quantitative trading.It can only be said that through quantitative trading robots,they make money in most cases.
DEA is the algorithm that fulfills DES, which is really just a standard.
01 概述 What is Farmer BOB 韩国设计师JO YOUNG WOON在大学时主攻设计，并曾留学日本两年，2016年和2017年在Tokyo Design Festa崭露头角。家乡在韩国光州，巧合下与同为设计师的女朋友一起加入ARTTOY的制作行列。WHAT THE FARMER设定中主角BOB是一名农民，不过造型和配件方面均没有传统农民的感觉。BOB之名，取自设计师喜欢的画家BOB ROSS 和雷鬼音乐人BOB MARLEY。 JO YOUNG WOON,a South Kor
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C.62: Make copy assignment safe for self-assignment C.62:保证拷贝赋值对自我赋值安全
其中差异分析我们使用了limma/voom，edgeR，DESeq2这3个流程，很多朋友比较感兴趣到底应该是选择哪一个，而且它们的区别是？
A modem (modulator-demodulator) is a device that modulates an outgoing digital signal into an analog signal that will be carried over an analog carrier, and demodulates the incoming analog signal into digital signals that can be processed by a computer.
Abstract：Energy consumption has become a crucial problem in the design of vehicle routing problems, hence the need to use another delivery method powered by batteries. Unmanned aerial vehicles have become fundamental tools in tasks for which man has limited skills that prevent a superlative optimization of time. The increasing use of drones by commercial companies such as Amazon, Google, and DHL has given birth to a new variant of vehicle routing problem (VRP) called VRP with drones (VRPD) which has a positive influence on the environment. Where vehicles and drones are used to deliver packages or goods to customers. In VRPD, vehicles and drones make dependent or independent deliveries. In the case of a dependent delivery, at a given point (customer or depot) the drone takes off from a vehicle to serve a customer and then return to travel with the same vehicle, as long as the capacity and endurance constraints for a drone are satisfied. In the other case, each type of vehicle travels independently to others. A MILP model is presented to describe the problem, and then we confirm the formulation via a CPLEX software with small instances. We propose a hybrid genetic algorithm to solve the VRPD. Experiments are carried out on the instances taken from the literature in different settings. The results show the performance of the proposed algorithm to solve this variant.
#使用scipy模块 求定积分 from numpy import e,pi,inf,sqrt, sin, cos, tan,arctan from scipy.integrate import quad, dblquad, tplquad, nquad # 一重积分 def f(x): return x*x v, err = quad(f,-1,1) #第二个参数为积分下限，第三个参数为积分上限 # quad 返回一个元组，第一个元素为定积分的值，第二个为偏差 print(v,err) #积分上
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