[BZOJ1202] [NZOI2005], a crafty businessman.

Description Diao Biao received a task for the tax department to investigate the accounts of a businessman to see if the accounts were forged. The book records income over the past n months, of which the income for the first month is Ai (i = 1,2,3…n-1,n). When Ai is greater than 0, this month is full.Li Ai yuan, when Ai is less than 0, that this month loss Ai yuan. The total income in a period of time is the sum of the monthly income in this period. Diao Biao’s task was carried out in secret. In order to investigate the account books of the businessmen, she had to go to the busine...

Detected running with administrator privileges

Detected running with administrator privileges @echo off echo OFF NET SESSION >nul 2>&1 IF %ERRORLEVEL% EQU 0 ( ECHO Administrator PRIVILEGES Detected! ECHO Detected running with administrator privileges! ) ELSE ( echo ######## ######## ######## ####### ######## echo ## ## ## ## ## ## ## ## ## echo ## ## ## ## ## ## ## ## ## echo ###### ######## ######## ## ## ######## echo ## ## ## ## ## ## ## ## ## echo ## ## ## ## ## ## ## ## ## ...

leetcode 406. Queue Reconstruction by Height

Suppose you have a random list of people standing in a queue. Each person is described by a pair of integers (h, k), where h is the height of the person and k is the number of people in front of this person who have a height greater than or equal to h. Write an algorithm to reconstruct the queue. Note: The number of people is less than 1,100. Example Input: [[7,0], [4,4], [7,1], [5,0], [6,1], [5,2]] Output: [[5,0], [7,0], [5,2], [6,1], [4,4], [7,1]] Given a pair of input sequences, rearrange so that for the first pair [h, k] he has a pair of K greater than or equal to h in front of him. Ide...

Unity3d releases IOS’s process – Xiao Bai chapter (1)

  After all, it’s a piece of cake, so the first thing to do is configure the environment. I’m using Unity 2018.2.1f1, Xcode 9.4.1, MAC 10.13.4. (You don’t have to use mac, wind to publish Xcode projects with UnityOws can also be released, but the released project will eventually need to be opened with Xcode software on the MAC computer, as we’ll see later). Apple’s development process did not touch the time feel: grasp grass, apple so tall things, feel so complicated and complex ah! When you successfully publish aWhen you are in the product, you will feel: Th...

HashMap to ensure the uniqueness of keys to cover the reasons for equals and hashCode?

Problem Guidance: In the process of learning HashMap, you will encounter the question that to ensure the uniqueness of the key, you need to override the hashCode method, and the equals method.Why do we need to cover the hashCode method and the equals method in order to ensure the uniqueness of the key?   The analysis process is as follows: HashMapProcess: 1.Each object generates a shaping value (hash code) through the hashCode () method. 2.Handling hash codes: In the case of HashMap inserting objects and querying objects, the following processes are performed: 1.HashMapIt checks to see if th...

Go language learning seven – go Stack

package stack import "errors" type Stack []interface{} func (s *Stack) Len() int { return len(*s) } func (s *Stack) Cap() int { return cap(*s) } func (s *Stack) Push(x interface{}) *Stack { *s = append(*s, x) /** If it is changed toZ: = append (*s, x)S = & Z1. Instead of assigning a function return value to a variable, address a function directly: like this: s = amp; (append (* s, x))It is not allowed.The reason may be that the return value of a function is a local variable that is scoped inside the function, and if no value is passed to an external calle...

Summary of basic knowledge of computer network

[Reprint] 1.Network level division In order to enable computers produced by different computer manufacturers to communicate with each other so as to establish computer networks in a wider range, the International Organization for Standardization (ISO) in 1978 proposed the Open System Interconnection Reference Model (OSI/RM Model).Nterconnection/Reference Model). It divides the communication protocol of computer network architecture into seven layers, which are Physics Layer and Data Link Lay from bottom to top.Er, Network Layer, Transport Layer, Session Layer, Presentation Layer, Applicati...