Niu Ke Xiao Bai Yue Sai 7-D Ming Qi Dark Seven

... 思维:Digital DP+ two points. The number of satisfied conditions from 1 to n can be obtained by using the digital DP, and for the specific number, the binary search can be used to solve dp[i][j][k]: the first i-bit remainder For j, is there a number of 7 Code: #include<iostream> ...


Crash caused by iOS-reloadSections(UITableView)

... In the development of iOS, UITableView is one of the most frequently used UI components. However, UITableView is very easy to cause "NSInternalInconsistencyException" to crash. Among them, when you call reloadSections, you will be triggered if you don't pay attention....


Pat B grade 1001 killing people do not pay for (3n+1) conjecture

... 卡拉tz (Callatz) guess: for any positive integer n, if it is even, then cut it half; if It is odd, then cut (3n+1) in half. This has been repeatedly cut down, and finally must get n=1 at a certain step. Karaz announced this conjecture at the World Mathematicians Conference in 1950. It was...


Yii2 send mail

... config.php configuration mailer' => [ 'class' => 'yii\swiftmailer\Mailer', 'useFileTransport' => false, / / ​​false send mail, true just generate mail in the runtime folder, do not send mail 'transport' => [ 'class' => 'Swift_SmtpTransport', 'host' => 'smtp.exmail.qq...


Charles installation application guide - installation and agency articles

... Charles is a very commonly used agent software in the development test process, also wrote a basic use before. Recently, a new colleague used this one for the first time, and wrote such a basic installation and configuration notes. Charles Download address install 1, use the box out of...


C++ multithreading--thread synchronization critical section

... 1, thread synchronization thread synchronization refers to a constraint relationship between threads, the execution of one thread depends on the message of another thread, when it does not Wait for a message from another thread to wake up until the message arrives. 3, thread...


Group programming ladder - L1-003 single digit statistics (15 points)

... L1-003 single digit statistics (15 points) given a k-bit integer N=d k−1 10 k−1 +⋯+d 1 10 1 +d 0 (0≤d i ≤9, i=0,⋯,k−1, d K−1 >0), write a program to count the number of occurrences of each different single digit. For example: Given N=100311, there are 2 0, 3 1, and 1 3. Input format:...


51nod1473 power map

... At first, the meaning of the problem is wrong. The code written by the wrong question can be a lot of drunk. I thought the code was frustrated. Later, I went back and read the question carefully. Understand 了意意, idempotent power, etc., is a^x=a, or problem can be transformed into, at...


Win10 visual studio2017 environment configuration glut and glui

... 1) download GLUT: GLUT download address in Windows environment: glut download address 2) Unzip the downloaded compression package, you will get 5 files: glut .h, glut.lib, glut32.lib, glut.dll, glut32.dl l 。 3) Find the folder where the visual studio stores the local header files. If...


Install win10 + kali dual system

... material preparation 环境Configuration win10 System free disk processing 右桌面" "My computer" ----" "Management" --- ----""Disk Management" Select the free 70G drive letter, right click "compressed volume" For example, if my computer's D drive has 70G of free memory, I will choose to...