Programming VIP

Links to the original text: https://mp.weixin.qq.com/s?__biz=MzAxMjEwMzQ5MA==&mid=2448887662&idx=1&sn=7baef65bdf83cb15a6879155a8cd39fb&chksm=8fb55543b8c2dc55f6d80d66e8e3ea14bbe3e6754e345b354be94ebe054c381cbf390652d909&mpshare=1&scene=1&srcid=#rd ...

There are n students standing in a row, each student has a capability value. Niu Niu wants to select k students from the n students in order. He asks that the difference between the location numbers of the two adjacent students should not exceed d, so that the product of the ability values of the K s ...

Links to the original text: http://www.cnblogs.com/riasky/p/3430865.html Problem Description Javac++ saw an interesting thing while reading computer books one day! Each string of characters can be coded into some numbers to store inform ...

Codeforces 16D Logging Problem Solution subject meaning of the title Code thinking summary subject Topic link meaning of the title Calculate the minimum number of days between logs according to the logs. Only 10 records can be generated in one minute. Code #include <bits/stdc++.h> u ...

No matter what kind of C/S technology, it is very cumbersome to involve data visualization. Of course, there must be some gods. They are only for most people or through web pages. Sometimes they don't want to separate the two functions. It's usually the customer's reason. So we plan to embed Web Browser in WPF and then use E-Browser. Charts com ...

Topic link: https://cn.vjudge.net/contest/314508#problem/ATranslator: ____________. The countryside is composed of R (1 < R < 100000) two-way roads. Each road connects two of N (1 < N < 5000) intersections, which is convenient for numbering 1. N. Bessie started at intersection 1, and her fri ...

To tell you the truth, I really don't want to write. I did badly in the exam. 35 points, rank34/55 But reflection, problem-solving are still to be written. When I saw the "template" of T2 in the exam, it was absolutely not so simple. I jumped directly. It took two hours to make T1 first, and more than one hour to make T3. So T2 lost ...

Previous remarks HZ people seem to have learnt Splay, and the lecturers often say Splay, so do the gods of our school. Every time they say Splay, I say that I won't be too embarrassed. After learning Splay, I really feel that it is a very beautiful data structure. Summary Pre-cheese: Binary Search Tree A binary sorting tree is either an empty t ...

MongoDB Learning Notes (3) - Mongo Shell Common Query Command The version of MongoDB used in this article is 4.0.10 > db.version(); 4.0.10 1. find command for brief query Find (query condition, field returned) 1. Return all fields when querying Db. user. find () - > Query all data in the user collection > db.user.find() { "_id" : Obj ...

In the last section, we introduced the use of Beautiful Soup, which is a very powerful web parsing library. Do you think some of its methods are not suitable for use? Do you think its CSS selector function is not so powerful? If you have something to do with the Web, if you prefer to use CSS selectors, ...