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Data structure and algorithm (C/C + + implementation) Chapter 1 C + + review 1.1 C + + preliminary 1. C + + namespace For example, Xiao Li and Xiao Han both participated in the development of a file management system. They both defined a global variable fp to indicate the previously opened files. When compiling their code together, it is ob ...

introduction In web development, function is the cornerstone. In addition to function, peacekeeping and protection are the top priority. Because during the operation of the website, the business may be abnormal due to the sudden traffic, and may also be maliciously attacked by othersTherefore, our interface needs to limit the traffic. Commonly ...

Brushing date: 7:49 am Sunday, May 30, 2021 Personal question brushing records and code collection are all from leetcode After much discussion and consultation, we now intend to work in the direction of Java The main answer language is Java Title: Sword finger Offer 68 - I. nearest common ancestor of binary search tree Simple d ...

Method 1: recursion, starting from the root node, regards each node under the root node as the root node (the idea of recursion), and then according to the characteristics of preorder traversal, the first value of the traversal result is the value of the root node. Therefore, the recursive assignment process can be determined, and then the pos ...

1. What is recursion A function call itself is recursive. Recursion usually transforms a large and complex problem into subproblems layer by layer until the subproblem can be solved without further recursion. Recursion greatly reduces the amount of code. Generally speaking, a recursive algorithm consists of the following parts: A termination ...

Introduction In the bronze medal area, but there is still a certain distance from the silver medal. There is not much time left. We need to focus more and consolidate more Knowledge points involved Thinking, search, large number operation subject F Define a triangle whose side lengths are integers t ...

1. Description 1. If the string does not contain any'aaa','bbb'or'ccc' as a substring, then the string is a'happy string'. 2. Give you three integers a, b, c. Please return any string s that meets all of the following conditions: s is a happy string as long as possible. There are at most a letter'a', B letter'b', c letter'c'in s. s contains on ...

Question A: Gifts Time Limit: 1.000 Sec Memory Limit: 512 MBSubmit state Title Description In an n × N on the grid, m gifts are placed, each with a value vi(1 < i < m), you can choose a gift, and then choose: (1) Take away all gifts listed with it, or (2) Take away all gifts that go with it What is the maximum value of the gift y ...

Preface Here's a little cold blog _Column on High Quality Technology and Good Writing Personal Public Number, share some technical articles, and pits encountered Current Series: Data Structure Series Source code git repository' Data structure code address Code Git repository address Hashtable A basic introduction to hash tables A H ...

High Precision Addition, Subtraction, Multiplication and Division Algorithms What is high precision? High Accuracy Algorithm s are mathematical computational methods for processing large numbers. In general scientific calculations, hundreds or more decimal places are often counted, of course, hundreds of billions of large numbers. Generall ...