Programmer Group

 It's not easy to create. The guests come to pay attention to it, collect it and subscribe to it three times at a time❤😜       Preface Program = data structure + algorithm, algorithm is a mixture of mathematical theory and engineering implementation, is a very interesting and amazing knowledge.Understand ...

Concept and structure of reactor If there is a key set K= Store all its elements in a one-dimensional array in the order of a complete binary tree, and meet the following requirements: 2... Is called a small pile (or a large pile). The heap with the largest root node is called the maximum heap or large root heap, and the heap with the sm ...

LinkedHashMap source code analysis summary This class inherits HashMap, so it has all the features of HashMap. It maintains data in the form of two-way linked list, so as to maintain the order of internal data, that is, the order of insertion is the order of iteration. When the accessOrder access mode is set, when accessing the elements in th ...

1. Storage of data structures There are only two ways to store data structures: array (sequential storage) and chain table (chain storage). What do you mean by this sentence? Aren't there any data structures like hashes, stacks, queues, heaps, trees, graphs, etc? When we analyze problems, we must have recursive thinking, from top to bottom, ...

1. Characteristics of stored data: unordered and unrepeatable elements concrete: Take HashSet as an example: 1. Disorder: not equal to randomness. The stored data is not added in the order of array index in the underlying array, but according to the order of data**Hash value**Decided. 2. Non repeatability: ensure that the added elements f ...