Programmer Think

Redis's extreme encapsulation of the underlying data structure is one of the reasons for redis's efficient operation. We analyze it in combination with redis source code.1, Data type encapsulation of ValueObject structure in Redis: redisObject structuretypedef struct redisObject { unsigned type:4; // Type of object, string / list ...

1, Maximum depth of binary tree Maximum depth of binary tree The maximum depth of binary tree can be achieved by recursion, level traversal and depth first traversal, but the simplest and easiest is recursion. 1. Recursive method 1) Determine the three elements of recursion Return value and parameters of recursive function: the return ...

catalogue IndexTree AC automata IndexTree Tree array or Binary Indexed Tree (English: Binary Indexed Tree), also named Fenwick tree after its inventor. Its original intention is to solve the calculation problem of Cumulative Frequency in data compression. Now it is mostly used to efficiently calculate the prefix sum, interval sum of ...

python Programming (I) -- python style Solitaire Python programming style is also called python. This series of articles records learning bits and pieces. preface This article is realized through A simple example__ getitem__ And__ len__ Method, the example is to realize 52 playing cards without size kings, including four decors and ...

Find the median of two positively ordered arrays Method 1: binary search Given two ordered arrays, it is required to find the median of two ordered arrays. The most intuitive ideas are as follows: Using the merging method, merge two ordered arrays to get a large ordered array. The element in the middle of a large ordered array is the median. ...

Current account savings management system of data structure linked list (C + +) Current savings account management system 1 question content and purpose requirements (1) Structural background Linked list is a data structure of linked storage. It uses a group of storage units with arbitrary address to store the data elements in the linear lis ...

HashMap bottom hyperdetailed interpretation First, substitute a question: how does the underlying HashMap find the corresponding stored array node through the Key? Look at the figure first to know what the underlying storage structure of HashMap is like In the first case, the length of the linked list at the node position of the same array i ...

Detailed explanation and summary of the real topic of the final of the Java group B provincial competition of the Blue Bridge Cup [Topic download, 2013 (4th) ~ 2020 (11th)] CSDN Blue Bridge Cup column Detailed explanation and summary of the real topic of the 04th Blue Bridge Cup Java group B provincial competition in 2013Detailed explanatio ...

Take you hand in hand to disassemble the LRU algorithm summary LRU algorithm is a cache elimination strategy. The principle is not difficult, but it is more skilled to write bug free algorithms in the interview. It needs to abstract and disassemble the data structure layer by layer. labuladong in this paper will write you beautiful code. ...

According to Wikipedia: Insertion sort iterates, consuming one input element each repetition, and growing a sorted output list. Each iteration, insertion sort removes one element from the input data, finds the location it belongs within the sorted list, and inserts it there. It repeats until no input elements remain. Heap sort divides its inp ...