Programmer Think

aircv It is a small open source project released by Netease. It should also be the most cited project for simple image matching. The last article did how to use find of aircv_ Template description, however, it is not a mature project. There are many small pits in it, which need to be improved. Today, let's do a code logic analysis.Core function ...

catalogue Huffman coding Principle analysis Basic introduction Best practices - data compression (create Huffman tree) code implementation Operation effect Generate Huffman coding table Partial code Complete code Operation effect Huffman coding Transmitted string 1)I like like like java do you like a java 2)d:1 y:1 u:1 j:2 v:2 o: ...

2021SC@SDUSC Next, the competition champion model of paddedetection is analyzed CascadeCA RCNN is the best single model of Baidu visual technology department in Google AI open images 2019 object detction competition. The single model helped the team win the second place among the teams with more than 500 parameters. Open Images Dataset V5(OID ...

reference resources Boss blog 1. Understanding of recursion Recursion is to call our own process. We don't have to worry about what each level does. We just need to pay attention to the implementation of a certain level, because each level is the same!!! Recursion can be seen as a simplified version of a loop, and the essence of recursion ca ...

Symmetric array problem Generally, the array problem with symmetry can be solved by forward traversal and reverse traversal, such as 162 peak elements and 135 distribution elements Distribute candy Use arrays Fill initializes all arrays to 1. During forward traversal, traverse the position from 1 to (n-1), and during reverse traversal, tra ...

introduce characteristic 1) The first node does not contain data as the chain header (always unchanged), and there is data from the second node 2) Do not use tail pointer, involving tail, circular search; The purpose is different from what I wrote before. It's more interesting! 3) The operation principle and operation logic are basically ...

First non repeating character in JZ54 character stream (medium) subject describe Please implement a function to find the first character that appears only once in the character stream. For example, when only the first two characters "go" are read out from the character stream, the first character that appears only once is " ...

📢 preface 🚀 Algorithm problem 🚀 🌲 Punching out an algorithm problem every day is not only a learning process, but also a sharing process 😜🌲 Tip: the problem-solving programming languages in this column are C# and Java🌲 To maintain a state of learning every day, let's work together to become the great God of algorithm ...

Longest prefix Give a string ABA Prefix set: {a, ab, aba, abab} Suffix set: {a, ba, aba, baba} The equal pre suffix is the set element marked with the same color above. The longest pre suffix is the longest of all equal pre suffixes, that is, the aba above. Take pictures for example: The prefix such as longest phase is the basis of K ...

2021.08. 09 [popularization group] simulation group C competition summary Write before: Today's exam is average. I didn't do very well. Continue to work hard next time! 😢😢😢 The mistake of this competition is that I didn't seriously read the meaning of the topic. Next time, I will continue to work hard! ok, let's start summarizing! ...