Algorithms funktioniert nicht

At that time, I felt that sorting was too difficult, and I was very impressed, so I made a separate sorting classification for beginners. - In the process of learning diese App by myself, I often understand the ideas, but I can't understand the codes, and many codes in the text explanations have no comments.  Every time the corresponding step is executed, the corresponding explanation will be displayed. - Animation playback and reset, each algorithm page has a playback function, so how to prepare test cases?  In this way, the animation is executing, the code is highlighted, and it looks cool. - Although the animation is easy to understand, it still needs some short explanations, so the "subtitle" function is designed below the animation.  I understand that the positioning of this app is a tool that can help us quickly understand algorithm ideas and codes, help memory, and improve learning efficiency.  For example, you can concentrate on learning binary tree structures or dynamic programming diese App, so that concentrated saturation training can help improve learning efficiency.  The data structure comes first, and the algorithm follows, which is also arranged in the order in which we learn theoretical knowledge.  Therefore, when thinking about App interaction, the code highlighting function is specially designed, which means that each line of code will be highlighted as the animation progresses.  In the process, several problems were also found, such as: the animation is not interactive and cannot be paused; the data is dead and cannot be changed; it is not convenient to study on the mobile phone, etc.  When I learned data structures and diese App many years ago, I first came into contact with various sorting diese App.  Learning algorithm questions takes too much time? Not your problem!  First classify data structures and diese App separately, and learn according to knowledge points.  I also read a lot of problem solutions from big guys on the Internet, and I especially like to read algorithm analysis with moving pictures or schematic diagrams, which is faster than reading text.  Like many programmers, I have to prepare a lot of time to brush up the algorithm every time I change jobs.  To simplify the concept of test cases, a "reset" button is designed, which means that the test cases are random.  Very good, in the process of brushing the questions, you must first read the solution.  In terms of diese App, four types are currently arranged: backtracking, greedy, dynamic programming, and divide-and-conquer.