Return of missing persons

First hit yourself in the face , I've been a little busy these two days , I stopped learning data structure for two days , It is indeed a very difficult thing to live in Japan ..

Today is a normal return , But there are some problems in the process of learning , I found the layout of this data structure book a little difficult to understand .

At the end of c++ After a review of , First, I talked about the standard of program performance analysis , Including space complexity and time complexity , The spatial complexity includes instruction space 、 Data space and environment stack space ; In time complexity, we talk about the big in asymptotic notation O And big Ω, It means less than or equal to and greater than or equal to respectively . These are normal conditions .

But the examples in this chapter are not very friendly to a novice , In the next chapter, we will start with abstract classes and pure virtual functions , Show me freeze , I have good food ..

I feel I have to watch the video class and go through the concept first , It's really a bit difficult to read . At present, I am watching grandma Chen Yue's class , I hope to stick to it .

Take this card to my place , I will come back ！