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collections library is a part of the standard library. There are many data structures in it. Many modifications and improvements have been made on the basis of lists, dictionaries and tuples.Let's talk about the most useful ones today.1,dequeIt implements a queue that can be operated at both ends, which is equivalent to a double ended queue. It ...

** 1. What is a lookup table ** In daily life, we have to do some searching work almost every day, looking up someone's phone number in the phone book; Find a specific file in the folder of the computer, and so on. This section mainly introduces the data structure used for lookup operation - lookup table. A lookup table is a collection of da ...

Establish binary tree stored in binary linked list + traverse binary tree (first order, middle order, second order and sequence) 1. Establish a binary tree stored in a binary linked list 1-1. principle The construction of binary tree uses the principle of recursion. When building a binary tree according to the pre order sequence, in order to ...

Zero. Preface This chapter mainly explains the container stack, queue and priority in C + +_ Queue (priority queue, equivalent to heap in data structure), which is simulated after being familiar with the use 1, Introduction and use of stack 1. Introduction to stack stack is a container adapter, which is specially used in the ...

3, Two dimensional array 1. Overview of 2D arrays Our big data class of digital plus technology has many students in each class, so it can be stored in an array, and we have many big data classes at the same time. This should also be stored in an array. How to represent such data? Java provides a two-dimensional array for us to use. This show ...

Queue is a first in first out ordered list, which can be realized by array or linked list (for example, Bank Queuing System) prerequisite: maxSize: queue capacity (length of array) arr: array of simulated queues front: points to the previous element of the queue header element, with an initial value of - 1 rear: refers to the element at th ...

Pre question Q1 structure is required to implement single linked list in C language. How to implement it in python? Q2 what is the difference between process oriented and object-oriented implementation of a single linked list? Learning content 1. Define single linked list 2. Implementation of single linked list 3. Method of single linked l ...

1, First of all, we should understand the concept of stack. In c + +, STL exists, which can facilitate us to do many things, and stack is a part of it. In short, stack is a kind of first in and last out data organization By thinking and simulating the structure of stack, we find that we can use one-dimensional array and a variable tt to re ...

Today, let's learn about the application of stack and stack, and learn the application of stack in recursive algorithm and four arithmetic expressions 1, Definition of stack Everyone should have encountered an exception called "stack overflow" when writing a program. What are the similarities and differences between this stack and t ...

Gobang AI algorithm preface: Coordinates Xi'an, written during the closure of the city. Improved the previously written AI Gobang game based on Minimax strategy, which is implemented in java, using java's old jframe form and drawing class. After writing, it was sorted into this blog. The game adopts the second-dimensional style of chunwu, wit ...