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Intersection of two unidirectional linked lists Problem Description: There are two one-way linked lists. They may or may not intersect. If it intersects, it returns the intersecting node; if it does not intersect, it returns null. There are only three cases when two one-way linked lists intersect. The problem of linked list intersection is ...

catalogue Title: Sword finger offer03: repeated numbers in the array Title: Sword finger offer04: search in two-dimensional array Title: Sword finger offer05: replace spaces Title: Sword finger offer06: print linked list node information from end to end Title: Sword finger offer07: reconstruction of binary tree (pre order + middle order) ...

Let's take a look at the definition given by Du Niang: And look up the set. In some set application problems with N elements, we usually make each element form a single element set at the beginning, and then merge the sets of elements belonging to the same group in a certain order. In the meantime, we should repeatedly find out which set an ...

Input format Output format Meaning translation Initially, there are from left to right n n n wooden blocks numbered 0 ... n − 1 ...

preface I believe many students were asked about HashMap during the interview, especially Java/Android programmers. HashMap is almost bound to be mentioned. Because there are too many points to dig. HashMap about Java can be seen everywhere on the Internet. Naturally, with the popularity of fluent, you may also be asked about the HashMap of fl ...

Title Link: Click to view Title Description: Maintain a collection and support the following operations: I x, insert a number {X;Q x, ask whether the number ＾ x ＾ has appeared in the set; Now you need to perform N # operations and output the corresponding results for each query operation. Input / output format: input The first line c ...

catalogue Familiar with circular linked list Definition of circular chain header node and data node Creation of circular linked list Insertion of circular linked list data node Deletion of circular linked list data node Traversal and printing of circular linked list Complete code Familiar with circular linked list After learning the ...

1, Overview ​​ 1. Inheritance structure of collection As can be seen from the above figure, there are two interfaces list and set under the Collection. List represents the linear table in the data structure, and the implementation method of linear table is divided into linked list and array. Set means set. Each element in a set is indep ...

C++ list usage   general Defined in the header file < list >, std::list is a container that supports constant time to insert and remove elements from any location of the container. Fast random access is not supported. It is usually implemented as a two-way linked list. With STD:: forward_ Compared with list, this container prov ...

Catalogue of series articles I Array type problem solving method 1: dichotomy II Array type problem solving method 2: Double finger needle method III Array type problem solving method 3: sliding window IV Array type problem solving method 4: simulation V The basic operation and classic topics of the linked list Vi Classic title of hash tab ...