Programmer Group

Double column set: key: value public class MapDDDDemo { public static void main(String[] args) { Map map = new HashMap<Integer,String>(); map.put(1,"Hello"); map.put(2,"world"); map.put(3,"hello"); System.out.println("map Length:"+map.size()); System.out.println("map Include key ...

brief introduction From: Easy to understand and explain linked list One way linked list: Bidirectional linked list: Look at the picture and understand... Bidirectional linked list data structure From: Data structure - bidirectional linked list (Python Implementation) Data structure has always been a very important part in the programm ...

Learn the basic knowledge of linked list on LeetCode and summarize as follows: 1. Introduction to single linked list         Unlike an array, a single linked list only stores the value of the element. In addition to the value of the data, a single linked list also includes a reference field pointing to the next node, which ...

Pseudo code of linked list 1. A recursive algorithm is designed to delete all the nodes with the value of x in the single linked list L without the leading node Writing thought; 1)Establish recursive function and judge each round L->data Is it x，If yes, delete the node, and then L = L->next，Until the end of the linked list is travers ...

Linear table Linear table: a linear table is a finite sequence of n data elements with the same characteristics. Related concepts: Precursor element, successor elementHead node and tail node Linear list classification: sequential list and linked list 1. Sequence table Sequence table: sequence table is a linear table saved in the form of a ...

The last issue discussed it as a whole Unidirectional linked list . On this basis, two points are added, one-way circular linked list and two-way circular linked list. It can be seen from the literal that the linked list forms a ring structure. The difference is whether the ring can only cycle in one direction or two directions. One way circu ...

In this article, we go deep into the interior of LinkedHashMap, an implementation class of Java Map interface. It is a subclass of HashMap and inherits the core code of the parent class. Therefore, readers should first understand the working principle of HashMap. LinkedHashMap and HashMap *LinkedHashMap * is similar to hashMap in most aspec ...

Variable array and linked list 1, Variable array 1. Realization    define a data structure array, which contains an integer pointer array and a size used to indicate the length of the current array. a. Header file def.h #ifndef _ARRAY_H_ #define _ARRAY_H_ #define BLOCK_SIZE 10 typedef struct{ int *array; int size ...

Note: Title: Design the implementation of linked list. You can choose to use single linked list or double linked list. A node in a single linked list should have two attributes: val and next. val is the value of the current node, and next is the pointer / reference to the next node. If you want to use a two-way linked list, you also need an at ...

5. Linear table Linear table is the most basic, simplest and most commonly used data structure. A linear table is a finite sequence of n data elements with the same characteristics Precursor element: if element A is in front of element B, A is called the precursor element of B Successor element: if element B is after element a, it is calle ...