Programming VIP

1. What is a chain stack? Since the allocation of each element in the stack in memory is not continuous, the connection between elements is realized through a pointer in each element node. As shown below: It can be seen that the head of the linked list is used as the top of the stack. 2. Comparison between sequential stack and chain stac ...

1. Title requirements Using the algorithm described below, you can scramble the string s to get the string t: If the length of the string is 1, the algorithm stops. If the length of the string is > 1, perform the following steps: Split a string into two non-empty substrings at a random subscript. That is, if the string s is ...

The data structure algorithm implemented in C language is explained one by one below: (Swap function is a transposition function at the end, which can be understood) 1. Insert sorting As the name suggests, a value is inserted one by one from the front. When inserting, it is sorted once. If there are n numbers, it is sorted n times Th ...

Analysis of the underlying mechanism and source code of HashMap 1. Schematic diagram: 1. < K, V > is to use HashMap$Node to realize map Entry<K,V>. 2. The bottom layer of HashMap is JDK7 0 is implemented in [array + list]. jdk8. After 0, it will be realized by [array + list + red black tree]. When the list reaches a certain leng ...

All the code in this article comes from jdk1 eight Introduction to ArrayList public class ArrayList<E> extends AbstractList<E>         implements List<E>, RandomAccess, Cloneable, java.io.Serializable ArrayList inherits AbstractList and implements list, randomaccess, Cloneable, Java io. Serializable interface java.lang.Ob ...

catalog: I Concept & principle Previously, we understood the binary search tree, but we found that if the data is orderly or close to orderly, the binary search tree will degenerate into a single tree AVL tree is a balanced binary tree. It just adds a balance factor to the binary search tree to form the current balanced bi ...

1. Repeat Count subject In a limited sequence of positive integers, some numbers repeat several times. Please count the number of occurrences of each number, and then output the number and its number in the order where the number first appears in the sequence. Output format: A number of rows, two separated by a space in each row. The firs ...

catalogue Concept of graph Storage mode of graph adjacency matrix Title: adjacency matrix representation of Graphs Adjacency table Title: the forward star of a graph represents 1 ergodic Depth first search Breadth first search Shortest path algorithm Dijkstra algorithm Title: Party Bellman Ford algorithm SPFA algorithm Title: ma ...

Linear table 1. The linear table with known length n adopts sequential storage structure. Write an algorithm to delete all elements with the value of x in the linear table. Method 1: record the number of elements equal to X in the sequence table l with k, count k while scanning L, move the elements not equal to x forward k positions, and fina ...

catalogue 1, Definition of array 1. Definition of one-dimensional array 2. Definition of two-dimensional array 2, Storage structure of array 1. Array storage mode 2. Storage mode of two-dimensional array (1) Priority storage by row (2) priority storage mode by column 3, Matrix 1. Definition of matrix 2. Definition of special matrix ...