What are the values ​​of position?

Position values ​​include arrays, linked lists, stacks, queues, trees and graphs. Detailed introduction: 1. Array, the position of the array starts from 0, and increases in sequence until the length of the array decreases by 1; 2. Linked list, the position of the linked list starts from 1, and increases in order until the end of the linked list; 3. Stack, the position of the stack Starting from 1 and increasing in order until the top of the stack; 4. Queue, the position of the queue starts from 1 and increasing in order until the end of the queue; 5. Tree and so on.

The operating system for this tutorial: Windows 10 system, DELL G3 computer.

In computer programming, position (position) is a common concept used to represent the position or index of an element in a data structure. Different data structures have different implementation methods and usage scenarios, so the specific meaning and value of position will also be different. The following will introduce the values ​​of position in several common data structures.

1. Array: In an array, position represents the index value of the element in the array. An array is a linear data structure in which elements are stored contiguously in memory. Therefore, the elements in the array can be accessed directly through the index value. The position of the array starts from 0 and increases until the length of the array is reduced by 1.

2. Linked list List): In a linked list, position represents the position of the element in the linked list. A linked list is a non-contiguous data structure in which each element contains a pointer to the next element. The position of the linked list starts from 1 and increases sequentially until the end of the linked list.

3. Stack: In the stack, position represents the position of the element in the stack. The stack is a last-in-first-out (LIFO) data structure that only allows insertion and deletion operations at one end of the stack. The position of the stack starts at 1 and increases until it reaches the top of the stack.

4. Queue: In the queue, position represents the position of the element in the queue. A queue is a first-in-first-out (FIFO) data structure that allows insertion operations at one end of the queue and deletion operations at the other end. The position of the queue starts from 1 and increases sequentially until the end of the queue.

5. Tree: In a tree, position represents the position of a node in the tree. A tree is a non-linear data structure consisting of nodes and edges. Each node can have multiple child nodes, but only one parent node (except the root node). The position of the tree can be determined based on the hierarchical relationship of the nodes. The position of the root node is 1, and the positions of its child nodes increase in sequence.

6. Graph: In a graph, position represents the position of a vertex in the graph. A graph is a data structure composed of vertices and edges, and vertices can be connected by multiple edges. The position of the graph can be determined based on the identifier of the vertex, or based on the position of the vertex in the storage structure of the graph.

In summary, the value of position has different meanings and value ranges in different data structures. It can represent the position or index of an element in data structures such as arrays, linked lists, stacks, queues, trees, and graphs. Understanding the meaning and value of position can help us better understand and use different data structures .

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