Numbers: They have no meaning in themselves and have no quantitative meaning. They only have specific practical meaning in specific situations.

Numeric value: data composed of numerical symbols, with quantitative meaning, and capable of arithmetic operations

Data element: the basic unit of data

Data types: basic data types and structural data types

Data structure: the relationship between data, that is, the organization form of data

Concept: a sequence composed of variables of the same type

One-dimensional array: suitable for representing data sequences with linear characteristics

characteristic

Concept: A data structure that connects data objects that need to be processed in the form of nodes through pointers.

characteristic

Concept: A finite sequence of zero or more characters

characteristic

Concept: A first-in, first-out linear list. The end that allows insertion is called the tail of the queue, and the end that allows deletion is called the head of the queue.

characteristic

Concept: A linear table with restricted operations, allowing insertion or deletion only at one end of the table

characteristic

The concept of tree: It can be described as a finite set composed of n (n>=0) nodes and a node relationship defined on the set.

The concept of a binary tree: it is a finite set with n nodes

Binary tree properties

Complete binary tree and incomplete binary tree

Traverse

The concept of iteration; an activity that repeats a feedback process, usually with the goal of bringing results in line with goal expectations

Bubble Sort

sequential search

binary search