1. Run the following program, the output result is ( ). A.X0 B.X5 C.5 D.0 Knowledge points assessed: functions, local variables, and global variables. 2. Run the following program, the output result is ( ). A.3 B.4 C.9 D.16Knowledge points assessed: simulation.i=1, satisfies the while statement, runs t=1, i=3;i=3, satisfies the while statement, runs t=2, … Read more
In today’s digital age, programming skills have become one of the essential skills for young people. GESP (CCF Programming Ability Level Certification) serves as an authoritative certification for programming ability, providing a platform for young people to assess their programming skills. It is divided into levels 1 to 8, covering programming knowledge and skills from … Read more
01 Answer: D Explanation: Brief 02 Answer: B Explanation: Brief 03 Answer: None Explanation: The correct format should be scanf(“a=%db=%d string=%s”,&a,&b,string); 04 Answer: D Explanation: The else statement always pairs with the nearest unmatched if statement. 05 Answer: C Explanation: Brief 06 Answer: D Explanation: Brief 07 Answer: B Explanation: In C language, when an … Read more
Course Address:https://www.cc4e.com/ This lesson, From Python to C, mainly teaches how to quickly switch from Python to C language. C is the mother of high-level programming languages, and Python itself is written in C. Many programming languages borrow syntax from C. The instructor does not want this to be your first language course; rather, they … Read more
In embedded development, as projects progress, issues such as reinventing the wheel, code dispersion, and maintenance difficulties are common. How to systematically build your own general-purpose function library (“library of wheels”) that can be efficiently reused and continuously evolved is a challenge every developer faces. Benefits of Building a Function Library • Reduce Redundant Work: … Read more
Today, embedded systems are increasingly applied in various fields such as smart homes, smart healthcare, industrial automation, and intelligent transportation. In the development of embedded systems, data structures are an essential knowledge point. This article will introduce several common data structures in embedded programming, including arrays, stacks, queues, heaps, hash tables, and linked lists. 1. … Read more
In computer science, a graph is an important data structure used to represent relationships between objects. A graph consists of vertices (or nodes) and edges. Depending on different requirements, we can use various methods to store graph data. In this article, we will detail two common graph storage methods: the adjacency matrix and the adjacency … Read more
Hello everyone! Today I bring you the twenty-second learning note, to discuss a common pitfall in Python—shallow and deep copy. This is a concept that many beginners easily confuse, and understanding them can help avoid many strange bugs~ 1. Let’s look at a practical scenario Suppose we have a list of students: students = ["Xiao … Read more
Whether you are a beginner in Python programming or an experienced developer looking to quickly review syntax, today we will organize common Python syntax, covering basic syntax, data structures, control flow, functions, and classes. Python has a large number of third-party dependency packages and a very active community. 1. Basic Rules and Environment Setup(1) Indentation … Read more
When comparing the advantages and disadvantages of linked lists against arrays, we can mention a few points. However, in cases of random storage, we would choose linked lists for processing. When using a doubly linked list, we often define it in the following manner: struct list_node { TYPE data; struct list_node *prev,*next;}; The corresponding linked … Read more