1. Core Features of Enum Types 1.1 Basic Definition and Underlying Principles The enum type is defined using the <span>enum</span> keyword to create a set of named integer constants, essentially assigning semantic names to integer values. The standard syntax is: enum EnumName {Element1, Element2, …}; Each enum element automatically increments from 0 by default, for … Read more
📌 Problem Description Write a program to input an integer array, remove duplicate elements in place, and return the new array content. Requirements: Space complexity O(1), meaning no extra array memory allocation Maintain the order of elements Example: Input: 3 2 2 4 3 → Output: 3,2,4 Input: 5 5 5 → Output: 5 Difficulty:⭐️⭐️ … Read more
C Language Review Materials for Final Exam Practice Questions and Answers Mind MapCopy the link to open and save in the browser: https://pan.xunlei.com/s/VOF4bIaPe4XAqG0QOjWDdY1qA1?pwd=ajyh# 20. Data Input 1) scanf(“a=%d,b=%d”,&a,&b) is a super important exam point! It is essential to remember that data must be entered in the terminal in the format of the first part. The … Read more
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[C Language Level 2 Exam Preparation Strategy | 30-Day Efficient Sprint Guide] 1. Clarify Key Exam PointsThe Level 2 C Language exam includes multiple-choice questions (40 points) and practical questions (60 points). Key areas to master include: data types, loop structures, arrays, functions, pointers, structures, and file operations. 2. Phased Preparation Plan Foundation Stage (10 … Read more
Main content: while statement, do statement, for statement, exit loop, empty statement, etc. A loop is a statement that repeatedly executes other statements (the loop body). In C language, each loop has a controlling expression. Each time the loop body is executed (the loop repeats once), the controlling expression is evaluated. If the expression is … Read more
“From today on, study hard and make progress every day” Repetition is the best method for memory; spend one minute every day to remember the basics of C language. 💻 From Beginner to Abandonment: Why 80% of People Can’t Learn C Language? Now I Understand, No Wonder I Can’t Learn It Either~ “C language is … Read more
1. Essential Differences: Low-Level Control vs High-Level Abstraction 1.1 Assembly Language: Direct Mapping to Hardware Assembly language is a mnemonic representation of machine instructions, closely coupled with the MCU architecture. Taking the assembly of ARM Cortex-M as an example: ; Add registers R1 and R2, store the result in R0 ADD R0, R1, R2 ; … Read more
Three Essential Elements of a Function Functionality, Parameters, Return Value. 1. Function Exercises 1. Define four functions to implement the operations of two integers: +, -, *, / my_add my_sub my_mul my_div After writing, test the functionality yourself. #include <stdio.h> int my_add(int x, int y); int my_sub(int x, int y); int my_mul(int x, int y); … Read more
📌 Problem Description Write a number guessing game with the following rules:: The program randomly generates an integer between 1~100. The user has a maximum of 10 attempts, with hints provided as “too high” or “too low” after each guess. Upon guessing correctly, a congratulatory message is displayed; if unsuccessful, the correct answer is revealed. … Read more
Code Refactoring Techniques in C Language Development In software development, code refactoring refers to the process of improving and optimizing existing code without changing its external behavior. Proper refactoring can enhance the readability, maintainability, and performance of the code. This article will introduce some basic code refactoring techniques in C language development and demonstrate how … Read more