Why write a WeChat public account? During the process of learning C language, I found that most resources online are just selling courses. Some platforms automatically convert you to VIP articles to sell their memberships, and on Douyin, there are videos with the suffix HTML claiming to be Python projects, with comments just dragging on … Read more
Youth Software Programming (C Language) Level Exam Paper (Level 1) Score:100 Number of Questions:5 1. Programming Questions(Total5 questions, each worth20 points, totaling100 points) 1.Input and Output of Numbers Input and Output of Numbers Input an integer and a double-precision floating-point number, first output the floating-point number rounded to2 decimal places, then output the integer. Time … Read more
Selection Sort Algorithm PrincipleThe selection sort algorithm in C language is one of its basic algorithms. The principle of sorting is to traverse through nested loops, marking the index position of the current element and the minimum or maximum (satisfying specific conditions) element in the subsequent elements, and swapping the values at the index positions.This … Read more
📌 Problem Description Please enter an integer x and determine whether it is a palindrome (i.e., it reads the same forwards and backwards). Requirements： Do not use string conversion Handle negative numbers (e.g., -121 is not a palindrome) Advanced: Avoid reversing the entire number to optimize time complexity Example: Input: 121 → Output: is a … Read more
Click 👆👆👆 the blue text Follow “Passion Embedded” <span>#pragma</span> is a preprocessor directive in C/C++ used to pass specific compilation instructions or commands to the compiler. Due to the syntax and functionality of <span>#pragma</span> being highly dependent on the compiler implementation, its behavior may vary significantly across different compilers. 1. Basic Concepts and Syntax Purpose: … Read more
Task: Draw a sine wave, a logarithmic spiral, and an arithmetic spiral.First, draw the mathematical two-dimensional coordinate axes and mark the scales accordingly on the axes.Then, draw a sine wave in red, a logarithmic spiral in green, and an arithmetic spiral in blue.EffectSource Code #define _CRT_SECURE_NO_WARNINGS#include <graphics.h>#include <math.h>#include <stdio.h>#include <conio.h>#define PI 3.1415926535 int main() { … Read more
The account login system is essential in many system designs. Today, this login system has comprehensive features, including registration, login, password recovery, password modification, and password masking with * during input. It also has a complete login selection interface. Without further ado, let's get to the code! Directory: 1. Header Files & Structs & Basic … Read more
Code Style in C Language: The Importance of Uniformity In programming, the readability and maintainability of code are extremely important. Especially in a relatively low-level programming language like C, a good code style not only improves team collaboration efficiency but also reduces the likelihood of errors. This article will detail the code style in C … Read more
In C language, input and output are the basic ways for programs to interact with users.<span>scanf</span> and <span>printf</span> are the two most commonly used standard library functions for handling input and output. This article will provide a detailed introduction to the usage, format, and some considerations of these two functions. 1. printf Function 1.1 Function … Read more
Application of C Language in the Financial Sector: Risk Calculation and Modeling In the modern financial sector, risk management is a crucial aspect. By assessing the risks associated with various financial instruments and portfolios, institutions can make more informed decisions. The C language, as an efficient and flexible programming language, excels in implementing complex financial … Read more