C/C++

C++ Implementation of Nested Excel Functions: An Introduction to Recursive Thinking

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C++ Implementation of Nested Excel Functions: An Introduction to Recursive Thinking

Hello everyone! Today, I will guide you through implementing the powerful nested function feature in Excel using C++. 1. Basic Principles of Nested Excel Functions Nested Excel functions have three characteristics: Hierarchical Calls: The parameter of one function can be another function Recursive Calculation: Calculation starts from the innermost function and gradually moves outward Type … Read more

C++ Programming: Building an Excel-Style Cell Reference System from Scratch

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C++ Programming: Building an Excel-Style Cell Reference System from Scratch

Hello everyone! Today, I will guide you through implementing one of the most important features in Excel using C++—the cell reference system. 1. Basic Characteristics of Excel Cell References Excel cell references mainly have three characteristics: Coordinate Representation: Row and column identifiers like A1, B2 Relative/Absolute References: Mixed references like 1 or A$1 Range References: … Read more

Is C++ Audio and Video Development an Opportunity or a Challenge in 2025?

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Is C++ Audio and Video Development an Opportunity or a Challenge in 2025?

With the full arrival of the 5G era, audio and video have become an indispensable part of our daily lives and work. From the popularity of short video platforms to the rise of online education, and the widespread application in remote meetings, live streaming, filming, and editing, the application scenarios for audio and video are … Read more

How to Improve Your C++ Program Design Using Universal, Lvalue, and Rvalue References?

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How to Improve Your C++ Program Design Using Universal, Lvalue, and Rvalue References?

Today, let’s talk about the love-hate relationship with the reference family in C++—lvalue references, rvalue references, and universal references. These concepts are fundamental to modern C++, frequently tested in interviews, and are key to understanding move semantics and perfect forwarding. It is recommended to prepare a notebook as we write code and break down these … Read more

C++ Implementation of Excel Date Functions: Basics of Time Handling

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C++ Implementation of Excel Date Functions: Basics of Time Handling

Hello everyone! Today, I will guide you through implementing commonly used date handling functions in C++. 1. Basic Knowledge of Excel Date Functions The commonly used date functions in Excel can be categorized into three types: Extraction Functions: YEAR, MONTH, DAY, etc. Calculation Functions: DATEDIF, EDATE, etc. Conversion Functions: DATEVALUE, TEXT, etc. To implement these … Read more

C++ Competition Daily Problem – Day 704

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C++ Competition Daily Problem - Day 704

Today is the 704th day of learning programming with the cool rain! Hello, everyone! This is the problem from the GESP Level 3 Examination. Day 704 GESP Level 3 Examination in March 2025 Problem 2: Word Frequency Count Problem Description In text processing, counting the frequency of words is a common task. Now, given n … Read more

Lesson 1: Introduction to C++ Competitive Programming

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Lesson 1: Introduction to C++ Competitive Programming

Course Introduction Welcome to the world of algorithm competitions! This course will guide you through the basics of C++ syntax, laying a solid foundation for subsequent algorithm problem-solving. Basic Structure of a C++ Program Example of a standard program framework: #include <iostream> // Input-output stream header file using namespace std; // Namespace declaration int main() … Read more

Advanced C++ Tutorial: Implementing Excel’s Grouping and Summarization Functionality

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Advanced C++ Tutorial: Implementing Excel's Grouping and Summarization Functionality

Hello everyone! Today, I will guide you through implementing the powerful grouping and summarization functionality in Excel using C++. 1. Core Idea of Grouping and Summarization Functionality The grouping and summarization in Excel mainly accomplishes three tasks: Grouping: Grouping data based on the values of specified columns Summarization: Performing statistical calculations (sum, average, etc.) for … Read more

C++ Programming Example: Implementing Data Validation Dropdown Menus in Excel

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C++ Programming Example: Implementing Data Validation Dropdown Menus in Excel

Hello everyone! Today, I will guide you through implementing a very useful data validation dropdown menu feature in Excel using C++. Just like in Excel, where you can set cells to only allow selection from predefined values, we can achieve this interactive method in our own programs. This example not only enhances user experience but … Read more

Pre-Exam Responsibility Letter for C++ Programming Level GESP

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Pre-Exam Responsibility Letter for C++ Programming Level GESP

For competition inquiries, please scan the QR code to join the group For an introduction by Teacher Shen, please see:Nanjing Normal University Master Teacher, Xin’ao Coach enters the classroom, students achieve brilliance in competitions1. Do not treat programming as a means to advance in education; otherwise, it will not lead far, and the child will … Read more