Detailed Explanation of Core Points for C++ GESP Level 3 In the GESP Level 3 exam, C++ is the core language assessed, and mastering the key points is crucial for success. Today, we will systematically outline the important and frequently tested knowledge points in the GESP Level 3 exam, combined with real questions and practice … Read more
Problem Description In the era of interstellar exploration, humanity has launched the “Solar Walk” program! Astronauts, equipped with high-tech walking gear, take a stable step of 1 meter every second. The distance from Earth to the Sun is a constant 1.5×10^11 meters, and the length of each step is set by the equipment parameters as … Read more
Click the blue text to follow the author 1. Overview of C++ STL Set Algorithms The C++ Standard Template Library (STL) provides a rich set of algorithms that operate on sorted ranges. These algorithms are located in the <span><algorithm></span> header file. They can perform set operations such as union, intersection, difference, and symmetric difference. Using … Read more
Core Value of Priority Queue The <span>priority_queue</span> container adapter in the C++ Standard Library provides an efficient way to maintain a priority data structure. This article will delve into its core features and demonstrate its applications in system design and algorithm optimization through practical examples. Basic Usage Analysis #include <iostream> #include <queue> int main() { … Read more
Children often encounter various issues during C++ programming, which can be related to syntax, logic, and understanding. Below, I will detail some common problems and their corresponding solutions: 1. Syntax Errors Missing Semicolon Problem: In C++, every statement should end with a semicolon (;). Missing a semicolon will lead to a compilation error. Solution: Check … Read more
Keccak-tiny: A Lightweight C++ Library Keccak-tiny is a C++ library based on the Keccak algorithm, known for its simplicity and efficiency. The Keccak algorithm is a powerful hashing algorithm widely used in the field of cryptography. Keccak-tiny provides an easy-to-use interface, allowing developers to easily implement secure data hashing in their projects. Next, let’s delve … Read more
Last year, I specifically introduced the extremely rare C++ syntax <span>……</span> in the article “What does the …… mean in C++?” which is actually an abbreviated syntax for <span>…, …</span>. The following three forms are completely equivalent: template<class… Args> void f(Args……) {} template<class… Args> void f(Args… …) {} template<class… Args> void f(Args…, …) {} The … Read more
JSON is a lightweight data interchange format, while C++ is a powerful programming language. However, the combination of C++ and JSON is not so natural. Fortunately, the jsonifier library has emerged, acting as a bridge that allows C++ and JSON to communicate easily. jsonifier enables C++ programs to conveniently handle JSON data, whether it is … Read more
1. Program Basics Sequential Structure: Understanding program flow, basic input and output. Branching Structure: if statements, simple logical operations. Loop Structure: Using for loops and while loops to solve repetitive tasks. Arrays: Using arrays to store and access collections of data. Strings: Basics of string manipulation, such as concatenation and character search. Practical Links: A … Read more
When learning VC++, one often encounters the linker error LNK2001. This error is quite frustrating because, for programmers, the easiest errors to fix are compilation errors, and generally speaking, linker errors occur after compilation has already succeeded. There are many reasons for linker errors, especially LNK2001, which often leaves people puzzled. Without a deep understanding … Read more