In recent weeks, several parents have asked me the same question: “Teacher, is it necessary for children to take the GESP C++ exam now?” Every time I hear this question, my first reaction is not about whether it should be done, but rather—how is the child doing right now? Most of the time, parents feel … Read more
Do kids lose points when writing C code after learning C++? Parents are also confused: Are C and C++ alternatives or complementary? Today, we will break down complex programming logic using two very intuitive life metaphors, making it easy for both parents to guide and children to learn independently! 1. Core Positioning: C is the … Read more
Introduction Hello everyone, I am A Gan, the founder of “Running Cpp / C++” on Knowledge Planet. Today, I would like to share with you the interview experiences related to C++ positions that our community members have organized and are continuously updating. This is the most comprehensive collection available online. Interview Experience Sharing Due to … Read more
In high-concurrency scenarios, have you encountered the dilemma of using mutexes to protect shared data, only to face performance bottlenecks due to frequent thread blocking? For instance, in high-frequency trading systems for order processing or server request queues, the overhead of context switching caused by lock contention often becomes the “last straw” that breaks performance. … Read more
In the current era of large language models (LLMs), building an efficient inference framework from scratch allows us to gain a deeper understanding of the underlying logic of AI-generated content. C++, with its close-to-hardware and low-overhead characteristics, has become the preferred language for implementing lightweight LLM inference. This article will integrate the core design ideas … Read more
To solve the “Two Sum” problem in C++, there are mainly two mainstream methods: brute force enumeration and hash table. Below, I will explain the implementation of these two methods in detail and provide code examples. Here is a comparison table of the two solutions to help you quickly understand their characteristics: | Method | … Read more
Link to Previous Issue:Interpretation of Google C++ Style Guide Series Part 1 (Header Files) 2.1 Namespaces Except for a few special cases, code should be placed within a namespace, which should have a unique name that includes the project name and may optionally include the file path. The use of <span>using namespace foo</span> is prohibited, … Read more
While data scientists are still struggling with memory overflow in Pandas, C++ has quietly completed TB-level data processing. In the field of data science, Pandas has become the de facto standard due to its elegant API and rich functionality. However, when the data scale exceeds tens of millions of rows, performance bottlenecks begin to emerge. … Read more
NumCpp is a template-based, header-only C++ library designed to provide C++ developers with an experience similar to the Python NumPy library. If you need to perform numerical computations or matrix operations in your C++ projects, NumCpp can help you achieve results efficiently with its familiar API and high performance of C++. 🔍 Introduction to NumCpp … Read more
[Problem Description] Little A has an array consisting of n non-negative integersa=[a₁，a₂，a₃，…，aₙ] . He will repeatedly perform the following operations on the array a until the array a only contains 0. In one operation, Little A will sequentially complete the following three steps: 1、Find the largest integer in the array a, and denote its index … Read more