advanced algorithms

C++ Learning Manual – Templates and Generic Programming 39 – STL Containers and Algorithms (vector, map, sort)

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C++ Learning Manual - Templates and Generic Programming 39 - STL Containers and Algorithms (vector, map, sort)

In previous studies, we delved into the mechanisms of C++ templates, including function templates and class templates. They are the cornerstone of generic programming—writing code independent of data types. The STL (Standard Template Library) is the most outstanding practice of the generic programming concept. It provides a series of generic, type-safe, high-performance containers, algorithms, and … Read more

The Great Integer Reversal Showdown in Python: A Journey from Novice to Expert

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The Great Integer Reversal Showdown in Python: A Journey from Novice to Expert

Attention all Pythonistas! Today we will explore the various fascinating techniques for reversing integers in Python. Whether you are a beginner or an experienced developer, this guide will surely enlighten you! 🎯 Basic Concept of Integer Reversal Integer reversal is the process of reversing the order of digits in an integer. For example: 123 → … Read more

C++ Integer Reversal Showdown: A Journey from Novice to Expert

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C++ Integer Reversal Showdown: A Journey from Novice to Expert

Hello, code wizards! Today we will explore the various magical methods of integer reversal in C++. Whether you are a beginner just starting out or a seasoned pro, this guide will open your eyes! 🎯 Basic Concept of Integer Reversal Integer reversal is the process of reversing the order of digits in an integer. For … Read more

The 16th Blue Bridge Cup C++ Junior Group Provincial Competition Real Questions and Solutions

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The 16th Blue Bridge Cup C++ Junior Group Provincial Competition Real Questions and Solutions

The 2025 Blue Bridge Cup for the youth group, both the provincial and national competitions have concluded! Here are the real questions for everyone to study, remember to follow along! 1. Multiple Choice Questions Running the following program, the output result is ( ) int func(int y) { y -= 5; cout << “x”; return … Read more

Comprehensive Analysis of Strings in C++: From Basics to Advanced

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Comprehensive Analysis of Strings in C++: From Basics to Advanced

Click the blue text to follow us Introduction In competitions like CSP and NOIP, string manipulation is one of the frequently tested topics. Choosing the right string type, understanding their storage principles, and efficiently manipulating strings often determine whether you can write concise, correct, and efficient code. Today, we will comprehensively review strings in C++, … Read more

Learning C++ Programming from Scratch, Day 396: Converting Positive Integer N to Binary Number; Question Bank Answer; Method 1

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Learning C++ Programming from Scratch, Day 396: Converting Positive Integer N to Binary Number; Question Bank Answer; Method 1

1108 – Converting Positive Integer N to Binary Number What does this program do? This program acts like a “digital translator” that converts the numbers we commonly use (like 10, 25) into binary numbers used by computers (like 1010, 11001). It’s similar to translating Chinese into English, but here we are translating decimal numbers into … Read more

C++ Competition Daily Problem – Day 822

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C++ Competition Daily Problem - Day 822

Today is the 822th day of learning programming with a slightly cold rain! Hello, everyone! This is the CSP 2024 Group J Preliminary Exam Questions. Day 822 CSP 2024 Group J Preliminary Exam Questions Read the Program 2. Read the Program (The program input does not exceed the defined range of arrays or strings; for … Read more

C++ Certification Learning Resource Compilation (250824)

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C++ Certification Learning Resource Compilation (250824)

This post will compile the resources related to the GESP certification exam published on this site, categorized and organized, and updated periodically. [Current Update] Level 5 Exam Outline Exam Point Knowledge Explanation Exam Level (2) Master the knowledge related to simulating high-precision addition, subtraction, multiplication, and division using C++ arrays. [GESP] C++ Level 5 Exam … Read more

C++ Competition Daily Problem – Day 819

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C++ Competition Daily Problem - Day 819

Today is the 819th day of learning programming with a slightly cold rain! Hello, everyone! This is the CSP 2024 Group J Preliminary Exam problem. Day 819 CSP 2024 Group J Preliminary Exam Multiple Choice Question Question 13 Given an empty stack that supports push and pop operations. If the elements pushed onto the stack … Read more

Day 21: Developing Programming Habits in 21 Days: C++ Problem Solving Day 21

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Day 21: Developing Programming Habits in 21 Days: C++ Problem Solving Day 21

Learn programming with Lao Ma by “leveling up and fighting monsters”! Involves examination: Computer Society Programming Ability Level Certification (GESP) Activity content: Provides real questions of different levels for students to choose and practice Preparation advice: Choose corresponding questions based on your preparation level Additional value: Can be used as preparation training for whitelist competitions … Read more