HackerRank C++ Solutions

This repository contains solutions to problems from the C++ domain on HackerRank.
These were solved for practice and future reference.
Feel free to browse and use them for learning.

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📁 Folder Structure

Solutions are organized by subdomain from the HackerRank C++ track:

• introduction/ – Basic C++ syntax and I/O
• strings/ – String handling and parsing
• classes/ – Structs, classes, OOP concepts
• inheritance/ – Inheritance and polymorphism
• stl/ – Standard Template Library problems
• debugging/ – Debug and fix broken C++ programs
• other_concepts/ – Templates, preprocessor, operator overloading, etc.

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🧩 Subdomains and Solutions

Introduction

Problem	Difficulty	Solution
Say "Hello World" with C++	Easy
Input and Output	Easy
Basic Data Types	Easy
Conditional Statements	Easy
For Loop	Easy
Functions	Easy
Pointer	Easy
Arrays Introduction	Easy
Variable Sized Arrays	Easy

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Strings

Problem	Difficulty	Solution
Attribute Parser	Medium
StringStream	Easy
Strings	Easy

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Classes

Problem	Difficulty	Solution
Structs	Easy
Class	Easy
Classes and Objects	Easy
Box It!	Easy
Inherited Code	Medium
Exceptional Server	Medium
Virtual Functions	Medium
Abstract Classes - Polymorphism	Hard

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STL

Problem	Difficulty	Solution
Vector-Sort	Easy
Vector-Erase	Easy
Lower Bound-STL	Easy
Sets-STL	Easy
Maps-STL	Easy
Print Pretty	Easy
Deque-STL	Medium

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Inheritance

Problem	Difficulty	Solution
Inheritance Introduction	Easy
Rectangle Area	Easy
Multi Level Inheritance	Easy
Accessing Inherited Functions	Medium
Magic Spells	Hard

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Debugging

Problem	Difficulty	Solution
Hotel Prices	Medium
Cpp Exception Handling	Medium
Overloading Ostream Operator	Medium
Messages Order	Medium

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Other Concepts

Problem	Difficulty	Solution
C++ Class Templates	Easy
Preprocessor Solution	Easy
Operator Overloading	Medium
Overload Operators	Easy
Attending Workshops	Medium
C++ Class Template Specialization	Medium
C++ Variadics	Hard
Bit Array	Hard

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🚀 How to Use

g++ path/to/problem.cpp -o solution
./solution