HackerRank Problems

A showcase of the HackerRank problems I solve.

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About

This repository collects my solutions to HackerRank challenges. I work through algorithm, data structure, and language-proficiency problems regularly to sharpen my problem-solving skills, and every solution I complete lands here.

Each file holds one finished solution and opens with a short comment describing how the code works.

Repository Structure

Folder	Language	What's inside
Python/	Python 3	The Python domain, grouped by subdomain
30 Days of Code/	Python 3	The 30 Days of Code tutorial track
Problem Solving/	Python 3	Algorithm challenges, starting with the Warmup set
Java/	Java	Java introduction challenges
10 Days of Js/	JavaScript	The 10 Days of JavaScript tutorial track
SQL/	SQL	SQL cheat sheet and practice queries

Python subdomains

Subdomain	Folder
Introduction	Python/Introduction
Basic Data Types	Python/BasicDataTypes
Strings	Python/Strings
Sets	Python/Sets
Math	Python/Math
Itertools	Python/itertools
Collections	Python/Collections
Date and Time	Python/DateTime
Errors and Exceptions	Python/Exceptions
Classes	Python/Classes
Built-Ins	Python/Built-ins
Python Functionals	Python/Functionals
Regex and Parsing	Python/RegexParsing.py
XML	Python/XML
Closures and Decorators	Python/ClosuresDecorators.py
Numpy	Python/Numpy
Debugging	Python/Debugging

File Naming Convention

Solutions are organized into folders by language and category, and each file is named after its problem:

[ProblemName].[ext]

For example, SolveMeFirst.py or DiagonalDifference.py.

Git Commit Workflow

I keep a consistent, minimal commit history. Once a solution is tested and verified:

git add .
git commit -m "[Problem Name] Completed"
git push origin main

Tech Stack

Language	Used for
Python 3	Python domain, 30 Days of Code, Problem Solving
Java	Java domain
JavaScript	10 Days of JavaScript
SQL	SQL domain

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Solved and maintained by SeanRDC