RodneyShag/HackerRank_solutions resource

Health v2 · maintenance only

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2752 stars · 1418 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

A curated collection of 317 efficient Java and MySQL solutions to HackerRank coding challenges, organized by track (Algorithms, Data Structures, SQL, Cracking the Coding Interview, etc.). It serves as a study reference for interview preparation and competitive programming practice.

Use cases

• prepare for coding interviews with worked solutions
• study efficient Java solutions to algorithm problems
• practice data structures and algorithms questions
• learn SQL through solved HackerRank challenges
• compare my HackerRank solution against an efficient reference
• work through Cracking the Coding Interview problems

When to choose

• you are preparing for technical interviews using HackerRank
• you want reference implementations of classic algorithm and data structure problems in Java
• you need worked examples for statistics, SQL, or implementation challenges

When to avoid

• you need a runnable library or tool rather than example code
• you work in a language other than Java or MySQL
• you want interactive tutorials or explanations rather than solution code

Facets

learning-resource · maturity maintenance

developer-tools education tutorials jvm hackerrank coding-interview java sql data-structures algorithms solutions interview-prep

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For agents

markdown · JSON · MCP: product_card(name="RodneyShag/HackerRank_solutions")