HackerRank Solutions in Java

Comprehensive collection of efficient HackerRank solutions with video tutorials for 30 Days of Code, Algorithms, Data Structures, and Interview Preparation.

This repository contains efficient HackerRank solutions for most HackerRank challenges with video tutorials.

What You'll Find Here

• HackerRank solutions in Java with clean, optimized code
• 30 Days of Code complete solutions
• Algorithms & Data Structures tutorials
• Interview Preparation Kit solutions
• Cracking the Coding Interview problems solved
• Video explanations for complex problems
• Problem-solving strategies for coding interviews

Whether you're preparing for coding interviews, learning DSA, or solving HackerRank challenges, you'll find comprehensive solutions and explanations here.

🔧 Helpful Tool for Coding Practice

While solving HackerRank problems, outputs often get messy — especially JSON, arrays, or logs.

To quickly clean and format them, I use DataFormatterPro:

DataFormatterPro — format JSON, CSV & logs

Useful for:

• Formatting JSON / CSV outputs
• Making examples readable before submission
• Sharing clean solutions in discussions

• 30 DAYS OF CODE

• JAVA

• ALGORITHMS

• CRACKING THE CODING INTERVIEW

• DATA STRUCTURES

• GENERAL PROGRAMMING