HackerRank Practice Solutions

This repository contains my solutions to various HackerRank coding challenges and practice exercises.

📁 Repository Structure

.
├── Monthly Challenge/          # Solutions for monthly challenge problems
├── js practiced/              # JavaScript practice solutions
├── html practiced/            # HTML practice files
├── flexbox.html              # CSS Flexbox practice
└── grid.html                 # CSS Grid practice

📂 Contents

Monthly Challenge

Contains JavaScript solutions for monthly challenge problems:

• counting-sort.js - Counting sort algorithm implementation
• diagonal-differences.js - Diagonal difference calculation
• flipping-bits.js - Bit manipulation problem
• lonely-integer.js - Finding unique integer in array
• min-max.js - Min-max sum calculation
• pangram.js - Pangram checker
• plus-minus.js - Ratio calculations
• spares-array.js - Sparse array operations
• time-conversion.js - Time format conversion

JavaScript Practiced

Collection of algorithm and problem-solving solutions:

• angry-professor.js - Class cancellation logic
• append-delete.js - String manipulation
• beautiful-movie-days.js - Date calculation
• circular-array-rotation.js - Array rotation operations
• cut-sticks.js - Stick cutting problem
• day-of-the-programmer.js - Date finding problem
• designer-pdf-viewer.js - PDF viewer simulation
• electronics-shop.js - Budget optimization
• jumping-on-clouds2.js - Array jumping problem
• library-fine.js - Fine calculation logic
• missing-numbers.js - Finding missing numbers
• permutation-equation.js - Permutation solving
• picking-numbers.js - Number picking optimization
• repeated-string.js - String repetition counting
• save-the-prisoner.js - Circular distribution problem
• sherlock-squares.js - Perfect square counting
• the-hurdle-race.js - Hurdle jumping calculation
• utopian-tree.js - Tree growth simulation
• viral-advertising.js - Viral spread calculation

HTML/CSS Practice

• time.html - HTML time practice
• flexbox.html - CSS Flexbox layout practice
• grid.html - CSS Grid layout practice

🚀 Usage

Running JavaScript Solutions

To run any JavaScript solution:

node "path/to/file.js"

Example:

node "Monthly Challenge/counting-sort.js"
node "js practiced/angry-professor.js"

Viewing HTML Files

Open any HTML file in a web browser to see the CSS practice examples:

• Double-click the HTML file, or
• Right-click and select "Open with Browser", or
• Serve using a local development server

📝 Notes

• All JavaScript solutions include test cases in the files
• Most solutions follow HackerRank's function signature requirements
• HTML files demonstrate various CSS layout techniques

🔗 Links

• HackerRank Profile
• Repository

📄 License

This is a personal practice repository. Feel free to use these solutions for learning purposes.