Welcome to your all-in-one hub for mastering problem-solving through coding! This repository is a growing collection of challenges and solutions from various platforms such as Codewars, LeetCode, HackerRank, Edabit, and Codeforces—designed to strengthen your skills in JavaScript, TypeScript, C++, and beyond.
Programming-Challenges__Problem-Solving/
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├── Leetcode-Challenges/ # solutions for LeetCode problems using different programming languages
├── Codeforces-Challenges/ # solutions for Codeforces problems using different programming languages
├── codewars-js/ # JavaScript solutions for Codewars problems
├── general-problem-solving/ # Other problems not tied to a specific platform
- ✅ Curated challenges with clear naming.
- 🧾 Well-commented solutions to explain logic.
- 🧠 Multiple approaches to the same problem where applicable.
- 🌐 Platform links for direct access to challenges.
Whether you're a beginner or a seasoned developer, this repository is for:
- 📚 Practicing algorithmic and data structure problems.
- 🧪 Preparing for technical interviews.
- 🛠️ Enhancing real-world problem-solving skills.
This table includes problems/challenges with their solutions:
| # | Challenge Name | Platform | Programming Language | Challenge Link | Solution Link [GitHub] |
|---|---|---|---|---|---|
| 1 | Even or Odd | Codewars | JavaScript | Challenge  |
Solution |
| 2 | Sum of Positive | Codewars | JavaScript | Challenge  |
Solution |
| 3 | Sum without highest and lowest number | Codewars | JavaScript | Challenge |
Solution |
| 4 | String repeat | Codewars | JavaScript | Challenge |
Solution |
| 5 | Convert number to reversed array of digits | Codewars | JavaScript | Challenge |
Solution |
| 6 | Counting Sheep | Codewars | JavaScript | Challenge |
Solution |
| 7 | Opposite Number | Codewars | JavaScript | Challenge |
Solution |
| 8 | Return Negative | Codewars | JavaScript | Challenge |
Solution |
| 9 | Jenny's secret message | Codewars | JavaScript | Challenge |
Solution |
| 10 | A Needle in the Haystack | Codewars | JavaScript | Challenge |
Solution |
| 11 | Count of positives / sum of negatives | Codewars | JavaScript | Challenge |
Solution |
| 12 | Double Char | Codewars | JavaScript | Challenge |
Solution |
| 13 | Basic Mathematical Operations | Codewars | JavaScript | Challenge |
Solution |
| 14 | RGB To Hex Conversion | Codewars | JavaScript | Challenge |
Solution |
| 15 | Scrabble Score Challenge | Harvard-CS50 | TypeScript | Challenge |
Solution |
| 16 | Find the most repeated word in the sentence | Codeforces | JavaScript | Challenge |
Solution |
| 17 | Caesar Cipher Encryption | Harvard-CS50 | TypeScript | Challenge |
Solution |
| 18 | Maximum Adjacent Pair Sum with Equal Largest Digit | Leetcode | C++ | Challenge |
Solution |
| 19 | Median of Two Sorted Arrays — Merge-Based Approach | Leetcode | C++ | Challenge |
Solution |
| 20 | Two Sum | Leetcode | C++, TypeScript | Challenge |
Solution |
| 21 | Rotate Array | Leetcode | C++ | Challenge |
Solution |
| 22 | Longest Palindrome by Concatenating Two Letter Words | Leetcode | C++ | Challenge |
Solution |
| 23 | Max Pair Sum in an Array | Leetcode | C++ | Challenge |
Solution |
| 24 | Minimum Pair Removal to Sort Array I | Leetcode | C++ | Challenge |
Solution |
| 25 | Median of Two Sorted Arrays | Leetcode | C++ | Challenge |
Solution |
| 26 | Container With Most Water | Leetcode | C++ | Challenge |
Solution |
| 27 | Maximum Subarray | Leetcode | C++ | Challenge |
Solution |
| 28 | Symmetric Tree | Leetcode | C++ | Challenge |
Solution |
| 29 | Watermellon | Codeforces | C++ | Challenge |
Solution |
| 30 | Boy or Girl | Codeforces | C++ | Challenge |
Solution |
| 31 | Team | Codeforces | C++ | Challenge |
Solution |
| 32 | Anton and Letters | Codeforces | C++ | Challenge |
Solution |
| 33 | Sereja and Dima | Codeforces | C++ | Challenge |
Solution |
| 34 | Books | Codeforces | C++ | Challenge |
Solution |
| 35 | Pangram | Codeforces | C++ | Challenge |
Solution |
| 36 | Xenia and Ringroad | Codeforces | C++ | Challenge |
Solution |
| 37 | Sale | Codeforces | C++ | Challenge |
Solution |
| 38 | System of Equations | Codeforces | C++ | Challenge |
Solution |
| 39 | Points in Segments | Codeforces | C++ | Challenge |
Solution |
| 40 | Diverse Team | Codeforces | C++ | Challenge |
Solution |
| 41 | IQ Test | Codeforces | C++ | Challenge |
Solution |
| 42 | Beautiful Matrix | Codeforces | C++ | Challenge |
Solution |
| 43 | Vasya and String | Codeforces | C++ | Challenge |
Solution |
| 44 | They Are Everywhere | Codeforces | C++ | Challenge |
Solution |
| 45 | Cellular Network | Codeforces | C++ | Challenge  |
Solution  |
| 46 | Petya and Strings | Codeforces | C++ | Challenge |
Solution |
| 47 | Gravity Flip | Codeforces | C++ | Challenge |
Solution |
| 48 | Anton and Danik | Codeforces | C++ | Challenge |
Solution |
| 49 | Vanya and Fence | Codeforces | C++ | Challenge |
Solution |
| 50 | Fence | Codeforces | C++ | Challenge |
Solution |
Want to contribute or add your own solutions?
- Fork the repo
- Create a new branch
- Add your challenge + solution using the same naming structure
- Open a PR (Pull Request)!
This project is licensed under the MIT License.
Happy coding! 💻