--- title: "#coding-challenge articles | Hashnode" description: "Explore 998 articles tagged #coding-challenge on Hashnode. Tutorials, guides, and how-tos from the community." url: "https://hashnode.com/tag/coding-challenge" --- Tag # #coding-challenge 998 posts · 119 followers [Lineesh Kumar](https://hashnode.com/@Lineesh-Kumar) · [3d ago](https://hashnode.com/posts/how-ai-coding-agents-are-changing-the-way-developers-manage-github-projects/6af0888f0148471a43ccf4f0) ### [How AI Coding Agents Are Changing the Way Developers Manage GitHub Projects](https://technoluting.hashnode.dev/how-ai-coding-agents-are-changing-the-way-developers-manage-github-projects?utm_source=hashnode&utm_medium=feed) Discover how AI coding agents automate GitHub tasks, streamline software development, and help developers manage coding workflows with less manual effort. 4 min read · [technoluting.hashnode.dev](https://technoluting.hashnode.dev/how-ai-coding-agents-are-changing-the-way-developers-manage-github-projects?utm_source=hashnode&utm_medium=feed) [Abirami Sri](https://hashnode.com/@abiramisri) · [Sep 6](https://hashnode.com/posts/day-6-of-my-30-day-dsa-journey-two-pointers-array-patterns/6a9d897e30172b9dd89f4ebb) ### [Day 6 of My 30-Day DSA Journey — Two Pointers & Array Patterns](https://abi-blog.hashnode.dev/day-6-of-my-30-day-dsa-journey-two-pointers-array-patterns?utm_source=hashnode&utm_medium=feed) Day 6 of my DSA journey with JavaScript: solving 5 LeetCode problems using Two Pointers, Sorting, and Prefix/Suffix Maximum patterns. 11 min read · [abi-blog.hashnode.dev](https://abi-blog.hashnode.dev/day-6-of-my-30-day-dsa-journey-two-pointers-array-patterns?utm_source=hashnode&utm_medium=feed) [Fer](https://hashnode.com/@ferztyle) · [Aug 5](https://hashnode.com/posts/leetcode-345-in-go-reverse-vowels-of-a-string-and-how-strings-bytes-and-runes-work-in-go/6a733384cef049374277f7fb) ### [LeetCode #345 in Go: reverse vowels of a string, and how strings, bytes, and runes work in Go](https://ferztyle.me/leetcode-345-in-go-reverse-vowels-of-a-string-and-how-strings-bytes-and-runes-work-in-go?utm_source=hashnode&utm_medium=feed) LeetCode #345 in Go: reverse vowels of a string, and how strings, bytes, and runes work in Go 15 min read · [ferztyle.me](https://ferztyle.me/leetcode-345-in-go-reverse-vowels-of-a-string-and-how-strings-bytes-and-runes-work-in-go?utm_source=hashnode&utm_medium=feed) [3](https://hashnode.com/posts/leetcode-345-in-go-reverse-vowels-of-a-string-and-how-strings-bytes-and-runes-work-in-go/6a733384cef049374277f7fb) [Eva J Patel](https://hashnode.com/@evapatel123) · [Jul 22](https://hashnode.com/posts/code-cheap-pay-double-the-real-cost-of-shortcuts-tech-debts/6a60e7f0c712ca2f51cea779) ### [Code Cheap, Pay Double: The Real Cost of Shortcuts (Tech Debts)](https://evapatel123.hashnode.dev/code-cheap-pay-double-the-real-cost-of-shortcuts-tech-debts?utm_source=hashnode&utm_medium=feed) Learn about Technical Debt 4 min read · [evapatel123.hashnode.dev](https://evapatel123.hashnode.dev/code-cheap-pay-double-the-real-cost-of-shortcuts-tech-debts?utm_source=hashnode&utm_medium=feed) [Bikki Singh](https://hashnode.com/@bikkisingh) · [Jun 23](https://hashnode.com/posts/php-bugs-every-beginner-makes/6a3a08c99d97c3bdbdef5766) ### [Top 10 PHP Bugs Every Beginner Makes (And How to Fix Them)](https://codepractice-blogs.hashnode.dev/php-bugs-every-beginner-makes?utm_source=hashnode&utm_medium=feed) Fix these once, stop seeing the same crashes forever 9 min read · [codepractice-blogs.hashnode.dev](https://codepractice-blogs.hashnode.dev/php-bugs-every-beginner-makes?utm_source=hashnode&utm_medium=feed) [Alex Mateo](https://hashnode.com/@alexmateo) · [Jun 8](https://hashnode.com/posts/how-to-derive-any-dp-table-from-scratch-without-memorizing-solutions/6a268b118a07d1ee69aa6057) ### [How to Derive Any DP Table From Scratch (Without Memorizing Solutions)](https://alexmateo.hashnode.dev/how-to-derive-any-dp-table-from-scratch-without-memorizing-solutions?utm_source=hashnode&utm_medium=feed) Stop memorizing DP solutions. Learn the 5-step derivation process that works on any problem, including ones you have never seen before. 9 min read · [alexmateo.hashnode.dev](https://alexmateo.hashnode.dev/how-to-derive-any-dp-table-from-scratch-without-memorizing-solutions?utm_source=hashnode&utm_medium=feed) [Shreya Shree](https://hashnode.com/@shreyashree) · [May 24](https://hashnode.com/posts/this-type-of-question-was-asked-in-tcs-nqt-advanced-coding-can-you-solve-it/6a1275c51a3cf7bffc76e884) ### [🏆 This Type of Question Was Asked in TCS NQT Advanced Coding - Can You Solve It?](https://shreyashree.hashnode.dev/this-type-of-question-was-asked-in-tcs-nqt-advanced-coding-can-you-solve-it?utm_source=hashnode&utm_medium=feed) Difficulty: Medium | Topic: Arrays, Frequency Counting, Input Validation If you're preparing for TCS NQT, this is exactly the kind of problem that shows up in the Advanced Coding section. 13 min read · [shreyashree.hashnode.dev](https://shreyashree.hashnode.dev/this-type-of-question-was-asked-in-tcs-nqt-advanced-coding-can-you-solve-it?utm_source=hashnode&utm_medium=feed) [Subransu Sekhar Maharana](https://hashnode.com/@subhransu12) · [May 8](https://hashnode.com/posts/setting-up-your-first-node-js-application-step-by-step/69fdf8eff239332df4d31e91) ### [Setting Up Your First Node.js Application Step-by-Step](https://webfundamentals.hashnode.dev/setting-up-your-first-node-js-application-step-by-step?utm_source=hashnode&utm_medium=feed) A beginner-friendly guide to installing Node.js, understanding the Node runtime, using the REPL, and creating your first server without any frameworks. 6 min read · [webfundamentals.hashnode.dev](https://webfundamentals.hashnode.dev/setting-up-your-first-node-js-application-step-by-step?utm_source=hashnode&utm_medium=feed) [Prajwal M](https://hashnode.com/@Glitchguy00) · [Apr 20](https://hashnode.com/posts/flattening-nested-arrays/69e631521faed8cd14ace8f8) ### [Flattening Nested Arrays: The Complete Guide](https://glitch-guy0.hashnode.dev/flattening-nested-arrays?utm_source=hashnode&utm_medium=feed) Nested arrays are everywhere in real-world JavaScript applications—from deeply structured API responses to hierarchical data trees. Whether you're working with comment threads, file systems, or organi 8 min read · [glitch-guy0.hashnode.dev](https://glitch-guy0.hashnode.dev/flattening-nested-arrays?utm_source=hashnode&utm_medium=feed) [Shubham Kumar Singh](https://hashnode.com/@shubhamsinghbundela) · [Apr 7](https://hashnode.com/posts/sort-0-1-2-dutch-national-flag-algorithm/69d5014a5da14bc70e515091) ### [Sort 0, 1, 2 (Dutch National Flag Algorithm)](https://shubhamsinghbundela.hashnode.dev/sort-0-1-2-dutch-national-flag-algorithm?utm_source=hashnode&utm_medium=feed) Sort 0, 1, and 2 using the Dutch National Flag algorithm. Learn the 3-pointer approach with step-by-step explanation in O(n) time and O(1) space. 3 min read · [shubhamsinghbundela.hashnode.dev](https://shubhamsinghbundela.hashnode.dev/sort-0-1-2-dutch-national-flag-algorithm?utm_source=hashnode&utm_medium=feed)