--- title: "#palindrome articles | Hashnode" description: "Explore 50 articles tagged #palindrome on Hashnode. Tutorials, guides, and how-tos from the community." url: "https://hashnode.com/tag/palindrome" --- Tag # #palindrome 50 posts · 0 followers [Roodius](https://hashnode.com/@roodius) · [Apr 10](https://hashnode.com/posts/given-a-string-s-return-the-longest-palindromic-substring-in-s/69d94505c8e5007ddbe64421) ### [Given a string s, return the longest palindromic substring in s.](https://rust-roodius.hashnode.dev/given-a-string-s-return-the-longest-palindromic-substring-in-s?utm_source=hashnode&utm_medium=feed) The Longest Palindromic Substring problem involves finding the longest contiguous palindrome within a given string. A palindrome is a sequence of char 2 min read · [rust-roodius.hashnode.dev](https://rust-roodius.hashnode.dev/given-a-string-s-return-the-longest-palindromic-substring-in-s?utm_source=hashnode&utm_medium=feed) [Aswin Arya](https://hashnode.com/@AswinArya) · [Feb 23](https://hashnode.com/posts/java-program-to-check-palindrome/699c3e821ff70686f28eb41e) ### [Java Program to Check Palindrome](https://aswinarya.hashnode.dev/java-program-to-check-palindrome?utm_source=hashnode&utm_medium=feed) Learn how to check a palindrome in Java using String reverse logic and the efficient two-pointer approach. Includes examples, code, output, and interv 2 min read · [aswinarya.hashnode.dev](https://aswinarya.hashnode.dev/java-program-to-check-palindrome?utm_source=hashnode&utm_medium=feed) [Locus](https://hashnode.com/@locusassignments121) · [Feb 9](https://hashnode.com/posts/what-is-palindrome-a-simple-guide-with-meaning-definition-and-examples/6989835c81bfb5101962c48f) ### [What Is Palindrome? A Simple Guide with Meaning, Definition, and Examples](https://locusassignment12.hashnode.dev/what-is-palindrome-a-simple-guide-with-meaning-definition-and-examples?utm_source=hashnode&utm_medium=feed) Have you never noticed words such as level or madam which are read the same at both ends? We tend to stop and smile at such little language surprises. It is the mere interest where palindromes start. In the case of university students, studying palin... 4 min read · [locusassignment12.hashnode.dev](https://locusassignment12.hashnode.dev/what-is-palindrome-a-simple-guide-with-meaning-definition-and-examples?utm_source=hashnode&utm_medium=feed) [Kamlesh Choudhary](https://hashnode.com/@kamlesh077) · [Aug 22, 2025](https://hashnode.com/posts/palindrome-number-in-javascript/68a890717a16a70c62112dd6) ### [🔁 Palindrome Number in JavaScript](https://blog.kamlesh.patel.com/palindrome-number-in-javascript?utm_source=hashnode&utm_medium=feed) 🔁 Palindrome Number in JavaScript A palindrome is a word, phrase, or number that reads the same forward and backward. ✨ Examples: Words: madam, level, radar Numbers: 121, 1331, 444 Numbers like 123 or -121 ❌ are not palindromes. 🧩 Problem Sta... 3 min read · [blog.kamlesh.patel.com](https://blog.kamlesh.patel.com/palindrome-number-in-javascript?utm_source=hashnode&utm_medium=feed) [Anni Huang](https://hashnode.com/@HuangAnni) · [Jul 8, 2025](https://hashnode.com/posts/leetcode-647-palindromic-substrings-three-solution-from-on3-to-on-med-java/686cb7aeab964ccef469639a) ### [LeetCode 647 Palindromic Substrings - Three Solution from O(n³) to O(n) - (Med, Java)](https://huanganni.hashnode.dev/leetcode-647-palindromic-substrings-three-solution-from-on3-to-on-med-java?utm_source=hashnode&utm_medium=feed) 647\. Palindromic Substrings When tackling LeetCode 647 (Palindromic Substrings), there are multiple ways to solve the problem. Today, I'll walk through three distinct approaches: the Brute Force method, the Expand Around Centers technique, and the a... 6 min read · [huanganni.hashnode.dev](https://huanganni.hashnode.dev/leetcode-647-palindromic-substrings-three-solution-from-on3-to-on-med-java?utm_source=hashnode&utm_medium=feed) [Nature](https://hashnode.com/@nature18) · [May 29, 2025](https://hashnode.com/posts/step-by-step-guide-to-leetcodes-palindrome-problem/68388a0af0d39c053bf68938) ### [Step-by-Step Guide to LeetCode's Palindrome Problem](https://letslearnsomething.hashnode.dev/step-by-step-guide-to-leetcodes-palindrome-problem?utm_source=hashnode&utm_medium=feed) Learn to solve LeetCode's Palindrome Number problem with examples and a step-by-step guide for both basic and optimized solutions 9 min read · [letslearnsomething.hashnode.dev](https://letslearnsomething.hashnode.dev/step-by-step-guide-to-leetcodes-palindrome-problem?utm_source=hashnode&utm_medium=feed) [Kaushal Maurya](https://hashnode.com/@KaushalM) · [May 28, 2025](https://hashnode.com/posts/valid-palindrome-from-string-manipulation-to-o1-space-two-pointers-java/6836e0a18d30558ef6022e60) ### [Valid Palindrome - From String Manipulation to O(1) Space Two-Pointers (Java)](https://kaushalm.hashnode.dev/valid-palindrome-from-string-manipulation-to-o1-space-two-pointers-java?utm_source=hashnode&utm_medium=feed) LeetCode #125 (Easy) 5 min read · [kaushalm.hashnode.dev](https://kaushalm.hashnode.dev/valid-palindrome-from-string-manipulation-to-o1-space-two-pointers-java?utm_source=hashnode&utm_medium=feed) [Rohit K](https://hashnode.com/@ak01rohit) · [Apr 9, 2025](https://hashnode.com/posts/check-if-a-linked-list-is-a-palindrome-using-fast-and-slow-pointers-in-c/67f6bcbddf26b929f752cfbd) ### [🔁 Check if a Linked List is a Palindrome – Using Fast & Slow Pointers in C++](https://climbing-leetcode.hashnode.dev/check-if-a-linked-list-is-a-palindrome-using-fast-and-slow-pointers-in-c?utm_source=hashnode&utm_medium=feed) "An Efficient Way to Check if a Linked List is a Palindrome" 3 min read · [climbing-leetcode.hashnode.dev](https://climbing-leetcode.hashnode.dev/check-if-a-linked-list-is-a-palindrome-using-fast-and-slow-pointers-in-c?utm_source=hashnode&utm_medium=feed) [Mansi Wanjale](https://hashnode.com/@MansiWanjale) · [Apr 1, 2025](https://hashnode.com/posts/day-2-one-step-at-a-time/67ed1918b48a7a7cd7546bab) ### [Day 2 - One Step at a Time 🚀](https://zerotohundred.hashnode.dev/day-2-one-step-at-a-time?utm_source=hashnode&utm_medium=feed) Coding and Orignality 3 min read · [zerotohundred.hashnode.dev](https://zerotohundred.hashnode.dev/day-2-one-step-at-a-time?utm_source=hashnode&utm_medium=feed) [Aman Walke](https://hashnode.com/@AmanVW) · [Mar 31, 2025](https://hashnode.com/posts/palindrome-number-leetcode-java-solution/684dab3669dad438eddb4f24) ### [Palindrome Number - LeetCode Java Solution](https://amanvw.hashnode.dev/palindrome-number-leetcode-java-solution?utm_source=hashnode&utm_medium=feed) Learn how to solve LeetCode Problem 9: Palindrome Number using Java including edge case handling, and performance evaluation. 3 min read · [amanvw.hashnode.dev](https://amanvw.hashnode.dev/palindrome-number-leetcode-java-solution?utm_source=hashnode&utm_medium=feed)