Latest Articles
Discover our latest posts and insights from the Kode$word journey
LeetCode 3174: Clear Digits — Multiple Approaches Explained
Learn How to Solve LeetCode 3174 With 3 Different Approaches in Java — From Brute Force to Optimal
Stack Problems Explained: NGR, NGL, NSR, NSL — The Four-Problem Family You Must Master
Learn how to solve Next Greater Element (NGE), Previous Greater Element (NGL), Next Smaller Element (NSE), and Previous Smaller Element (NSL) in Java using a monotonic stack. Full GFG solutions explained with dry runs, edge cases, and real-world examples.
Reverse a Stack — GFG Problem Solved (3 Approaches Explained)
Learn how to reverse a stack in Java with 3 different approaches — extra stack, ArrayList, and recursion. Full solution to the GFG "Reverse a Stack" problem explained step by step in easy language with code.
Stack Data Structure in Java: The Complete In-Depth Guide
Everything You Need to Know — What It Is, How It Works, Multiple Implementations, Operations, Advantages, Disadvantages, and Practice Problems
Master LeetCode 92: Reverse Linked List II | Detailed Java Solution & Explanation
Learn how to reverse a specific portion of a linked list with easy-to-understand approaches, step-by-step dry runs, and time complexity analysis.
Find Length of Loop in Linked List — Complete Guide with Intuition, Dry Run & Floyd’s Cycle Algorithm
Detect Loop and Calculate Its Length Efficiently Using Fast & Slow Pointer Technique
Maximum Twin Sum of a Linked List (LeetCode 2130) — Intuition, Dry Run & Optimal Approach
Learn How to Pair Nodes Efficiently Using Fast & Slow Pointer and Reverse Technique
LeetCode 234: Palindrome Linked List (Java) | Intuition, Dry Run & O(1) Space Solution
Learn how to solve LeetCode 234 Palindrome Linked List using an optimal O(n) time and O(1) space approach. Includes intuition, dry run video, and clean Java solution.
LeetCode 2095. Delete the Middle Node of a Linked List – Fast and Slow Pointer Approach
A Complete Guide with Intuition, Detailed Dry Run, and Optimal Solution in O(n) Time