Jan 7 · 2 min read · 🗓️ Date: January 8, 2026📌 Challenge:🧩 Problem 1: Linked List Cycle – LeetCode #141 (Easy)🧩 Problem 2: Middle of the Linked List – LeetCode #876 (Easy)💻 Topic: Two Pointer, Linked List, Fast & Slow Pointer ✅ Problem Statement (Summary): 🔹 Probl...
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Jun 19, 2025 · 3 min read · Description Write an algorithm to determine if a number n is a happy number. A happy number is defined by the following process: Starting with any positive integer, replace the number by the sum of the squares of its digits. Repeat the process unti...
Join discussionApr 2, 2025 · 4 min read · In this article, you will learn how to find a linked list. I have found this same coding problem on Leetcode and HackerRank. You can use either to follow along because it's the same algorithm, though the names for the types on Leetcode and Hackerrank...
Join discussionJan 20, 2025 · 4 min read · Floyd's Cycle-Finding Algorithm (Tortoise and Hare) – Beginner-Friendly Guide Floyd’s Cycle-Finding Algorithm, commonly called the Tortoise and the Hare Algorithm, is a clever way to detect cycles in a linked list without using extra space. It uses t...
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Mar 4, 2024 · 4 min read · NOTE: The problem 141: "Linked List Cycle" is a subproblem of this problem, so the solution can be slightly modified to solve that too. Problem statement Given the head of a linked list, return the node where the cycle begins. If there is no cycle, ...
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Apr 7, 2023 · 8 min read · Hello, Welcome to my Day 3 of #30Days of Problem Solving and finding solutions to Leetcode's Data Structures and Algorithm questions. Here, I choose a question daily and try to solve it, and finally pen down my process of flow in solving the question...
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