At this point, they meet. If the Hare (fast pointer) is two steps behind the Tortoise (slow pointer): The fast pointer moves two steps and the slow pointer moves one step. May 28, 2024 · IntroductionThe Fast & Slow pointer approach, also known as the Hare & Tortoise algorithm, is a pointer algorithm that uses two pointers which move through the array (or sequence/LinkedList) a Apr 12, 2025 · 📘 What is Fast and Slow Pointer? Two pointers are used: Slow Pointer (Tortoise) – moves 1 step at a time Fast Pointer (Hare) – moves 2 steps at a time When both pointers are used on a data structure (like a linked list), their interaction can help detect cycles, find the middle, check for palindromes, and more. According to Philip Wilkinson, a Linked List is a type of data structure that acts as a linear collection of nodes, and each node contains some information and a link or reference to another node. Given two pointers, named slow and fast, both start at the head of the list. At each iteration step, the slow pointer moves one step while the fast pointer moves two steps. Typically, the “fast” pointer moves two steps at a time, while the “slow K rotations Pattern: Fast and slow pointers Understanding the fast and slow pointer pattern Identifying the fast and slow pointer pattern Middle node search Split list in half newEqual halves Jul 23, 2025 · After each iteration where the slow pointer moves one step forward and the fast pointer moves two steps forward, the distance between the two pointers increases. Perfect for coding interview preparation. The fast pointer typically moves faster than the slow pointer. The slow pointer moves one step, the fast pointer moves two steps.

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