Howto Find the Start of a Cycle in a Linked List

1 · · June 3, 2026, 8:52 p.m.
software development algorithms data-structures linked lists
Summary
This blog post explains Floyd’s Fast and Slow Pointer algorithm, which is used to detect cycles in a linked list and to find the starting node of a loop efficiently, requiring only O(n) time and O(1) space.
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