InterviewDigestTechnical2026-08-12
Check if a linked list has a cycle.
AI-Expanded — inferred from the question title, not from the original candidate report
Given the head of a singly linked list, determine if the list contains a cycle by identifying if any node can be reached again by continuously following the next pointer. Return true if there is a cycle in the list, otherwise return false, and ensure your solution operates with O(1) memory complexity.
Context & Summary
Technical interview focused on 3 DSA coding questions and resume-based discussions.
💻 Coding practice works best on desktop.
Code editors are too cramped on mobile screens.
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AI can automatically infer and generate example test cases for this question based on standard algorithmic constraints.