Copy list with random pointers

Q: Copy list with random pointers

This question evaluates understanding of linked list and pointer manipulation, the ability to implement a deep copy that preserves arbitrary random pointers, and analysis of time and space complexity within the Coding & Algorithms domain.

Q: How do I approach Coding & Algorithms interview questions?

Coding & Algorithms questions require understanding of core concepts and practice. PracHub provides solutions with explanations to help you master coding & algorithms interviews.

Question

You are given the head of a singly linked list where each node has two pointers: next and random (random may point to any node or be null). Construct a deep copy of the list and return the head of the copied list. Aim for O(n) time and O(

extra space beyond the new nodes by weaving/unweaving or an equivalent technique. Explain how you preserve random relationships and how you would verify correctness with corner cases such as cycles via random, single-node lists, and all-random-null.

Copy list with random pointers

Overview

Comments (0)