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Grokking the Coding Interview Patterns in Python

Solution: Remove Linked List Elements

Explore how to efficiently remove all nodes containing a specific value from a linked list by using in-place modification. Learn to use dummy nodes and two-pointer traversal to update links without extra space. This lesson helps you master memory-optimized manipulation of linked lists in coding interviews.

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Statement

You are given the head of a linked list and an integer k. Remove all nodes from the linked list where the node’s value equals k, and return the head of the updated list.

Constraints:

  • The number of nodes in the list is in the range [0,103][0, 10^3].

  • ...