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Grokking the Coding Interview Patterns in JavaScript

Solution: Delete N Nodes After M Nodes of a Linked List

Understand how to efficiently modify a linked list by deleting N nodes after keeping M nodes repeatedly until the list ends. This lesson helps you implement an in-place, time-efficient traversal method with O(n) complexity and constant space usage. You will learn how to track and reconnect nodes to achieve the desired pattern of deletion within the linked list.

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Statement

Given the head of a linked list and two integers, m and n, remove some specific nodes from the list and return the head of the modified, linked list. The list should be traversed, and nodes removed as follows:

  1. Start with the head node and set it as the current node.

  2. Traverse the next m nodes from the current node without deleting them.

  3. Traverse the next ...