Leetcode Problem 2487. Remove Nodes From Linked List

2487. Remove Nodes From Linked List

Leetcode Solutions

Reverse and Remove Approach

  1. Reverse the linked list.
  2. Initialize a variable max_val to hold the maximum value encountered so far.
  3. Traverse the reversed list, keeping track of the previous node.
  4. If the current node's value is less than max_val, remove the current node by setting prev.next to current.next.
  5. If the current node's value is greater than or equal to max_val, update max_val and move prev to the current node.
  6. Continue until the end of the list is reached.
  7. Reverse the list again to restore the original order.
  8. Return the head of the modified list.
UML Thumbnail

Iterative One-Pass Approach with Stack

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