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Leetcode Problem 83. Remove Duplicates from Sorted List

83. Remove Duplicates from Sorted List

Leetcode Solutions

Removing Duplicates from a Sorted Linked List

  1. Check if the head is null or the list has only one node. If true, return the head as is.
  2. Initialize a pointer current to the head of the list.
  3. While current and current.next are not null: a. If current.val is equal to current.next.val, set current.next to current.next.next to remove the duplicate. b. Otherwise, move current to the next node.
  4. Return the modified list starting from the head.
UML Thumbnail

Collecting Unique Elements and Reconstructing the Linked List

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