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Problem: Remove Duplicates from Sorted List

Easy
15 min
Explore techniques to remove duplicate values from a sorted linked list efficiently using in-place operations. Understand how to handle linked list nodes without extra memory, ensuring each element appears only once. This lesson helps you develop solutions that maintain the list's sorted order while optimizing for space and time.

Statement

Given the head of a sorted linked list, remove all duplicates such that each element appears only once, and return the list in sorted order.

Constraints:

  • 00 \leq n 300\leq 300, where n is the number of nodes in the list.

  • 100-100 \leq Node.val 100\leq 100

  • The list is guaranteed to be sorted in ascending order.

Problem
Ask
Submissions

Problem: Remove Duplicates from Sorted List

Easy
15 min
Explore techniques to remove duplicate values from a sorted linked list efficiently using in-place operations. Understand how to handle linked list nodes without extra memory, ensuring each element appears only once. This lesson helps you develop solutions that maintain the list's sorted order while optimizing for space and time.

Statement

Given the head of a sorted linked list, remove all duplicates such that each element appears only once, and return the list in sorted order.

Constraints:

  • 00 \leq n 300\leq 300, where n is the number of nodes in the list.

  • 100-100 \leq Node.val 100\leq 100

  • The list is guaranteed to be sorted in ascending order.