NeetCode #339LC-1836MediumLinked List
← Back to All Problems#339 · #1836 · Remove Duplicates From an Unsorted Linked List(从未排序的链表中移除重复元素)
📌 Problem Statement & Constraints
Given the head of an unsorted linked list, remove all nodes that have duplicate values, keeping only the distinct values, and return the head. Constraints:
1 <= n <= 10^5, 1 <= Node.val <= 10^4.🔒
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