LeetCode – Remove Duplicates from Sorted List

Given a sorted linked list, delete all duplicates such that each element appear only once. For example, Given 1->1->2, return 1->2. Given 1->1->2->3->3, return 1->2->3. Thoughts The key of this problem is using the right loop condition. And change what is necessary in each loop. You can use different iteration conditions like the following 2 … Read more