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Grokking the Coding Interview Patterns in C++

Solution: Remove Duplicates from Sorted List

Understand how to remove duplicates from a sorted linked list by traversing and modifying pointers in-place. Learn to identify duplicates by comparing nodes and adjusting links to maintain a sorted order without extra space.

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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:

  • 0≤0 \leq n ≤300\leq 300, where n is the number of nodes in the list.

  • ...