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Challenge: Reverse Linked List

Explore how to reverse a singly linked list by implementing an efficient C++ solution. This lesson guides you through the process of updating the linked list head, helping you understand linked list manipulation essential for coding interviews.

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Statement

Given the head of a singly linked list, reverse the linked list and return its updated head.

Constraints:

Let n be the number of nodes in a linked list.

  • 11 \leq n 5×102
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