Solution: Middle of the Linked List
Discover how to determine the middle node of a singly linked list efficiently using fast and slow pointers. This lesson guides you through implementing an optimized solution that minimizes space complexity and completes in a single pass by advancing two pointers at different speeds.
Statement
Given the head of a singly linked list, return the middle node of the linked list. If the number of nodes in the linked list is even, there will be two middle nodes, so return the second one.
Constraints:
Let n be the number of nodes in a linked list.
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n