Circular Linked List
Detailed guide and Python implementation for the 'Circular Linked List' problem.
Problem Statement
Write a function create_circular_linked_list(arr) that takes a list of integers arr, constructs a singly circular linked list (where the tail's next points back to the head), and returns a list of values traversing the list starting at the head and ending when the cycle is detected (each node should be visited exactly once).
- •0 <= len(arr) <= 1000
- •-10^4 <= arr[i] <= 10^4
Examples
arr = [1, 2, 3]
[1, 2, 3]
We build 1 -> 2 -> 3 -> 1. The traversal ends before visiting 1 a second time.
Need a Hint?
Edge Cases to Watch
- Empty input structures
- Single element inputs
- Large numerical bounds
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