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there is no constraint telling that a value cannot be duplicate in the linked list.
A possible LL could be : 1 -> 2 -> 2 -> 3, it has no cycle.
But your algo returns true.
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Linked Lists: Detect a Cycle
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there is no constraint telling that a value cannot be duplicate in the linked list. A possible LL could be : 1 -> 2 -> 2 -> 3, it has no cycle. But your algo returns true.