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There is no constraint saying the values are unique.
With this linear Linked List : 1->2->2->3->2->null . The value 2 is in the list 3 times.
Your method will return true.
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Linked Lists: Detect a Cycle
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There is no constraint saying the values are unique. With this linear Linked List : 1->2->2->3->2->null . The value 2 is in the list 3 times. Your method will return true.