How can we remove loops in a linked list? What are the functions of fast and slow pointers?
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Answer / Vishwash Kumar Singh
To detect and remove a loop in a linked list, use Floyd's cycle-finding algorithm. This method uses two pointers: a fast pointer (covering more nodes at each step) and a slow pointer (covering one node at each step). If there is a loop, the fast pointer will meet the slow pointer at some point in the loop. To remove the loop, modify the linked list such that the last node of the loop points to null.
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