How would you find the loop in a linked list?
- Iterate through the list and check for a null reference
- Use a hash table to store visited nodes
- Use a stack to track visited nodes
- Use Floyd's Tortoise and Hare algorithm
Floyd's Tortoise and Hare algorithm is a popular technique to detect a loop in a linked list. It involves two pointers moving at different speeds through the list. If there's a loop, they will eventually meet. The other options are not efficient for loop detection.
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