data structures - How to Find a middle element in a link list without traversing the entire list? -

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how find middle element in link list without traversing entire list . ? ...and @ maximum can use 2 pointers...how ? .... , length of list not given.

i don't see how without traversing entire list unless know length.

i'm guessing answer wants 1 pointer traversing 1 element @ time, while second pointer moves 2 elements @ time.
way when second pointer reaches end, first pointer @ middle.


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