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29
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3answers
30k views

Floyd's Cycle detection algorithm | Determining the starting point of cycle

I am seeking help understanding Floyd's cycle detection algorithm. I have gone through the explanation on wikipedia (http://en.wikipedia.org/wiki/Cycle_detection#Tortoise_and_hare) I can see how the ...
7
votes
2answers
733 views

Is a stack machine with a forward read iterator Turing complete?

It is well known that a machine with a single stack as only unlimited storage is not Turing complete, if it can only read from the top of the stack. I want a machine which is (slightly) more powerful ...
0
votes
1answer
248 views

What is `wasted space` parameter and why is it O(n) for a linked list

I'm reading a book on data structures and there is a comparison between linked list, array and dynamic array. The parameter name is wasted space. Here are the values: \begin{array}{cc} \text{...