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basic, stack, data, structure

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1. Let us say you are given a basic stack data structure with just "core" operations push and pop. Is it possible to implement top using these two operations? Explain. (or) Are the following code segments equivalent? Why?

x = s.top();

x = s.pop();
s.push(x);

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Solution Summary

This job notes basic stack data structure. Implementing the top using two operations are determined.

Solution Preview

Yes, they are equivalent. pop() removes the object at the top of this stack and returns that object ...

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