Question: Define a min-max stack to be a data structure that supports the stack operations of push() and pop() for objects that come from a total

Define a min-max stack to be a data structure that supports the stack operations of push() and pop() for objects that come from a total order, as well as operations min() and max(), which return, but do not delete the minimum or maximum element in the min-max stack, respectively. Describe an implementation for a min-max stack that can perform each of these operations in O(1) time.

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