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Maximum Frequency Stack

Explore how to design and implement a frequency stack that supports pushing integers and popping the most frequent element. Learn strategies to track frequencies and resolve ties by recency, preparing you for common coding interview challenges involving custom data structures.

Statement

Design a stack-like data structure. You should be able to push elements to this data structure and pop elements with maximum frequency.

You’ll need to implement the FreqStack class that should consist of the following:

  • FreqStack: This is a class used to declare a frequency stack.

  • Push(value): This is used to push an integer data onto the top of the stack.

  • Pop(): This is used to remove and return the most frequent element in the stack.

Note: If there is a tie for the most frequent element, then the most recently pushed element is removed and returned.

Constraints:

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