Solution: Maximum Frequency Stack
Explore how to implement a frequency stack that supports pushing elements and popping the most frequent one efficiently. Understand the difference between a naive heap-based approach and an optimized solution using frequency counting and stacks. This lesson guides you through designing data structures to track element frequencies and retrieve the latest most frequent element in constant time, enhancing your problem-solving skills for coding interviews.
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:
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FreqStack: This is a class used to declare a frequency stack.
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Push(value): This is used to push an integer data onto the top of the stack.
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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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value -
At most, ...