Solution: Maximum Frequency Stack
Understand how to design and implement the FreqStack data structure that pushes elements and pops the most frequent ones efficiently. Learn the naive and optimized approaches using frequency counting and hash maps to achieve constant time complexity for push and pop operations while managing element frequencies effectively.
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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Init(): This is a constructor 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, ...