How to Solve Maximum Frequency Stack Problem
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Maximum Frequency Stack
Design a stack-like data structure to push elements to the stack and pop the most frequent element from the stack. Implement the FreqStack class: FreqStack() constructs an empty frequency stack. void ...
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Understanding the Maximum Frequency Stack Problem
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Problem Statement
Design a stack-like data structure to push elements to the stack and pop the most frequent element from the stack. Implement the FreqStack class: FreqStack() constructs an empty frequency stack. void push(int val) pushes an integer val onto the top of the stack. int pop() removes and returns the most frequent element in the stack. If there is a tie for the most frequent element, the element closest to the stack's top is removed and returned.
Maximum Frequency Stack
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Examples
Example inputExample outputConstraints
0 <= val <= 109At most 2 * 104 calls will be made to push and pop.It is guaranteed that there will be at least one element in the stack before calling pop.How Interview Coder Helps with Leetcode Problems
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