Maximum Frequency Stack: coding question

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Design a stack-like data structure supporting push(val) and pop() where pop removes the most frequent element (breaking ties by recency, i.e., the one closest to the top). The core challenge is efficiently tracking element frequencies and their ordering so many operations (up to ~2×10^4) can be handled quickly.

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Leetcode 895. Maximum Frequency Stack
Reported Jul 23, 2025 · 1 source report
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Maximum Frequency Stack

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Maximum Frequency Stack

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