NeetCode #366LC-716HardStackNC Algo100
← Back to All Problems#366 · #716 · Max Stack(最大栈)
📌 Problem Statement & Constraints
Design a max stack supporting
push(x), pop(), top(), peekMax() and popMax(). popMax() removes and returns the maximum element; if there are several, remove the one closest to the top. Constraints: -10^7 <= x <= 10^7; at most 10^4 calls.🔒
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