[LeetCode] 941. Valid Mountain Array 验证山形数组
Given an array `A` of integers, return `true` if and only if it is a *valid mountain array*. Recall that A is a mountain array if and only ...
原文：[LeetCode] 852. Peak Index in a Mountain Array 山形数组的顶峰坐标
Let s call an array A a mountain if the following properties hold: A.length gt There exists some lt i lt A.length such thatA lt A lt ... A i lt A i gt A i gt ... gt A A.length Given an array that is ...
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