从数组第一个元素开始遍历,做递增判断,直到不满足条件为止,经历递增的判断后,需要判断索引是否位于中间,即不能是0或者是最后一个,再继续递减的判断,判断结束后,判断索引是否等于最后一位即可。 publicbooleanvalidMountainArray(int[] A){if(A ==null|| A.length <3) {returnfalse; }intindex=0, n = A.le...
bool validMountainArray(int* A, int ASize) { int i = 0; // 递增扫描 while (i + 1 < ASize && A[i] < A[i + 1]) { i++; } // 最高点不能是数组的第一个位置或最后一个位置 if (i == 0 || i == ASize - 1) { return false; } // 递减扫描 while (i + 1 < ASize...
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 if: AI检测代码解析 A.length >= 3 There exists some i with 0 < i < A.length - 1 such that: A[0] < A[1] < ... A[i-1] < A[i] A...
参考资料: https://leetcode.com/problems/valid-mountain-array/ https://leetcode.com/problems/valid-mountain-array/discuss/194941/C%2B%2B-Track-Peak https://leetcode.com/problems/valid-mountain-array/discuss/194900/C%2B%2BJavaPython-Climb-Mountain [LeetCode All in One 题目讲解汇总(持续更新中....
Can you solve this real interview question? Valid Mountain Array - Given an array of integers arr, return true if and only if it is a valid mountain array. Recall that arr is a mountain array if and only if: * arr.length >= 3 * There exists some i wi
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 if: A.length >= 3 There exists some i with 0 < i < A.length - 1 such that: A[0] < A[1] < … A[i-1] < A[i] ...
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 if: A.length >= 3 There exists some?i?with?0 < i?< A.length - 1?such that: ...
题目链接 https://leetcode-cn.com/problems/valid-mountain-array/思路判断是山峰,主要就是要严格的保存左边到中间,和右边到中间是递增的。 这样可以使用两个指针,left和right,让其按照如下规则移动,如图: …
Section 2: Google Array Question: Valid mountain array (Easy) Lecture 7 Introduction to the problem Lecture 8 How to think about this problem Lecture 9 Pseudocode Walkthrough Lecture 10 Implementing the code Section 3: Google Array Question: Boats to save people (Medium) Lecture 11 Problem Intro...
You may only access the array using a MountainArray interface:MountainArray.get(k) returns the element of the array at index k (0-indexed). MountainArray.length() returns the length of the array. Submissions making more than 100 calls to MountainArray.get will be judged Wrong Answer. Also...