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 ...
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 ...
2019-03-13 23:57 0 1561 推薦指數:
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 ...
(This problem is an interactive problem.) You may recall that an array A is a mountain array if and only if: A.length >= 3 There exists ...
Let's call any (contiguous) subarray B (of A) a mountain if the following properties hold: B.length >= 3 There exists some 0 < i < ...
You are given a circular array nums of positive and negative integers. If a number k at an index is positive, then move forward k steps. ...
A peak element is an element that is greater than its neighbors. Given an input array nums, where nums[i] ≠ nums[i+1], find a peak element ...
Given a sorted positive integer array nums and an integer n, add/patch elements to the array such that any number in range [1, n] inclusive can ...
Given a non-empty array of non-negative integers nums, the degree of this array is defined as the maximum frequency of any one of its elements. ...
,這道題實際上這道題也是用類似的思路,我們遍歷數組每個位置,每次都隨機生成一個坐標位置,然后交換當前遍 ...