Suppose a sorted array is rotated at some pivot unknown to you beforehand. (i.e., 0 1 2 4 5 6 7 might become 4 5 6 7 0 1 2). Find the minimum element. You may assume no duplicate exists in the array. 不知道这道题为什么难度是Medium,感觉蛮简单的. 仅仅须要找到第一个大于它后面的数,它后面的数就…

Suppose an array sorted in ascending order is rotated at some pivot unknown to you beforehand. (i.e.,  [0,1,2,4,5,6,7] might become  [4,5,6,7,0,1,2]). Find the minimum element. You may assume no duplicate exists in the array. Example 1: Input: [3,4,5…

class Solution: def findMin(self, nums: 'List[int]') -> int: l = 0 h = len(nums)-1 while l < h: m = l + (h-l) // 2 if nums[m] > nums[h]: l = m + 1 else: h = m return nums[l] 40ms,13.1mb 二分查找的变种,感觉怪怪的.相较而言,还是下面的这种更容易理解吧: class Solution: def findMi…

153.寻找旋转排序数组中的最小值 描述 假设按照升序排序的数组在预先未知的某个点上进行了旋转. ( 例如,数组 [0,1,2,4,5,6,7] 可能变为 [4,5,6,7,0,1,2] ). 请找出其中最小的元素. 你可以假设数组中不存在重复元素. 示例 示例 1: 输入: [3,4,5,1,2] 输出: 1 例 2: 输入: [4,5,6,7,0,1,2] 输出: 0 思路 这题要求在一个轮转了的排序数组里面找到最小值, 我们可以用二分法来做. 首先我们需要知道, 对于一个区间 A, 如果…

假设按照升序排序的数组在预先未知的某个点上进行了旋转. ( 例如,数组 [0,1,2,4,5,6,7] 可能变为 [4,5,6,7,0,1,2] ). 请找出其中最小的元素. 你可以假设数组中不存在重复元素. 示例 1: 输入: [3,4,5,1,2] 输出: 1 示例 2: 输入: [4,5,6,7,0,1,2] 输出: 0 最好用high值来判断 class Solution { public: int findMin(vector<int>& nums) { int len =…

二分法相关 153. Find Minimum in Rotated Sorted Array Suppose a sorted array is rotated at some pivot unknown to you beforehand. (i.e., 0 1 2 4 5 6 7 might become 4 5 6 7 0 1 2). Find the minimum element. You may assume no duplicate exists in the array. (M…