""" 153. Find Minimum in Rotated Sorted Array Difficulty: Medium https://leetcode.com/problems/find-minimum-in-rotated-sorted-array/ ────────────────────────────────────────────────── Suppose an array of length n sorted in ascending order is rotated between 1 and n times. For example, the array nums = [0,1,2,4,5,6,7] might become: • [4,5,6,7,0,1,2] if it was rotated 4 times. • [0,1,2,4,5,6,7] if it was rotated 7 times. Notice that rotating an array [a[0], a[1], a[2], ..., a[n-1]] 1 time results in the array [a[n-1], a[0], a[1], a[2], ..., a[n-2]]. Given the sorted rotated array nums of unique elements, return the minimum element of this array. You must write an algorithm that runs in O(log n) time. Example 1: Input: nums = [3,4,5,1,2] Output: 1 Explanation: The original array was [1,2,3,4,5] rotated 3 times. Example 2: Input: nums = [4,5,6,7,0,1,2] Output: 0 Explanation: The original array was [0,1,2,4,5,6,7] and it was rotated 4 times. Example 3: Input: nums = [11,13,15,17] Output: 11 Explanation: The original array was [11,13,15,17] and it was rotated 4 times. Constraints: • n == nums.length • 1 <= n <= 5000 • -5000 <= nums[i] <= 5000 • All the integers of nums are unique. • nums is sorted and rotated between 1 and n times. """ class Solution: def findMin(self, nums: List[int]) -> int: l, r = 0, len(nums) - 1 lowest_index = -1 while l <= r: m = (l + r) // 2 if nums[m] <= nums[-1]: lowest_index = m r = m - 1 else: l = m + 1 return nums[lowest_index]