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[leetcode] Find Minimum in Rotated Sorted Array @ Python

source: https://oj.leetcode.com/problems/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.

 

Solution: Binary Search

Complexity: O(logN)

 

class Solution:    # @param num, a list of integer    # @return an integer    def findMin(self, num):        min = num[0]        start, end = 0, len(num) - 1        while start <= end:            mid = (start + end)/2            if num[mid] >= min:                start = mid + 1            else:                min = num[mid]                end = mid        return min

 

[leetcode] Find Minimum in Rotated Sorted Array @ Python