[leetcode][search] Find Minimum in Rotated Sorted Array II

题目：

Follow up for "Find Minimum in Rotated Sorted Array":

What if duplicates are allowed?
Would this affect the run-time complexity? How and why?

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.

The array may contain duplicates.

class Solution {
public:
int findMin(vector<int>& nums) {
if(nums.empty()) return 0;
return findMinRecersively(nums, 0, nums.size()-1);
}
private:
int findMinRecersively(vector<int>& nums, int start, int end){
if(start == end) return nums[start];
if(start + 1 == end) return min(nums[start], nums[end]);
int mid = (start + end) >> 1;
if(nums[mid] > nums[mid+1]) return nums[mid+1];
return min(findMinRecersively(nums, mid+1, end), findMinRecersively(nums, start, mid));
}
};

似乎没有影响