Java for LeetCode 154 Find Minimum in Rotated Sorted Array II

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.

解题思路：

参考Java for LeetCode 081 Search in Rotated Sorted Array II JAVA实现如下：

public int findMin(int[] nums) {
int left = 0, right = nums.length - 1, res = nums[0];
while (left <= right) {
res =  Math.min(nums[left],Math.min(res, nums[(right + left) / 2]));
if (nums[(right + left) / 2] < nums[left])
right = (right + left) / 2 - 1;
else if (nums[(right + left) / 2] > nums[left])
left = (right + left) / 2 + 1;
else
left++;
}
return res;
}