# Find Minimum in Rotated Sorted Array II

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.

The array may contain duplicates.

**Example 1:**

```
Input:
 [1,3,5]

Output:
 1
```

**Example 2:**

```
Input:
 [2,2,2,0,1]

Output:
 0
```

**Note:**

* This is a follow up problem to [Find Minimum in Rotated Sorted Array](https://leetcode.com/problems/find-minimum-in-rotated-sorted-array/description/).
* Would allow duplicates affect the run-time complexity? How and why?

## Analysis

作为[Find Minimum in Rotated Sorted Array](https://leetcode.com/problems/find-minimum-in-rotated-sorted-array/description/) 的follow-up，差别在于是否有重复。跟[Search in Rotated Sorted Array II](/lintcode/binary-search/find-minimum-in-rotated-sorted-array-ii.md) 类似，处理`nums[mid] == nums[right]`的情况即可，移动搜索边界`right--`

## Solution

Template #3

```java
class Solution {
    public int findMin(int[] nums) {
        if (nums == null || nums.length == 0) {
            return 0;
        }
        int left = 0, right = nums.length - 1;
        while (left + 1 < right) {
            int mid = left + (right - left) / 2;
            if (nums[mid] > nums[right]) {
                left = mid;
            } else if (nums[mid] < nums[right]) {
                right = mid;
            } else {
                right--;
            }
        }
        return Math.min(nums[left], nums[right]);
    }
}
```


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://aaronice.gitbook.io/lintcode/binary-search/find-minimum-in-rotated-sorted-array-ii.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.