Description:

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.

Code:

bool flag = true;int findMin(vector<int>& nums) {if (nums.size()==0){flag = false;return 0;}int left = 0;int right = nums.size()-1;while (left < right){int mid = (left + right)/2;if (nums[mid] < nums[right])right = mid;else if (nums[mid] > nums[right])left = mid+1;else{//此時不能判最小值在左邊還右邊，遍歷判斷int result = nums[left];for (int i = left+1; i <= right; i++){if ( nums[i] < result)result = nums[i];}return result; }}return nums[left];}

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轉載于:https://www.cnblogs.com/happygirl-zjj/p/4592202.html

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