LeetCode之Find Minimum in Rotated Sorted Array II
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/*二分查找。*/ class Solution { public: int findMin(vector<int>& nums) { int l = 0, r = nums.size()-1; while(l < r){ while(l < r && nums[l+1] == nums[l]) ++l; while(l < r && nums[r] == nums[r-1]) --r; if(l == r) return nums[l]; int mid = (l + r) / 2; if(nums[mid] > nums[mid+1]) return nums[mid+1]; if(nums[mid] < nums[r]) r = mid; else l = mid; } return nums[l]; } };
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