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.
You may assume no duplicate exists in the array.
代码:
class Solution { public: int findMin(vector<int> &num) { int i = 0, j = num.size() - 1; while(i < j) { if(num[i] < num[j]) { return num[i]; } int m = (i + j) / 2; if(num[m] >= num[i]) { i = m + 1; } else { j = m; } } return num[i]; } };
参考:Find Minimum in Rotated Sorted Array
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