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81. Search in Rotated Sorted Array II

题目

Follow up for "Search in Rotated Sorted Array":

1. What if duplicates are allowed?
2. Would this affect the run-time complexity? How and why?

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).

Write a function to determine if a given target is in the array.

The array may contain duplicates.

解题思路

和33. Search in Rotated Sorted Array的解题思路一样，只是要先自己找到 k 的值。

见程序注释