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There is an integer array nums sorted in ascending order (with distinct values).
Prior to being passed to your function, nums is possibly rotated at an unknown pivot index k (1 <= k < nums.length) such that the resulting array is [nums[k], nums[k+1], ..., nums[n-1], nums[0], nums[1], ..., nums[k-1]] ( 0-indexed ). For example, [0,1,2,4,5,6,7] might be rotated at pivot index 3 and become [4,5,6,7,0,1,2].
Given the array numsafter the possible rotation and an integer target, return the index oftargetif it is innums, or-1if it is not innums.
You must write an algorithm with O(log n) runtime complexity.
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jimbinc commentedon Aug 9, 2020
https://leetcode.com/problems/search-in-rotated-sorted-array/discuss/781544/dfs