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Grokking the Coding Interview Patterns in C#

Solution: Find Minimum in Rotated Sorted Array II

Understand how to apply a modified binary search algorithm to find the minimum element in a sorted array that has been rotated and may contain duplicates. This lesson helps you implement a step-by-step approach to handle edge cases and ensures efficient search with minimal operations.

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Statement

Imagine you have an array, nums, of length nn that was originally sorted in non-decreasing (ascending) order. This array has been rotated between 11 and nn times. For example, the sorted array [0,2,3,3,5,7,11][0,2,3,3,5,7,11] can become:

  • [5,7,11,0,2,3,3][5,7,11,0,2,3,3] ...