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Binary Search: iOS Interview Question

Binary Search interview question with a clear example answer for iOS engineers. Practice with AceMobileInterview.

This is a common iOS interview topic: Binary Search.

Below is a concise answer you can adapt in a real interview, then go deeper in the full AceMobileInterview track.

  1. 1.Implement binary search on a sorted array. Discuss off-by-one pitfalls.

    Lo/hi mid; careful mid overflow (lo+(hi-lo)/2). Return index or insertion point. O(log n). Foundation for many Medium problems.

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