Floor And Ceiling In An Array

November 21, 2017

We looked at variants of binary search in two recent exercises. Today we look at a third variant.

Your task is to write a variant of binary search in a sorted array without duplicates that returns the index of the two elements immediately below and above a target; if the target is in the array, both return values should point to the target value. When you are finished, you are welcome to read or run a suggested solution, or to post your own solution or discuss the exercise in the comments below.

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