Array Manipulation

July 22, 2016

Our task today comes from Geeks for Geeks:

Given an array of positive integers, replace every element with the least greater element to its right. If there is no greater element to its right, replace it with -1. For instance, given the array [8, 58, 71, 18, 31, 32, 63, 92, 43, 3, 91, 93, 25, 80, 28], the desired output is [18, 63, 80, 25, 32, 43, 80, 93, 80, 25, 93, -1, 28, -1, -1].

Your task is to write the program that manipulates an array as described above. 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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