/*Given an array of integers, find all the leaders in the array. An element is called a leader if it is greater than all elements to its right. The last element is always a leader.

Abstract: This study introduces a cost-effective and spectrally efficient approach to deploying cylindrical antenna arrays in cellular networks using non-integer array configurations. Traditional ...

Given a sorted array and a target value, return the index if the target is found. If not, return the index where it would be if it were inserted in order. You may assume no duplicates in the array.