/*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.

Efficient liquid manipulation is a fundamental requirement in chemical engineering, biological research, clinical practice, and materials processing, where performance is largely determined by the ...

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.