Given a sorted array, the task is to find the floor and ceil of given numbers using STL.
Examples:
Input: arr[] = {1, 2, 4, 7, 11, 12, 23, 30, 32},
values[] = { 1, 3, 5, 7, 20, 24 }
Output: Floor Values: 1 2 4 7 12 23
Ceil values: 1 4 7 7 23 30
Floor and Ceiling in a sorted array: https://www.geeksforgeeks.org/finding-floor-and-ceil-of-a-sorted-array-using-stl/