Find Floor of an Element in a Sorted Array

Easy

Problem Statement

Given a sorted array `nums` and a value `x`, find the floor of `x` in the array. The floor is the greatest element in the array that is less than or equal to `x`. If no such element exists, return -1.

Examples

1Example 1

Input:

{
  "nums": [
    1,
    2,
    8,
    10,
    10,
    12,
    19
  ],
  "x": 5
}

Output:

2

2Example 2

Input:

{
  "nums": [
    1,
    2,
    8,
    10,
    10,
    12,
    19
  ],
  "x": 20
}

Output:

19

3Example 3

Input:

{
  "nums": [
    1,
    2,
    8,
    10,
    10,
    12,
    19
  ],
  "x": 0
}

Output:

-1