1954 - Minimum Garden Perimeter to Collect Enough Apples.

Medium

In a garden represented as an infinite 2D grid, there is an apple tree planted at every integer coordinate. The apple tree planted at an integer coordinate (i, j) has |i| + |j| apples growing on it.

You will buy an axis-aligned square plot of land that is centered at (0, 0).

Given an integer neededApples, return the minimum perimeter of a plot such that at least neededApples apples are inside or on the perimeter of that plot.

The value of |x| is defined as:

• x if x >= 0

• -x if x < 0

Example 1:

Input: neededApples = 1

Output: 8

Explanation: A square plot of side length 1 does not contain any apples. However, a square plot of side length 2 has 12 apples inside (as depicted in the image above). The perimeter is 2 \* 4 = 8.

Example 2:

Input: neededApples = 13

Output: 16

Example 3:

Input: neededApples = 1000000000

Output: 5040

Constraints:

• <code>1 <= neededApples <= 10¹⁵</code>