SmallestRangeI.java

import java.util.Arrays;

public class SmallestRangeI {
    public int smallestRangeI(int[] nums, int k) {
        return Math.max(
                0,
                Arrays.stream(nums).max().getAsInt() - Arrays.stream(nums).min().getAsInt() - 2 * k
        );
    }
}