#include <bits/stdc++.h>
#include <ranges>
using namespace std;
namespace ra = std::ranges;
auto smallestRangeI(vector<int>& nums, int k) -> int
{
	auto const [mn, mx] = ra::minmax(nums);
	return max(0, mx - mn - 2 * k);
}


auto main() -> int
{
	auto nums = vector{ 1 };
	auto k = 0;
	cout << smallestRangeI(nums, k) << endl;
	nums = vector{ 0, 10 };
	k = 2;
	cout << smallestRangeI(nums, k) << endl;
	nums = vector{ 1, 3, 6 };
	k = 3;
	cout << smallestRangeI(nums, k) << endl;
	nums = vector{3,1,10};
	k = 4;
	cout << smallestRangeI(nums, k) << endl;

	return 0;
}