1509. Minimum difference between largest and smallest in three moves

//1509. Minimum difference between largest and smallest in three moves

class Solution {
    public int minDifference(int[] nums) {
        if(nums.length <= 4) {
            return 0;
        }

        Arrays.sort(nums);
        int ans = nums[nums.length - 1] - nums[0];

        for(int i = 0; i <= 3; i++) {
            ans = Math.min(ans, nums[nums.length - (3 - i) - 1] - nums[i]);
        }

        return ans;
    }
}