class Solution {
    public List<Boolean> checkArithmeticSubarrays(int[] nums, int[] l, int[] r) {
        List<Boolean> list = new ArrayList<>();
        
        for(int i=0; i<l.length; i++){
            int temp[] = new int[r[i]-l[i]+1];
            for(int j=l[i]; j<=r[i]; j++){
                temp[j-l[i]]=nums[j];
            }
            Arrays.sort(temp);
            list.add(check(temp));
        }
        
        return list;
    }
    public boolean check(int[] arr){
        for(int i=1; i<arr.length-1; i++){
            if(arr[i]*2!=arr[i-1]+arr[i+1])
                return false;
        }
        
        return true;
    }
}