public class TripleUp {

    /********************************
     * Return true if the array contains, somewhere, three increasing
     * adjacent numbers like .... 4, 5, 6, ... or 23, 24, 25.
     *
     * See the verify lines below for examples of input
     * and expected output.
     *
     * Run this class, If you see errors, it is because the tests below
     * did not pass. Once the tests do pass, you will see a log of `Success!`
     ********************************/
    public static void main(String [] args) {
        try {
            // These are the tests that will run against your code
            // vars = array of ints, expected answer
            verify(new int[]{1, 4, 5, 6, 2}, true);
            verify(new int[]{1, 2, 4, 5, 7, 6, 5, 6, 7, 6}, true);
            verify(new int[]{1, 2, 4, 5, 7, 6, 5, 7, 7, 6}, false);
            verify(new int[]{1, 2}, false);
            verify(new int[]{10, 9, 8, -100, -99, -98, 100}, true);
            verify(new int[]{10, 9, 8, -100, -99, 99, 100}, false);
            System.out.println("Success!");
        } catch (Error err) {
            System.out.println(err.getMessage());
        }
    }

    /********************************
     * YOUR CODE BELOW HERE
     ********************************/
    private static boolean triple(int[] nums) {
        if (nums.length >= 3){
            if (nums[0] == (nums[1] - 1) && nums[0] == (nums[2] - 2)) {
                return true;
            } else if (nums.length >=4) {
                int[] newArray = new int[nums.length - 1];
                System.arraycopy(nums, 1, newArray, 0, newArray.length);
                return triple(newArray);
            } else {
                return false;
            }
        } else {
            return false;
        }
    }

    /********************************
     * YOUR CODE ABOVE HERE
     ********************************/
    private static void verify(int[] nums, boolean expected) {
        boolean answer = triple(nums);
        if (answer != expected) {
            throw new Error("wrong answer, expected " + answer + " to equal " + expected);
        }
    }
}