public class Solution
extends Object
989 - Add to Array-Form of Integer\.
Easy
The **array-form** of an integer `num` is an array representing its digits in left to right order.
* For example, for `num = 1321`, the array form is `[1,3,2,1]`.
Given `num`, the **array-form** of an integer, and an integer `k`, return _the **array-form** of the integer_ `num + k`.
**Example 1:**
**Input:** num = [1,2,0,0], k = 34
**Output:** [1,2,3,4]
**Explanation:** 1200 + 34 = 1234
**Example 2:**
**Input:** num = [2,7,4], k = 181
**Output:** [4,5,5]
**Explanation:** 274 + 181 = 455
**Example 3:**
**Input:** num = [2,1,5], k = 806
**Output:** [1,0,2,1]
**Explanation:** 215 + 806 = 1021
**Constraints:**
* 1 <= num.length <= 104
* `0 <= num[i] <= 9`
* `num` does not contain any leading zeros except for the zero itself.
* 1 <= k <= 104