2553. Separate the Digits in an Array
Easy
260
7

Given an array of positive integers `nums`, return an array `answer` that consists of the digits of each integer in `nums` after separating them in the same order they appear in `nums`.

To separate the digits of an integer is to get all the digits it has in the same order.

• For example, for the integer `10921`, the separation of its digits is `[1,0,9,2,1]`.

Example 1:

```Input: nums = [13,25,83,77]
Output: [1,3,2,5,8,3,7,7]
Explanation:
- The separation of 13 is [1,3].
- The separation of 25 is [2,5].
- The separation of 83 is [8,3].
- The separation of 77 is [7,7].
answer = [1,3,2,5,8,3,7,7]. Note that answer contains the separations in the same order.
```

Example 2:

```Input: nums = [7,1,3,9]
Output: [7,1,3,9]
Explanation: The separation of each integer in nums is itself.
```

Constraints:

• `1 <= nums.length <= 1000`
• `1 <= nums[i] <= 105`
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