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].

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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. answer = [7,1,3,9].

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Constraints:

• 1 <= nums.length <= 1000

• 1 <= nums[i] <= 105

1：寫一個(gè)函數(shù)返回?cái)?shù)字的拆分信息；

2：遍歷數(shù)組，將拆分信息放到list里面；

3：把list裝到數(shù)組里面即可；

Runtime:?4 ms, faster than?86.11%?of?Java?online submissions for?Separate the Digits in an Array.

Memory Usage:?42.5 MB, less than?96.33%?of?Java?online submissions for?Separate the Digits in an Array.

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