2553. Separate the Digits in an Array Difficulty: Easy Topics: Mid Level , Array , Simulation , Biweekly Contest 97 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. answer = [7,1,3,9].…