Given an array nums of integers, return how many of them contain an even number of digits. 정수가 담겨있는 배열이 주어지고, 짝수 자릿수가 몇 개인지 리턴하세요. Example 1: Input: nums = [12,345,2,6,7896] Output: 2 Explanation: 12 contains 2 digits (even number of digits). 345 contains 3 digits (odd number of digits). 2 contains 1 digit (odd number of digits). 6 contains 1 digit (odd number of digits). 7896 contains 4 digits ..
