Find Numbers with Even Number of Digits

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 (even number of digits). Therefore only 12 and 7896 contain an even number of digits.

Example 2

Input: nums = [555,901,482,1771]

Output: 1

Explanation: Only 1771 contains an even number of digits.