Second Largest Digit in a String
Given an alphanumeric string s, return the second largest numerical digit that appears in s, or -1 if it does not exist.
An alphanumeric string is a string consisting of lowercase English letters and digits.
Example 1
Input
s = "dfa12321afd"Output
2The digits that appear in s are [1, 2, 3], and the second largest digit is 2.
Example 2
Input
s = "abc1111"Output
-1The digits that appear in s are [1], so there is no second largest digit.
Constraints
- 1 <= s.length <= 500
- s consists of only lowercase English letters and digits.