1796. Second Largest Digit in a String
Easy53.8% acceptance97,255 / 180,672 submissions
Asked by 3 companies
Topics
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: 2 Explanation: The digits that appear in s are [1, 2, 3]. The second largest digit is 2.
Example 2:
Input: s = "abc1111" Output: -1 Explanation: The digits that appear in s are [1]. There is no second largest digit.
Constraints:
1 <= s.length <= 500sconsists of only lowercase English letters and digits.
Hints
Hint 1
First of all, get the distinct characters since we are only interested in those
Hint 2
Let's note that there might not be any digits.