Class Solution


  • public class Solution
    extends Object
    1796 - Second Largest Digit in a String.

    Easy

    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 <= 500
    • s consists of only lowercase English letters and/or digits.
    • Constructor Detail

      • Solution

        public Solution()
    • Method Detail

      • secondHighest

        public int secondHighest​(String s)