2025-08-15 12:44:11 +0000 UTC

class Solution:
    def secondHighest(self, s: str) -> int:
        num1, num2 = -1, -1
        for char in s:
            if not char.isdigit():
                continue
            num = int(char)
            if num > num2:
                num1, num2 = num2, num
            elif num != num2 and num > num1:
                num1 = num
        return num1