[Leetcode] 3079. Find the Sum of Encrypted Integers

https://leetcode.com/problems/find-the-sum-of-encrypted-integers/

class Solution:
    def sumOfEncryptedInt(self, nums: List[int]) -> int:
        encrypted_nums = []

        for n in nums:
            ndigit = list(map(int, str(n)))
            if len(ndigit) > 1:
                max = -1
                for i in ndigit:
                    if max < i:
                        max = i
                encrypted = int(str(max) * len(ndigit))
                encrypted_nums.append(encrypted)
            else:
                encrypted_nums.append(n)
        
        sum = 0
        for n in encrypted_nums:
            sum += n
        
        return sum