牛客笔试-变换次数

num = int(input("Enter a number: "))
count = 0
while num > 9:
    a = num % 10  
    while num // 10 > 0:
        num //= 10  
        a *= num % 10  
    count += 1
    num = a
print(count)

import java.util.Scanner;
public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int num = scanner.nextInt();
        int count = 0;
        while (num > 9) {
            int a = num % 10; 
            while (num / 10 > 0) {
                num /= 10;
                a *= num % 10; 
            }
            count++;
            num = a;
        }
        System.out.println(count);
        scanner.close();
    }
}