[백준] 1110번 : 더하기 사이클 - Java(자바)

https://www.acmicpc.net/problem/1110

import java.util.Scanner;
public class Main {
    static int change(int n){
        int a=n/10;
        int b=n%10;
        int c=a+b;
        return b*10+c%10;
    }
    
    public static void main(String args[]) {
      Scanner s=new Scanner(System.in);
      int n=s.nextInt();
      int t=1;
      int num=change(n);
      if(n==0) System.out.print(1);
      else{
          while(true){
          num=change(num);
          t++;
          if(num==n){
              System.out.print(t);
              break;
          }
      }
      }
    }
}