[백준] 1463번 : 1로 만들기 - C#

https://www.acmicpc.net/problem/1463

using System;

class Program
{
    static void Main() {
        string s=Console.ReadLine();
        int n=int.Parse(s);
        int[] arr=new int[n+1];
        for(int i=2;i<=n;i++){
            arr[i]=arr[i-1]+1;
            if(i%6==0) arr[i]=Math.Min(Math.Min(arr[i/3]+1,arr[i/2]+1),arr[i]);
            else if(i%3==0) arr[i]=Math.Min(arr[i/3]+1,arr[i]);
            else if(i%2==0) arr[i]=Math.Min(arr[i/2]+1,arr[i]);
        }
        Console.Write(arr[n]);
    }
}