[백준] 11727번 2Xn 타일링 2

https://www.acmicpc.net/problem/11727

11727번: 2×n 타일링 2

 

 

import java.util.*;
import java.io.*;

public class Main {

    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner(System.in);
        int n  = sc.nextInt();

        // n = ( n - 1 ) + ( n - 2 ) * 2 
        int dp[] = new int[1000 + 1];
        dp[1] = 1;
        dp[2] = 3;
        for(int i = 3; i <= n ; i++) {
            dp[i] = (dp[i-1]  +  dp[i-2] * 2 ) % 10007;
        }

        System.out.println(dp[n]);
        }
}