백준 소스코드 [C++] 11727 2xN 타일링 2

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

11727번: 2×n 타일링 2

백준 소스코드 [C++] 11727 2xN 타일링 2

#include <iostream>
#include <utility>
#include <vector>
#include <algorithm>
using namespace std;
int memo[1001];
int tiling(int n) {
	if (n == 1) return 1;
	else if (n == 2) return 3;
	if (memo[n] != 0) return memo[n];
	else return memo[n] = (tiling(n - 1) + 2*tiling(n - 2))%10007;
}

int main() {
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	int n;
	cin >> n;
	cout << tiling(n);
	return 0;
}