programmers_2 x n 타일링_java

https://school.programmers.co.kr/learn/courses/30/lessons/12900

프로그래머스

class Solution {
    public int solution(int n) {
        int answer = 0;
        
        int dp[] = new int[n+1];
        dp[0] = 0;
        dp[1] = 1;
        dp[2] = 2;
        
        for(int i = 3; i<=n; i++){
            dp[i] = (dp[i-1] + dp[i-2]) % 1000000007;
        }
        answer = dp[n];
        
        return answer;
    }
}