[백준] 1904. 01타일(실버3)

백준(실버3) - 1904. 01타일(실버3)

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풀이

배열의 크기를 동적으로 설정했을 경우에는 n이 1인 경우를 생각해줘야한다.

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Main {
	
	public static void main(String[] args) throws NumberFormatException, IOException {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		int n = Integer.parseInt(br.readLine());
		
		long[] dp = new long[n];
		
		
		dp[0] = 1;
		if(n>1)
			dp[1] = 2;
		
		for(int i=2; i<n; i++) {
			dp[i] = (dp[i-1]+dp[i-2])%15746;
		}
		System.out.println(dp[n-1]);
		
	}

}

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Main {
	
	public static void main(String[] args) throws NumberFormatException, IOException {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		int n = Integer.parseInt(br.readLine());
		
		long[] dp = new long[1000001];
		
		dp[0] = 1;
		dp[1] = 2;
		
		for(int i=2; i<n; i++) {
			dp[i] = (dp[i-1]+dp[i-2])%15746;
		}
		System.out.println(dp[n-1]);
		
	}

}