[자바] 백준 2748번: 피보나치 수2

https://www.acmicpc.net/problem/2748

2748번: 피보나치 수 2

import java.util.Scanner;

public class P2748 {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		long[] arr = new long[90];

		arr[0] = 0;
		arr[1] = 1;
		arr[2] = 1;
		for (int i = 3; i < n + 1; i++) {
			arr[i] = arr[i - 1] + arr[i - 2];
		}

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

}