题解 | #统计每个月兔子的总数#

import java.util.Scanner;

// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int month = in.nextInt();
        int[] sum = new int[month+1];
        sum[1] = 1;
        sum[2] = 1;
        for(int i=3;i<=month;i++){
            sum[i] = sum[i-1] + sum[i-2];
        }
        System.out.print(sum[month]);
    }
}