题解 | #统计每个月兔子的总数#

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int n = in.nextInt();
        System.out.println(getNum(n));
    }

    private static int getNum(int n) {
        if (n == 1) {
            return 1;
        } else if (n == 2) {
            return 1;
        } else {
            return getNum(n - 1) + getNum(n - 2);
        }
    }
}

解题思路:

1, 按照斐波那契数列的思路进行求解即可