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 month=in.nextInt();
        //题意进行数学解析就是斐波那锲,1,1,2,3,5,8...
        System.out.println(getRes(month));
    }
    public static int getRes(int n){
        if(n<=2)
            return 1;
        return (getRes(n-1)+getRes(n-2));
    }
}

自己拿出画图,每个月的+

1 1 2 3 5 8 ... 就是斐波那锲数列嘛,用递归