题解 | #统计每个月兔子的总数#

import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner fzhinput = new Scanner(System.in);
        int monthnum = fzhinput.nextInt();
        int rnum[]=new int[monthnum+1];
        for(int month=0;month<=monthnum;month++){
            if(month<=2){
                rnum[month] = 1;
            }
            else if(month>=3){
                rnum[month]= rnum[month-1]+rnum[month-2];
            }
        }
        System.out.println(rnum[monthnum]);
    }
}
// {1,1,2,3,5,8,13,21,34,55}