题解 | #统计每个月兔子的总数#
统计每个月兔子的总数
https://www.nowcoder.com/practice/1221ec77125d4370833fd3ad5ba72395
斐波那契数列，采用动态规划，兔子从第三个月开始，数量等于前两个月的数量之和，an = an-2+ an-1，解法如下：
import java.io.IOException;
import java.util.*;
public class Main {
public static void main(String[] args) throws IOException {
Scanner sc = new Scanner(System.in);
while(sc.hasNext()){
int month = sc.nextInt();
int[] arr = new int[month];
arr[0] = 1;
arr[1] = 1;
if(month<3){
System.out.println(1);
continue;
}
for(int i=2;i<month;i++){
arr[i] = arr[i-2] + arr[i-1];
}
System.out.println(arr[month-1]);
}
}
}
