package demo01;
import java.math.BigInteger;
import java.util.ArrayList;
public class Test05 {
public static void main(String[] args) {
ArrayList<BigInteger> arr = new ArrayList<BigInteger>();
BigInteger b1 = new BigInteger("1");//初始值為1對
arr.add(b1);
BigInteger b2 = new BigInteger("1");//第1個月還是1對
arr.add(b2);
int n = 10000;//第N個月
for (int i = 2; i <= n; i++) {
BigInteger a = arr.get(i-1);
BigInteger b = arr.get(i-2);
BigInteger c = a.add(b);//注意這裡的.add是BigInteger的方法,結果相當于a+b
arr.add(c);//這裡是ArrayList的.add方法,表示将c加入集合
}
System.out.println(arr.get(n));
}
}
轉自:https://blog.csdn.net/javae100/article/details/79105238