标签：java   hduj   

Hat‘s Fibonacci

100

4203968145672990846840663646


Note:
No generated Fibonacci number in excess of 2005 digits will be in the test data, ie. F(20) = 66526 has 5 digits.

import java.util.Scanner;
import java.math.BigInteger;


public class yhrtr {

	public static void main(String[] args) {
		Scanner cin = new Scanner (System.in);
		BigInteger s[] = new BigInteger[10005];
		s[1] = BigInteger.ONE;
		s[2] = BigInteger.ONE;
		s[3] = BigInteger.ONE;
		s[4] = BigInteger.ONE;
		for(int i=5;i<=10000;i++)
			s[i] = s[i-1].add(s[i-2].add(s[i-3].add(s[i-4])));
	
		while(cin.hasNext())
		{
			int m = cin.nextInt();
			System.out.println(s[m]);
		}
	}
}

HDUJ 1250 Hat's Fibonacci,布布扣,bubuko.com

HDUJ 1250 Hat's Fibonacci

标签：java   hduj   

原文地址：http://blog.csdn.net/hyccfy/article/details/38231371