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迭代相加即可
AC代码:
1 import java.math.BigInteger; 2 import java.util.Scanner; 3 4 public class Main { 5 6 public static void main(String[] args) { 7 8 Scanner sc=new Scanner(System.in); 9 10 while(sc.hasNextBigInteger()){ 11 BigInteger a=sc.nextBigInteger(); 12 BigInteger b=sc.nextBigInteger(); 13 BigInteger c=sc.nextBigInteger(); 14 for(int i=3;i<=99;i++){ 15 BigInteger t=c.add(b).add(a); 16 a=b; 17 b=c; 18 c=t; 19 } 20 21 System.out.println(c.toString()); 22 } 23 } 24 25 }
题目来源: http://acm.nyist.net/JudgeOnline/problem.php?pid=114
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原文地址:http://www.cnblogs.com/cc11001100/p/5894567.html