HDOJ 1042 N!(大数阶乘JAVA)

Problem Description
Given an integer N(0 ≤ N ≤ 10000), your task is to calculate N!

Input
One N in one line, process to the end of file.

Output
For each N, output N! in one line.

Sample Input
1
2
3

Sample Output
1
2
6

JAVA 大数轻松AC！

import java.math.BigDecimal;
import java.util.Scanner;

public class Main { public static void main(String[] args) { Scanner sc = new Scanner(System.in); while(sc.hasNext()){ BigDecimal n = sc.nextBigDecimal(); BigDecimal m=new BigDecimal(1); for(int i=2;i<=n.intValue();i++){ m = m.multiply(new BigDecimal(i)); } System.out.println(m.toPlainString()); } }

}

  

 

  
1
  
2
  
3
  
4
  
5
  
6
  
7
  
8
  
9
  
10
  
11
  
12
  
13
  
14
  
15
  
16
  
17
  
18
  
19
 

文章来源: chenhx.blog.csdn.net，作者：谙忆，版权归原作者所有，如需转载，请联系作者。

原文链接：chenhx.blog.csdn.net/article/details/50674406