HDOJ-1042 大数阶乘[JAVA大数]

N!

Time Limit: 10000/5000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)
Total Submission(s): 32942    Accepted Submission(s): 9106

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

 

 

Author

JGShining（极光炫影）

 

 

 

code:

import java.util.*;
import java.math.*;
public class Main
{
    public static void main(String []args)
    {
        int i,n;
        BigInteger result;        
        Scanner cin=new Scanner(System.in);
        while(cin.hasNext())
        {
            n=cin.nextInt();
            result=BigInteger.valueOf(1);
            //BigInteger result=new BigInteger("1");
            for(i=2;i<=n;i++)
                result=result.multiply(BigInteger.valueOf(i));
             System.out.println(result);
         }
    }
}