N!
Time Limit: 10000/5000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)
Total Submission(s): 50539 Accepted Submission(s): 14212
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）
import java.math.BigInteger;
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner input=new Scanner(System.in);
while(input.hasNext())
{
int n=input.nextInt();
BigInteger m=BigInteger.ONE;
for (int i=1;i<=n;i++) {
m=m.multiply(BigInteger.valueOf((long)i));
}
System.out.println(m);
}
}
}
//int型数字i转换成BigInteger方法：BigInteger.valueOf((long)i)
