[JAVA/백준] 재귀: 팩토리얼

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
import java.util.Scanner;

/**
 * 
 * @author HEESOO
 *
 */
public class Main {
	public static void main(String[] args) {
		Scanner input=new Scanner(System.in);
		int n=input.nextInt();
		int answer=n;
		if(n==0) answer=1;
		for(int i=n-1;i>0;i--){
			answer*=i;
		}
		System.out.println(answer);
	}
}