10872 팩토리얼(재귀)

import java.util.Scanner;

public class Main {

	
	public static void main(String[] args){

		Scanner sc = new Scanner(System.in);
		int N = sc.nextInt();
		System.out.println(factorial(N));
	}
	
	
	public static int factorial(int A) {
	if(A<=1) return 1;
	return A*factorial(A-1);
	}
}

 

 

참고: https://st-lab.tistory.com/93?category=852877