[백준] JAVA 10872: 팩토리얼

https://www.acmicpc.net/problem/10872

10872번: 팩토리얼

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Solution:

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Main {
	public static void main(String[] args) throws IOException {	
		
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		int N = Integer.parseInt(br.readLine());
		
		System.out.print(factorial(N));
		br.close();
	}
	
	public static int factorial(int N) {
		if(N<=0) {
			return 1;
		}
		else if(N==1) {
			return 1;
		}
		else {
			return N*factorial(N-1);
		}
	}
}

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