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  1. public class Main{
  2. 	public static long factorial(int a){
  3. 		if (a == 0)
  4.         	return 1;
  5.         else
  6.         	return a*factorial(a - 1);
  7. 		}
  8.  
  9. 	public static void main (String[] args) throws java.lang.Exception 	{
  10. 		java.util.Scanner i = new java.util.Scanner(System.in);
  11. 		int a;
  12. 		int n = i.nextInt();
  13.         System.out.print(factorial(n));
  14. 	}
  15. }
  16.  
Success #stdin #stdout 0.14s 35616KB
comments (?)
stdin 
20
stdout 
2432902008176640000
https://ideone.com/PcGNNj
language:
Java (HotSpot 12)
created:
4 years ago
visibility:
public

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