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  1. class Main{
  2. 	public static void main (String[] args) throws java.lang.Exception 	{
  3. 		java.util.Scanner i = new java.util.Scanner(System.in);
  4. 		int n = i.nextInt();
  5. 		long array[] = new long[61];
  6. 		array[0] = 1;
  7.     	array[1] = 1;
  8.     	array[2] = 2;
  9.     	for(int k = 3; k <= n; k++) {
  10.         	array[k] = array[k-1] + array[k-2] + array[k-3];
  11. 		}
  12. 		System.out.print(array[n]);
  13. 	}
  14. }
Success #stdin #stdout 0.12s 35196KB
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4680045560037375
https://ideone.com/LBpvtm
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language:
Java (HotSpot 12)
created:
4 years ago
visibility:
public

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