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  1. import java.util.Scanner;
  2.  
  3. class Main {
  4. 	public static void main (String[] args) {
  5. 	    Scanner sc = new Scanner(System.in);
  6.         int n = sc.nextInt();
  7. 	    int[] F = new int[51];
  8. 	    F[0] = 0;
  9. 	    F[1] = 1;
  10. 	    F[2] = 1;
  11. 	    F[3] = 2;
  12. 	    F[4] = 3;
  13. 	    for(int i = 5; i <= n; i++) {
  14. 	       F[i] = F[i-2] + F[i-3] + F[i-4];
  15. 	    }
  16. 	    System.out.println(F[n]);
  17. 	}
  18. }
Success #stdin #stdout 0.1s 35124KB
comments (?)
stdin 
50
stdout 
122106097
https://ideone.com/s7c53r
8536
language:
Java (HotSpot 12)
created:
4 years ago
visibility:
secret

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