fork download
copy 
  1. #include <stdio.h>
  2.  
  3. //練習問題E
  4.  int tri(int n){
  5.  	if(n==0||n==1){
  6.  		return 0;
  7.  	}else if(n==2){
  8.  		return 1;
  9.  	}else{
  10.  		return tri(n-1)+tri(n-2)+tri(n-3);
  11.  	}
  12.  }
  13.  
  14.  
  15.  
  16. int main(void) {
  17. 	int n = 7;
  18.     printf("数列Tnについて, n=%dのときの値は%d\n", n, tri(n));
  19. 	return 0;
  20. }
  21.  
  22.  
Success #stdin #stdout 0.01s 5276KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
数列Tnについて, n=7のときの値は13
https://ideone.com/lv92sh
language:
C (gcc 8.3)
created:
1 day ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!