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  1. #include <stdio.h>
  2. //練習問題E
  3. int tri(int n){
  4. 	if(n==0)	return 0;
  5.     if(n==1)    return 0;
  6.     if(n==2)    return 1;
  7.  
  8.     return tri(n-1)+tri(n-2)+tri(n-3);
  9.    }
  10.  
  11.  
  12.  
  13. int main(void) {
  14. 	int n = 7;
  15.     printf("数列Tnについて, n=%dのときの値は%d\n", n, tri(n));
  16. 	return 0;
  17. }
  18.  
Success #stdin #stdout 0.01s 5292KB
comments (?)
stdin 
Standard input is empty
stdout 
数列Tnについて, n=7のときの値は13
https://ideone.com/4DCb4N
language:
C (gcc 8.3)
created:
19 days ago
visibility:
public

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