fork download
copy 
  1. #include <stdio.h>
  2. int tri(int n){
  3. 	if (n==0){
  4. 	return 0;
  5. }
  6. else if (n==1){
  7. 	return 0;
  8.  
  9. }
  10. else if (n==2){
  11. 	return 1;
  12.  
  13. }
  14. else{
  15. 	return tri(n-1)+tri(n-2)+tri(n-3);
  16. }
  17. }
  18.  
  19.  
  20. int main(void) {
  21. 	int n = 7;
  22.     printf("数列Tnについて, n=%dのときの値は%d\n", n, tri(n));
  23. 	return 0;
  24. }
  25.  
Success #stdin #stdout 0.01s 5320KB
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/2qFYMx
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!