fork download
copy 
  1. #include <stdio.h>
  2. //フィボナッチ数列
  3. int rec(int n){
  4. 	if(n==1){
  5. 		return 1;	
  6. 	}
  7. 	else if(n==2){
  8. 		return 1;
  9. 	}
  10. 	else{
  11. 	return rec(n-1)+rec(n-2);
  12. 	}
  13. }
  14.  
  15. int main(void) {
  16.     int n = 10;
  17.         printf("フィボナッチ数列の第%d項は%d\n", n, rec(n));
  18. 	return 0;
  19. }
  20.  
  21.  
Success #stdin #stdout 0s 5504KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
フィボナッチ数列の第10項は55
https://ideone.com/Tqgpwt
language:
C (gcc 8.3)
created:
1 year 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!