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  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 2;
  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 5276KB
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Standard input is empty
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フィボナッチ数列の第10項は89
https://ideone.com/dnyju1
language:
C (gcc 8.3)
created:
73 days ago
visibility:
public

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