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  1. #include <stdio.h>
  2. int fib(int n){
  3. 	if(n==0){return 0;
  4. }
  5. else if(n==1)
  6. return 1;
  7. else{
  8. 	return fib(n-1)+fib(n-2);
  9. }}
  10. int main(void) {
  11. int n,b;
  12. scanf("%d",&n);
  13. printf("第%d項目は%dです",n,fib(n));
  14. 	return 0;
  15. }
  16.  
Success #stdin #stdout 0s 5308KB
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15
stdout
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第15項目は610です
https://ideone.com/Q8MTyR
language:
C (gcc 8.3)
created:
2 days ago
visibility:
public

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