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  1. #include <stdio.h>
  2. int fib(int n){
  3.   if (n==0){
  4.    return 0;
  5.   }
  6.   if (n==1){
  7.     return 1;
  8.   }
  9.  else return fib(n-1)+fib(n-2);
  10.  }
  11.  
  12. int main(void) {
  13.  int n;
  14.  scanf("%d",&n);
  15.  if (n<0){
  16.   return 1;
  17.  }
  18.  int result = fib(n);
  19.  printf("第%d項の値は%d",n,result);
  20. 	// your code goes here
  21. 	return 0;
  22. }
  23.  
Success #stdin #stdout 0.01s 5324KB
comments (?)
stdin
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7
stdout
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第7項の値は13
https://ideone.com/ksvQm4
language:
C (gcc 8.3)
created:
2 days ago
visibility:
public

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