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  1. #include <stdio.h>
  2.  
  3. int fib(int n)
  4. {
  5.     if (n == 1 || n == 2)  // 初期条件
  6.         return 1;
  7.     else
  8.         return fib(n - 1) + fib(n - 2);  // 再帰呼び出し
  9. }
  10.  
  11. int main()
  12. {
  13.     printf("答えは: %d\n", fib(5));
  14.     return 0;
  15. }
Success #stdin #stdout 0s 5316KB
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Standard input is empty
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答えは: 5
https://ideone.com/Qo5MOW
language:
C (gcc 8.3)
created:
1 day ago
visibility:
public

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