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  1. #include <stdio.h>
  2.  
  3. // フィボナッチ数列の第 n 項を返す再帰関数
  4. int fibonacci(int n) {
  5.     if (n == 0) {
  6.         return 0;
  7.     } else if (n==1) {
  8.         return 1;
  9.     } else {
  10.         return fibonacci(n-1)+fibonacci(n-2);
  11.     }
  12. }
  13.  
  14. int main(void) {
  15.     int n = 5;
  16.     printf("F(%d) = %d\n", n, fibonacci(n)); // 出力結果: F(5) = 5
  17.     return 0;
  18. }
  19.  
Success #stdin #stdout 0s 5320KB
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stdin
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Standard input is empty
stdout
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F(5) = 5
https://ideone.com/KewJFi
language:
C (gcc 8.3)
created:
5 days ago
visibility:
public

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