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  1. #include <stdio.h>
  2.  
  3. // 再帰関数の定義
  4. int func(int n){
  5.     if(n == 0){          // 基底条件（a0 = -1）
  6.         return -1;
  7.     } else {              // 再帰呼び出し
  8.         return 3 * func(n - 1) + 5;
  9.     }
  10. }
  11.  
  12. int main(void) {
  13.     int n = 3, m;
  14.     m = func(n);
  15.     printf("数列anについて, n=%dのときの値は%d\n", n, m);
  16.     return 0;
  17. }
  18.  
Success #stdin #stdout 0.01s 5272KB
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Standard input is empty
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数列anについて, n=3のときの値は38
https://ideone.com/fxDNUD
language:
C (gcc 8.3)
created:
18 days ago
visibility:
public

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