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  1. #include <stdio.h>
  2.  
  3. // 課題3 修正版
  4. int rec(int n){
  5.     if(n < 0){
  6.         return 0; // 負の値は定義しないので0を返す
  7.     } else if(n == 0){
  8.         return 3;
  9.     } else if(n == 2){
  10.         return 0;
  11.     } else if(n == 3){
  12.         return 2;
  13.     } else {
  14.         return rec(n-2) + rec(n-3);
  15.     }
  16. }
  17.  
  18. int main(void) {
  19.     int n = 50; 
  20.     for(int i = 0; i <= n; i++){
  21.         printf("%d, ", rec(i));
  22.     }
  23.     return 0;
  24. }
Success #stdin #stdout 0.03s 5288KB
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stdin
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Standard input is empty
stdout
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3, 0, 0, 2, 0, 2, 2, 2, 4, 4, 6, 8, 10, 14, 18, 24, 32, 42, 56, 74, 98, 130, 172, 228, 302, 400, 530, 702, 930, 1232, 1632, 2162, 2864, 3794, 5026, 6658, 8820, 11684, 15478, 20504, 27162, 35982, 47666, 63144, 83648, 110810, 146792, 194458, 257602, 341250, 452060,
https://ideone.com/TTD4gn
language:
C (gcc 8.3)
created:
1 day ago
visibility:
public

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