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  1. #include <stdio.h>
  2.  
  3. // 課題4
  4. int rec(int n){
  5.     if(n == 0){
  6.         return 3;
  7.     }
  8.     else if(n == 1){
  9.         return 0;
  10.     }
  11.     else if(n == 2){
  12.         return 2;
  13.     }
  14.     else{
  15.         return rec(n-2) + rec(n-3);
  16.     }
  17. }
  18.  
  19. int main(void) {
  20.     int n = 50;
  21.  
  22.     for(int i = 1; i <= n; i++){
  23.         if(rec(i) % i == 0){
  24.             printf("%d, ", i);
  25.         }
  26.     }
  27.  
  28.     return 0;
  29. }
Success #stdin #stdout 0.02s 5320KB
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stdin
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Standard input is empty
stdout
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1, 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47,
https://ideone.com/ZnQdqx
language:
C (gcc 8.3)
created:
2 days ago
visibility:
public

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