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  1. #include <stdio.h>
  2. //課題3
  3. int rec(int n){
  4. //rec内を完成させてください
  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.     for(int i = 1; i <= n; i++){  
  22.     if(rec(i) % i == 0){
  23.         printf("n=%d, a(n)=%d\n", i, rec(i));
  24.     }
  25. }
  26.  
  27. 	return 0;
  28. }
  29.  
Success #stdin #stdout 0.01s 5312KB
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stdin
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Standard input is empty
stdout
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n=1, a(n)=0
n=2, a(n)=2
n=3, a(n)=3
n=5, a(n)=5
n=7, a(n)=7
n=11, a(n)=22
n=13, a(n)=39
n=17, a(n)=119
n=19, a(n)=209
n=23, a(n)=644
n=29, a(n)=3480
n=31, a(n)=6107
n=37, a(n)=33004
n=41, a(n)=101639
n=43, a(n)=178364
n=47, a(n)=549289
https://ideone.com/5lcpff
language:
C (gcc 8.3)
created:
18 hours ago
visibility:
public

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