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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. }else if(n==1){
  8. 	return 0;
  9. }else if(n==2){
  10. 	return 2;
  11. }else {
  12. 	return rec(n-2)+rec(n-3);
  13. }
  14. }
  15.  
  16. int main(void) {
  17.     int n = 50; 
  18.     for(int i = 1; i <= n; i++){
  19.     	int a=rec(i);
  20.     	if(a%i==0)
  21.         printf("a[%d]=%d\n",i, rec(i));
  22.     }
  23.  
  24. 	return 0;
  25. }
  26.  
  27.  
Success #stdin #stdout 0.01s 5320KB
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stdin
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Standard input is empty
stdout
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a[1]=0
a[2]=2
a[3]=3
a[5]=5
a[7]=7
a[11]=22
a[13]=39
a[17]=119
a[19]=209
a[23]=644
a[29]=3480
a[31]=6107
a[37]=33004
a[41]=101639
a[43]=178364
a[47]=549289
https://ideone.com/VSjUrv
language:
C (gcc 8.3)
created:
1 day ago
visibility:
public

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