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  1. #include <stdio.h>
  2. //課題4
  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 = 2; i <= n+1; i++){
  22.         int a=rec(i);
  23. 		if(a%i==0){
  24. 			printf("%d, ",i);
  25. 		}
  26.     }
  27.  
  28. 	return 0;
  29. }
  30.  
  31.  
Success #stdin #stdout 0.03s 5324KB
comments (?)
stdin 
Standard input is empty
stdout 
2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47,
https://ideone.com/NjYaHg
language:
C (gcc 8.3)
created:
1 day ago
visibility:
public

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