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  1. #include <stdio.h>
  2. //課題２
  3. int bn(int n)
  4. {
  5. 	if(n==1)
  6. 	return 5;
  7.  
  8. 	else
  9. 	return bn(n-1)+6;
  10. }
  11.  
  12. int an(int n)
  13. {
  14. 	if(n==1)
  15. 	return 2;
  16.  
  17. 	else 
  18. 	return an(n-1)+bn(n-1);
  19. }
  20.  
  21. int main()
  22. {
  23. 	int n;
  24.  
  25. 	scanf("%d",&n);
  26. 	printf("%d\n",an(n));
  27.  
  28. 	return 0;
  29. }
Success #stdin #stdout 0s 5288KB
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https://ideone.com/ZQmuHO
language:
C (gcc 8.3)
created:
45 days ago
visibility:
public

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