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  1. #include <stdio.h>
  2. int a(int n) 
  3. {
  4. 	if(n == 1)
  5. 	{
  6. 		return 1;
  7. 	}
  8. 	else
  9. 	{
  10. 		return 2*a(n-1)+2;
  11. 	}
  12. }
  13. int main(void) 
  14. {
  15. 	int n;
  16. 	scanf("%d", &n);
  17. 	printf("a(%d)の値は%d¥n", n, a(n));
  18. 	return 0;
  19. }
  20.  
Success #stdin #stdout 0s 5320KB
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stdin
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Standard input is empty
stdout
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a(32767)の値は-2¥n
https://ideone.com/AjFFK9
language:
C (gcc 8.3)
created:
9 hours ago
visibility:
public

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