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  1. #include <stdio.h>
  2.  
  3. int count(int n)
  4. {
  5. 	if(n==1)
  6. 	return 4;
  7. 	int b=1,s=1,pb,ps;
  8. 	for(int i=2;i<=n;i++)
  9. 	{
  10. 		pb=b;
  11. 		ps=s;
  12. 		s=pb+ps;
  13. 		b=ps;
  14. 	}
  15. 	int res=b+s;
  16. 	return (res*res);
  17. }
  18.  
  19. int main() 
  20. {
  21.     int n=6;
  22.     int c=count(n);
  23.     printf("%d",c);
  24. 	return 0;
  25. }
  26.  
Success #stdin #stdout 0s 2168KB
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https://ideone.com/KDLZAc
language:
C (gcc 8.3)
created:
7 years ago
visibility:
public

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