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  1. #include <stdio.h>
  2.  
  3. int b(int n){
  4. 	if(n==1){
  5. 	return 5;}
  6. 	else
  7. 	return b(n-1)+6;
  8. 	}
  9.  
  10. int a(int n){
  11. 	if(n==1){
  12. 		return 2;
  13. 	}
  14. 	else
  15. 		return a(n-1)+b(n-1);
  16.  
  17. 	}
  18. int main(void) {
  19.  
  20. 	int n;
  21.  
  22. 	scanf("%d",&n);
  23. 	printf("%d",a(n));
  24. 	return 0;
  25. }
  26.  
Success #stdin #stdout 0s 5320KB
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stdout
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https://ideone.com/Auc2ri
language:
C (gcc 8.3)
created:
15 days ago
visibility:
public

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