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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int foo(int n)
  5. {
  6. 	if (n == 0)
  7. 		return 0;
  8. 	else if (n == 1)
  9. 		return 3;
  10.  
  11. 	else
  12. 	{
  13. 		return (foo(n-1) + 2*foo(n-2) - 2);
  14. 	}
  15. }
  16.  
  17. int main() {
  18. 	int sum = 0;
  19. 	for (int i = 0; i <= 14; i++)
  20. 		sum += foo(i);
  21.  
  22. 	cout << "foo(15) = " << sum << endl;
  23.  
  24. 	return 0;
  25. }
Success #stdin #stdout 0s 3340KB
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stdin
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Standard input is empty
stdout
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foo(15) = 10936
https://ideone.com/iMCa76
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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