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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. long long cache[1000] = {0};
  5. long long fib(int n)
  6. {
  7. 	if (n<2){
  8. 		return n;
  9. 	}
  10. 	if (cache[n]){
  11. 		return cache[n];
  12. 	}
  13. 	return cache[n] = fib(n-1) + fib(n-2);
  14. }
  15.  
  16. int main() {
  17. 	int n;
  18. 	cin >> n;
  19. 	string s = "";
  20. 	s += char('0' + fib(n));
  21. 	cout << s << endl;
  22. 	return 0;
  23. }
Success #stdin #stdout 0.01s 5284KB
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https://ideone.com/94n6r3
language:
C++ (gcc 8.3)
created:
12 hours ago
visibility:
public

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