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  1. #include <iostream>
  2. #include <cmath>
  3. using namespace std;
  4.  
  5. int main() {
  6. 	int n;
  7. 	cin >> n;
  8. 	int a, b, c, d, k;
  9. 	a = 1;
  10. 	b = 1;
  11. 	c = 2;
  12. 	bool x;
  13. 	int counter = 0;
  14. 	while (counter < n){
  15. 		x = true;
  16. 		c = a + b;
  17. 		a = b;
  18. 		b = c;
  19. 		for (int j = 2; j <= sqrt(c) && x; j++) {
  20. 			if((c%j) == 0){
  21. 				x = false;
  22. 			}
  23. 		}
  24. 		if (x){
  25. 			counter ++;
  26. 		}
  27. 	}
  28. 	cout << c;
  29. 	return 0;
  30. }
Success #stdin #stdout 0s 3416KB
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https://ideone.com/MOQHxB
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language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

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