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  1. #include <iostream>
  2. #include <cmath>
  3. using namespace std;
  4.  
  5. int main() {
  6. 	double p;
  7. 	cin >> p;
  8. 	if(p < pow(2, (double)1/3) || p > 2) { // Если корней нет
  9. 		cout << "No solutions";
  10. 	} else { // Корни есть
  11. 		if(p == 2) { // Если корень один
  12. 			cout << "x = 0";
  13. 		} else { // Корней два
  14. 			double x1 = -sqrt(-pow(p, 9) + 6 * pow(p, 6) + 15 * pow(p, 3) + 8) / pow(3 * p, 1.5);
  15. 			double x2 = sqrt(-pow(p, 9) + 6 * pow(p, 6) + 15 * pow(p, 3) + 8) / pow(3 * p, 1.5);
  16. 			cout << "x1 = " << x1 << endl;
  17. 			cout << "x2 = " << x2;
  18. 	}
  19. 	}
  20. 	return 0;
  21. }
Success #stdin #stdout 0s 3472KB
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https://ideone.com/A8DXC9
км72
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
public

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