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  1. #include <iostream>
  2. #include <cmath>
  3. using namespace std;
  4.  
  5. int main() {
  6. 	double s1, s2, n, x;
  7. 	cin >> n;
  8. 	x = n*(5-sqrt(3)-sqrt(6*sqrt(3)-4))/(8*(2-sqrt(3)));
  9. 	s1 = 4*x; //Длина пути по дороге
  10. 	s2 = sqrt(2*(n*n - 4*x*n + 8*x*x)); //Длина пути напрямик
  11. 	cout << s1 <<' ' << s2;
  12. 	return 0;
  13. }
Success #stdin #stdout 0s 3472KB
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https://ideone.com/nI6TqB
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
secret

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