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  1. #include <iomanip>
  2. #include <iostream>
  3. #include <cstdlib>
  4.  
  5. using namespace std;
  6.  
  7.  
  8. double f(double x)
  9. {
  10.   return(x*x/50);
  11. }
  12. double f2(double x)
  13. {
  14.   return(1+x*x/100-x/200);
  15. }
  16.  
  17. int main()
  18. {
  19.   const int N = 1000;
  20.   double xp,xk,s,dx, s2;
  21.   int i;
  22.  
  23.   cout << setprecision(2)
  24.        << fixed;      
  25. xp=0;
  26. xk=10;
  27. int Ax, Ay, Bx, By, Cx, Cy, Dx, Dy;
  28. s  = 0;
  29. s2 = 0;
  30.   dx = (xk - xp) / N;
  31.   for(i = 1; i <= N; i++) s += f(xp + i * dx);
  32.   s *= dx;
  33.   dx = (xk - xp) / N;
  34.   for(i = 1; i <= N; i++) s2 += f2(xp + i * dx);
  35.   s2 *= dx;
  36.   cout<<"a) "<<s+s2<<endl;
  37.   int j=0;
  38.   while(f(j)+f2(j)<9999999999999)
  39.   {
  40.   	j++;
  41.   	if(f(j)+f2(j)>=26)
  42.   	{
  43.   		j+=1;
  44.   		Ax=j;
  45.   		Dx=j;
  46.   		Bx=j+100;
  47.   		Cx=Bx;
  48.   		Ay=-f(j);
  49.   		By=Ay;
  50.   		Cy=f2(j);
  51.   		Dy=Cy;
  52.   		break;
  53.   	}
  54.   }
  55.   cout<<"b) "<<"Najmniejsza wartość C to "<<j+100<<endl<<"A = ("<<Ax<<", "<<Ay<<")"<<endl;
  56.   cout<<"B = ("<<Bx<<", "<<By<<")"<<endl;
  57.   cout<<"C = ("<<Cx<<", "<<Cy<<")"<<endl;
  58.   cout<<"D = ("<<Dx<<", "<<Dy<<")"<<endl;
  59.   return 0;
  60. }
Success #stdin #stdout 0.01s 5532KB
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stdout
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a) 19.76
b) Najmniejsza wartość C to 130
A = (30, -18)
B = (130, -18)
C = (130, 9)
D = (30, 9)
https://ideone.com/byYGfr
language:
C++ (gcc 8.3)
created:
3 years ago
visibility:
public

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