#include <iostream>
#include <cmath>

using namespace std;
typedef double (*TFun)(double);
double fun1(double x);
double Factorial(int k, double rez);
void Out(TFun,double a,double b,double h);
double fun2(double n,double x);
int main()
{
    double  a, b, h;
    int  n,kod;
    cout << "Input a: " << endl;
    cin >> a;
    cout << "Input b: " << endl;
    cin >> b;
    cout << "Input n: " << endl;
    cin >> n;
    cout << "Input h: " << endl;
    cin >> h;
    cout<< "Y(x) - 0 "<<endl;
    cout<< "S(x) - 1 "<<endl;
    cin>>kod;
 switch(kod)
{
    case 0:
 {
     cout << " Y(x): "<<endl;
     Out(fun1,a,b,h);
 }break;
     case 1:
     {
         cout << " S(x): "<<endl;
       Out(fun1,a,b,h);
     }break;
    }
}
double fun2(double n,double x)
{
    double summ=0,rez;
    int k;
    for (k = 0; k <= n; k++)
    {
        summ = 0;rez=1;
      rez= Factorial(k,rez);
        summ += pow((2 * x), k) / rez ;
    }
    return summ;
}

void Out(TFun,double a,double b,double h)
{
    double x;
    for (x = a; x <= b; x += h)
    {
        cout <<fun1(x)<<endl;

    }
}

double fun1(double x)
{
   return exp (2 * x);
}

double Factorial(int numb,double rez)
{
    int i;
    for ( i = numb; i != 0; i -- )
    {
        rez = rez * numb;
        numb--;
    }
    return rez;
}