#include "stdio.h"
#include "iostream"
#include "math.h"
#include "conio.h"

using namespace std;

int main()
{
    setlocale(LC_ALL, "Russian");

    float A, B, DEL, x, F, a, b, c;
    int i = 1; F = 0.0;

    cout << "ВВедите точку A: "; cin >> A;
    do
    {
        cout << "Введите точку B  (B > A): "; cin >> B;
    } while (A > B);
    cout << "Введие шаг: "; cin >> DEL;
    cout << "Введите коэфициент a: "; cin >> a;
    cout << "Введите коэфициент b: "; cin >> b;
    cout << "Введите коэфициент c: "; cin >> c;

    cout << "_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _" << endl << "Цикл for:" << endl;
    for (x = A; (A <= x) && (x <= B); x = +DEL)
    {
        if ((x+c<0) && ((a) != 0))
        {
            cout << endl << "F = (x - a) / (x - c): \t";
            cout << "При x =" << x << "\tF" << i << "=" << F;
            F = (x - a) / (x - c);
            i++;
        }
        else
        {
            cout << "При x =" << x << "\tF" << i << "=" << F;
            F = x*c + x*b
            i++;
        }
    }

    i = 1; F = 0.0; x = A;
    cout << endl << "_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _" << endl << "Цикл while:" << endl;
    while ((A <= x) && (x <= B))
    {
        if (((x+c<0) && (a)) != 0)
        {
        cout << endl << "F = -a*x*x*x-b: \t";
        cout << "При x =" << x << "\tF" << i << "=" << F;
        i++;
            }
        else if ((x+c>0) && ((a) == 0))
        {
            cout << endl << "F = (x - a) / (x - c): \t";
            cout << "При x =" << x << "\tF" << i << "=" << F;
            F = (x - a) / (x - c);
            i++;
        }
        else
        {
            cout << endl << "F = x * c + x *b \t";
            cout << "При x =" << x << "\tF" << i << "=" << F;
            F = x * c + x * b;
            i++;
        }
        x += DEL;
    }
    i = 1; F = 0.0; x = A;
    cout << endl << "_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _" << endl << "Цикл while:" << endl;
    do
    {
        if ((x+c<0) && ((a) != 0))
        {
            cout << endl << "F = -a * x * x * x - b: \t";
            cout << "При x =" << x << "\tF" << i << "=" << F;
            F = -a * x * x * x - b ;
            i++;
        }
        else if (((x+c > 0) && (a)) == 0)
        {
            cout << endl << "F = (x - a) / (x - c): \t";
                cout << "При x =" << x << "\tF" << i << "=" << F;
                F = (x - a) / (x - c);
                i++;
        }
        else
        {
            cout << endl << "F = x * c + x * b \t";
                cout << "При x =" << x << "\tF" << i << "=" << F;
                F = x * c + x * b;
            i++;
        }
        x += DEL;
    } while ((A <= x) && (x <= B));
    _getch();
        return 0;
}