#include <iostream>
#include <iomanip>

using namespace std;

long double fun(long double count, long double epsilon, long long &interation)
{
    long long n = 2;
    long double result = 1, temp = -1 * count * count, dif;
    dif = 1 + n*temp;
    result = dif;
    while (dif > epsilon)
    {
        n++;
        temp *= -1 * count;
        dif = n*temp;
        result += dif;
        n++;
        temp *= -1 * count;
        dif += n*temp;
        result += dif;
        if (dif < 0)
            dif *= -1;
    }
    interation = n / 2;
    return result;
}

int main()
{
    setlocale(LC_ALL, "Russian");
    const int str_wight = 16;
    long double StartBoard, FinishBoard, Step, Epsilon;
    cout << "Введите начало промежутка: ";
    cin >> StartBoard;
    cout << "Введите конец промежутка: ";
    cin >> FinishBoard;
    cout << "Введите шаг: ";
    cin >> Step;
    cout << "Введите Эпислон: ";
    cin >> Epsilon;
    cout << setw(20) << "Значение" << setw(20) << "Глубина итерации" << setw(20) << "Результат" << endl;
    for (long double count = StartBoard; count <= FinishBoard; count += Step)
    {
        long long itr;
        long double temp = fun(count, Epsilon, itr);
        cout << setw(20) << count << setw(20) << itr << setw(20) << temp << endl;
    }
    system("pause");
    return 0;
}