#include "stdafx.h"
#include <iostream>
double cikl(double, double);
double recurs(double, double);
using namespace std;
int main()
{
	setlocale(LC_CTYPE, "rus");
	int n, m, vibor, proizv;
	cout << "ВВЕДИТЕ М И N"<<endl;
	cin >> n >> m;
	cout << "РЕКУРСИЯ - 1; ЦИКЛ - 2;" << endl;
	cin >> vibor;
	if (vibor == 1)
	{
		proizv = recurs(n, m);
		cout << "=" << proizv << endl;
	}
	if (vibor == 2)
	{
		proizv = cikl(n, m);
		cout << "=" << proizv << endl;
	}
	system("pause");
	return 0;
}
double recurs(double n, double m)
{
	if (m >= 1)
		return n + recurs(n, m - 1);
	else return 0;
}
double cikl(double n, double m)
{
	double proizved = 0;
	for (int i = 1; i <= m; i++)
	{
		proizved += n;
	}
	return proizved;
}