/**
*
* Solution to homework assignment 1
* Introduction to programming course
* Faculty of Mathematics and Informatics of Sofia University
* Winter semester 2019/2020
*
* @author <Velislava Petkova>
* @idnumber <62428>
* @task <4>
* @compiler <VC>
*
*/

#include <iostream>
#include <cmath>
#include <stdlib.h>
using namespace std;
int main()
{
	system("COLOR 3");
	int myNumber = 0;
	cout << "Input a number to start the countdown: ";
	cin >> myNumber;
	system("cls");                                          //Clears the screen after our input
	if (!cin)
	{
		cout << "It is not an accurate number " << endl;    //Checks if the input is correct
		return 1;
	}
	else if (myNumber<1 || myNumber > pow(2, 16) - 1)
	{
		cout << "It is not an accurate number " << endl;
		return 1;
	}
	else
	{
		while (myNumber >= 0)
		{
			cout << myNumber;                        //Displays our number
			long long help = 0;
			do
			{
				help += 2;                      //A loop to help slowing down the operation
				help -= 1;

			} while (help <= 300000000);
			myNumber--;                        //We reduce the number by 1, we clear the screen and display the new number
			system("cls");

		}

	}

	return 0;
}