Hello Everyone. I was given problem.. Write a program play the following game: There are 21sticks. Two players take turns picking the sticks. Each player should take atleast 1 sticks and a maximum of 4 sticks at each turn. The player who picks thelast sticks is the winner. But encountered different problem, one of this is that when the Player 1 gives a value of 4, it's working fine... 21-4 will get 17. But when the next player gives a value of 3, it will add up to 17 which makes the MAX_STICKS to 18 that it should be 14. So far I have this code.

Code:

#include <cstdlib>
#include <iostream>
#include <string>
using namespace std;
int main()
{
const int MAX_STICKS = 21;
string player1, player2;
int winnerplayer;
int sticks;
cout << "\tWelcome to Nim!" << endl << endl;
cout << "Players take turns picking up from 1 to 4 sticks from a pile of 21." << endl;
cout << "Whoever picks up the last stick wins." << endl << endl;
cout << "There are " << MAX_STICKS << " stick<s> left." << endl;
cout << "Player 1 - how many will you take? ";
cin >> sticks;
do
{
if ( sticks < 21 )
{ cout << "There are " << (MAX_STICKS - sticks) << " stick<s> left." << endl;
cout << "Player 2 - how many will you take? ";
cin >> sticks;
cout << endl; }
if ( sticks < 21 )
{ cout << "There are " << (MAX_STICKS - sticks) << " stick<s> left." << endl;
cout << "Player 1 - how many will you take? ";
cin >> sticks;
cout << endl; }
}while (sticks > 0);
system("PAUSE");
return EXIT_SUCCESS;
}

Any suggestions? I am totally a newbie in dev c, help would be highly be appreciated. Thanks in advance.