pr0309.cpp

practice c++, it is from the book http://www.amazon.com/Schaums-Outline-Programming-John-Hubbard

//  Programming with C++, Second Edition, by John R. Hubbard
//  Copyright McGraw-Hill, 2000
//  Problem 3.9 on page 51
//  Playing "Rock, Scissors, Paper"

#include <iostream>
using namespace std;

enum Choice {ROCK, PAPER, SCISSORS};
enum Winner {PLAYER1, PLAYER2, TIE}; 

int main()
{ int n;
  Choice choice1, choice2;
  Winner winner;
  cout << "Choose rock (0), paper (1), or scissors (2):" << endl;
  cout << "Player #1: ";
  cin >> n;
  choice1 = Choice(n);
  cout << "Player #2: ";
  cin >> n;
  choice2 = Choice(n);
  if (choice1 == choice2) winner = TIE;
  else if (choice1 == ROCK)
    if (choice2 == PAPER) winner = PLAYER2;
    else winner = PLAYER1;
  else if (choice1 == PAPER)
    if (choice2 == SCISSORS) winner = PLAYER2;
    else winner = PLAYER1;
  else // (choice1 == SCISSORS)
    if (choice2 == ROCK) winner = PLAYER2;
    else winner = PLAYER1;
  if (winner == TIE) cout << "\tYou tied.\n";
  else if (winner == PLAYER1) cout << "\tPlayer #1 wins." <<endl;
  else cout << "\tPlayer #2 wins." << endl;
}