Missionary and cannibals

// missionary and cannibals.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include<iostream>
using namespace std;

int ml=3, cl=3, mr=0,cr=0; //initilize everythng on left
int boat_pos=0; //0=left, 1=right

void display()
{
    cout<<"\nThe Position is   ";
    for (int i=0;i<ml;i++)
        cout<<"M";
    for (int i=0;i<cl;i++)
        cout<<"C";
    if(boat_pos) cout<<"|      \\__/|" ;
    else cout<<"|\\__/       |" ;
    for (int i=0;i<mr;i++)
        cout<<"M";
    for (int i=0;i<cr;i++)
        cout<<"C";
}

int check()
{
    if(ml<cl && ml!=0)
        {
            cout<<"\nMore cannibals on left! \nGAME OVER";
            system("pause");
            exit(1);
        }
    if(mr<cr && mr!=0)
    {
        cout<<"\nMore cannibals on right! \nGAME OVER";
        system("pause");
        exit(1);
    }

    if(mr==3 && cr==3)
    {
        cout<<"\nYou Win!!!";
        system("pause");
        exit(1);
    }

    return 1;  //returns 1 if none of the conditions is true
}


void move()
{
    int p1, p2,ppl; //person1 and person2
    cout<<"\nEnter the first person in the boat: 1. Missionary  2.cannibal";
    cin>>p1;
    cout<<"enter the second person in the boat 1. Missionary  2.cannibal 3:Empty";
    cin>>p2;

    ppl=p1*10+p2;

    if(boat_pos) //boat to right
    {
      switch(ppl)
      {
      case 10:
          if(mr<1)
              cout<<"\nerror. no missionaries of right";
          else
        { ml+=1;  mr--;  }
        break;

      case 11:
          if(mr<2)
              cout<<"\nerror. not enough people";
          else
          { ml+=2; mr-=2;}
          break;
      case 20:
          if(cr<1)
              cout<<"\nerror. ot enough people";
          else
          {cl+=1; cr--;}
        break;

      case 21:
      case 12:

          if(cr<1 || mr<1)
              cout<<"\nerror. not enough people";
          else
          { cl+=1; ml+=1; cr--; mr--;}
        break;

      case 22:
            if(cr<2)
              cout<<"\nerror. not enough people";
          else
          {cl+=2; cr-=2;}
          break;

      default:
          cout<<"\nWRONG CH";
      }


    }


    else //boat to left
    {
      switch(ppl)
      {
      case 10:
          if(ml<1)
              cout<<"\nerror. no missionaries of right";
          else
          {mr+=1; ml--;}
        break;

      case 11:
          if(ml<2)
              cout<<"\nerror. not enough people";
          else
          { mr+=2; ml-=2;}
          break;
      case 20:
          if(cl<1)
              cout<<"\nerror. ot enough people";
          else
          { cr+=1; cl--;}
        break;

      case 21:
      case 12:

          if(cl<1 || ml<1)
              cout<<"\nerror. not enough people";
          else
          { cr+=1; mr+=1; ml-=1;cl-=1;}
        break;

      case 22:
            if(cl<2)
              cout<<"\nerror. not enough people";
          else
          {  cr+=2; cl-=2;}
          break;

      default:
          cout<<"\nWRONG CHOICE";
      }


    }
}





int _tmain(int argc, _TCHAR* argv[])
{
    cout<<"\nMissionaries and cannibals Game:\n";
    int status=1;

    cout<<"\n\n";
    while(status)
    {
        display();
        move();
        cout<<"\n\n";
        status=check();
        boat_pos=!boat_pos;
    }


    return 0;
}


/*

Missionaries and cannibals Game:



The Position is   MMMCCC|\__/       |
Enter the first person in the boat: 1. Missionary  2.cannibal2
enter the second person in the boat 1. Missionary  2.cannibal 3:Empty2



The Position is   MMMC|      \__/|CC
Enter the first person in the boat: 1. Missionary  2.cannibal2
enter the second person in the boat 1. Missionary  2.cannibal 3:Empty0



The Position is   MMMCC|\__/       |C
Enter the first person in the boat: 1. Missionary  2.cannibal2
enter the second person in the boat 1. Missionary  2.cannibal 3:Empty2



The Position is   MMM|      \__/|CCC
Enter the first person in the boat: 1. Missionary  2.cannibal2
enter the second person in the boat 1. Missionary  2.cannibal 3:Empty0



The Position is   MMMC|\__/       |CC
Enter the first person in the boat: 1. Missionary  2.cannibal1
enter the second person in the boat 1. Missionary  2.cannibal 3:Empty1



The Position is   MC|      \__/|MMCC
Enter the first person in the boat: 1. Missionary  2.cannibal1
enter the second person in the boat 1. Missionary  2.cannibal 3:Empty2



The Position is   MMCC|\__/       |MC
Enter the first person in the boat: 1. Missionary  2.cannibal1
enter the second person in the boat 1. Missionary  2.cannibal 3:Empty1



The Position is   CC|      \__/|MMMC
Enter the first person in the boat: 1. Missionary  2.cannibal2
enter the second person in the boat 1. Missionary  2.cannibal 3:Empty0



The Position is   CCC|\__/       |MMM
Enter the first person in the boat: 1. Missionary  2.cannibal2
enter the second person in the boat 1. Missionary  2.cannibal 3:Empty2



The Position is   C|      \__/|MMMCC
Enter the first person in the boat: 1. Missionary  2.cannibal2
enter the second person in the boat 1. Missionary  2.cannibal 3:Empty0



The Position is   CC|\__/       |MMMC
Enter the first person in the boat: 1. Missionary  2.cannibal2
enter the second person in the boat 1. Missionary  2.cannibal 3:Empty2



You Win!!!Press any key to continue . . .


*/