Hello! :) I need to create a Question & Answer Program, just like "Who wants to be a Millionaire".
So far, i am partially done with the code. It's just I am having problem regarding with lifelines.
I need to make the 3 lifelines be used for only once. Really need a solution for this :(
this is my code:

#include <iostream>
#include <cstdlib>
#include <conio.h>

/* run this program using the console pauser or add your own getch, system("pause") or input loop */
using namespace std;


int main(int argc, char** argv) 
{
    char ans1,ans2,dec;
    char name[10];
    int x,y,z;
    x= 1000;
    y = x * 2;
    z = 0;
    int op,life,ch,num;

    cout<<"$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ "<<endl;
    cout<<"$                                                                  $ "<<endl;
    cout<<"$-------------------Who Wants To Be A Millionaire------------------$ "<<endl;
    cout<<"$                                                                  $ "<<endl;
    cout<<"$                                                                  $ "<<endl;
    cout<<"$--------------------------Programmed By---------------------------$ "<<endl;
    cout<<"$                                                                  $ "<<endl;
    cout<<"$                                                                  $ "<<endl;
    cout<<"$                                                                  $ "<<endl;
    cout<<"$                                                                  $ "<<endl;
    cout<<"$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ "<<endl<<endl;
    cout<<"_____________________________________________________________________"<<endl<<endl;
    cout<<"Welcome to Who wants to be a Millionaire!"<<endl;
    cout<<"Enter your Name: ";
    cin>>name;

    cout<<"Okay "<<name<<", Here's the mechanics: ";
    cout<<"There is 15 questions and each question have\ntheir corresponding amount. You have 3 lifelines that may save you."<<endl<<endl;
    po:

    cout<<"***************************************************************************"<<endl;
    cout<<"Lifeline no.1: Ask the Audience - You will ask the opinion of the audience."<<endl;
    cout<<"Lifeline no.2: 50:50 - The two right answers will remain."<<endl;
    cout<<"Lifeline no.3: Call a Friend - You may call a friend to help you\n\t       to the said question."<<endl;
    cout<<"***************************************************************************"<<endl<<endl;

    cout<<"So, Mr. "<<name<<" Let's start?"<<endl;
    po1:
    cout<<"Press 'Y' to start: "<<endl;
    cin>>dec;
    system("cls");

    if(dec == 'y' && 'Y')
        {
            goto po2;
        }
    else if(dec != 'y' && 'Y')
        {
        cout<<"Just press 'Y' whenever your ready :)"<<endl;
        goto po1;
        }   


    po2:
    cout<<"For P1000:\n"<<endl;
    cout<<"What is the Capital of the Philippines?\n";
    cout<<"a.)Manila \t b.)Recto\nc.)Quezon City \t d.)Quiapo\n"<<endl;
    cout<<"Want to use your Lifeline?"<<endl;
    cout<<"[1]Yes \t[2]No"<<endl;
    cin>>ch;

    if(ch == 1)
    {
        goto po3;
    }
    else if(ch == 2)
    {
        system("cls");
        goto po4;
    }

    po3:
    cout<<"***************************************************************************"<<endl;
    cout<<"[1]: Ask the Audience - You will ask the opinion of the audience."<<endl;
    cout<<"[2]: 50:50 - The two right answers will remain."<<endl;
    cout<<"[3]: Call a Friend - You may call a friend to help you\n\t       to the said question."<<endl;
    cout<<"***************************************************************************"<<endl;
    cin>>life;
    if(life == 1)
        {
        cout<<"a.)******************"<<endl;
        cout<<"b.)*****"<<endl;
        cout<<"c.)*************"<<endl;
        cout<<"d.)********"<<endl;
        }
    else if(life == 2)
        {
        cout<<"a.)Manila \t b.)------\nc.)------ \t d.)Quiapo"<<endl;
        }
    else if(life == 3)
        {
        cout<<"Enter phone number: "<<endl;
        cin>>num;
        cout<<"CALLING . . ."<<endl;
        getch();
        cout<<"Friend: Hello? "<< name <<" What's up dude?"<<"Need Help?"<<endl;
        getch();
        cout<<name<<": Yes dude. What is the Capital of the Philippines?"<<endl;
        getch();
        cout<<"Friend: I think it's Manila!"<<endl;
        getch();
        cout<<name<<": How sure are you?"<<endl;
        getch();
        cout<<"Friend: I'm 100% sure about this."<<endl;
        getch();
        cout<<name<<": Okay thanks!"<<endl;
        getch();
        cout<<"Friend: Okay! Keep Rockin' the Free world!"<<endl<<endl;

       }


    po4:
    cout<<"Choose Your Answer: "<<endl;
    cin>>ans1;
    cout<<"Is that your final answer?"<<endl;
    cout<<"[Y]Yes, That's my final answer \t [N]Not yet"<<endl;
    cin>>dec;

    if(dec == 'y' && 'Y')
    {
        goto po5;   
    }
    else if(dec != 'y' && 'Y')
    {
        system("cls");
        goto po2;   
    }

    po5:
    switch(ans1)
    {   
        case 'a'  :
            cout<<"\nCongrats! You answered right!"<<endl;
            break;
        case 'b' :
            cout<<"\nYou answered wrong! You Lose!"<<endl;
            break;
        case 'c' :
            cout<<"\nYou answered wrong! You Lose!"<<endl;
            break;
        case 'd' :
            cout<<"\nYou answered wrong! You Lose!"<<endl;
            break;
    default :
        cout<<"\nInvalid Input";          
    }
    switch(ans1)
    {
        case 'a':
            cout<<"You just won: P"<<x<<endl;
            break;
        case 'b':
            cout<<"I'm sorry, you will take home: P"<<z<<endl;
            break;
        case 'c':
            cout<<"I'm sorry, you will take home: P"<<z<<endl;
            break;
        case 'd':
            cout<<"I'm sorry, you will take home: P"<<z<<endl;
            break;
    default :
        system("cls");
        cout<<"Invalid input! Choose between the choices!\n"<<endl;
        goto po2;
    }
    if(ans1 == 'a')
        {
        cout<<"Proceed to the next Question? Or You will now go home with P"<<x<<"\n[1]Proceed \t[2]Go Home"<<endl;
        cin>>op;
        }
    else if(ans1 != 'a')
        {
        cout<<"Thank you for playing! :)"<<endl;
        return 0;
        }

    switch(op)
    {
        case 1:
                cout<<"_____________________________________________________________________"<<endl<<endl;
                break;
        case 2:
                cout<<"Alright! "<<name<<" You'll take home P"<<x<<"\nThank you for playing! :)"<<endl;
                return 0;
                break;
    default :
        cout<<"Invalid Input!"<<endl;
    }
    cout<<"What is the color of an Apple?"<<endl;
    cout<<"a.)Black \t b.)Rainbow \nc.)Red \t\t d.)Colorless"<<endl;
    cout<<"\nChoose Your Answer: "<<endl;
    cin>>ans2;
    switch(ans2)
    {
        case 'a':
            cout<<"\nYou answered wrong! You Lose!"<<endl;
            break;
        case 'b':
            cout<<"\nYou answered wrong! You Lose!"<<endl;
            break;
        case 'c':
            cout<<"\nCongrats! You answered right!"<<endl;
            break;
        case 'd':
            cout<<"\nYou answered wrong! You Lose!"<<endl;
            break;
    default :
        cout<<"\nInvalid Input";
    }   
    switch(ans2)
    {
        case 'a':
            cout<<"I'm sorry, you will take home: P"<<z<<endl;
            break;
        case 'b':
            cout<<"I'm sorry, you will take home: P"<<z<<endl;
            break;
        case 'c':
            cout<<"You have now: P"<<y<<endl;
            break;
        case 'd':
            cout<<"I'm sorry, you will take home: P"<<z<<endl;
            break;
    default :
        cout<<" "<<endl;
    }
    if(ans2 == 'c')
        {
        cout<<"Proceed to the next Question? Or You will now go home with P"<<y<<"\n[1]Proceed \t[2]Go Home"<<endl;
        cin>>op;
        }
    else if(ans2 != 'c')
        {
        cout<<"Thank you for playing! :)"<<endl;
        return 0;
        }
    switch(op)
    {
        case 1:
                cout<<"_____________________________________________________________________"<<endl<<endl;
                cout<<"Question no.3:"<<endl;
                break;
        case 2:
                cout<<"Alright! You'll take home P"<<y<<"\nThank you for playing! :)"<<endl;
                return 0;
                break;
    }





    system("pause");    


    return 0;
}

I should use 3 boolean flags and set them to false. After one is used set to true. LiveLine1_Used = false;..... if (LiveLine1_Used).... etc.

Alternatively you can use a 3 member array and set each as used, of course after you have initialized the members to false! IE:
bool lifeline[3] = {false, false, false};. Either method (mine or ddanbe) will work for you. So, if selection is 1, then lifeline[0] = true;, etc.

This article has been dead for over six months. Start a new discussion instead.