C++ Design and implement a program that assigns seats on an airplane. Assume the

Question

C++

Design and implement a program that assigns seats on an airplane. Assume the airplane has 20 seats in economy and has 20 seats in the first class (5 rows of 4 seats each, separated by an isle). Your program should take three commands: add passengers, show seating, and quit. When passengers are added, ask for the class (first or the economy), the number of passengers traveling together (1 to 2 in the first class, 1 to 3 in the economy), and the seating preference (aisle or a window in the first class; aisle, center or window in economy). Then try to find a match and assign the seats. If no match exits, print a message. Follow the object printed design process. Show the step by step process.

Explanation / Answer

#include <iostream>
#include <string>
using namespace std;
/* functions */
int mymenu();
int gettingclass();
int passengerstraveling(int);
int seatselection(int);
void firstclass(char[][4]);
void economyclass(char[][6]);
void printresult(char[][4],char[][6]);
/* main method */
int main()
{
    /* variable declarations */
    int selection,i1,j1;
    char myfirst[5][4],myeconomy[30][6];
    for(i1=0;i1<5;i1++)
        for(j1=0;j1<4;j1++)
            myfirst[i1][j1]='-';
    for(i1=0;i1<30;i1++)
        for(j1=0;j1<6;j1++)
            myeconomy[i1][j1]='-';       
    selection=mymenu();
    while(selection!=3)
    {
        if(selection==1)
        {
            selection=gettingclass();
            if(selection==1)
                firstclass(myfirst);
            else
                economyclass(myeconomy);
        }
        else if(selection==2)
        {
            printresult(myfirst,myeconomy);
        }
        else if(selection!=3)
            cout<<"Entry is Invalid!"<<endl;
            selection=mymenu();          
    }
}
/* module for getting class */
int gettingclass()
{
    int selection;
    cout<<"1 - first class"<<endl<<"2 - economy"<<endl<<">>"<<endl;
    cin>>selection;
    while(selection<1||selection>2)
    {
        cout<<"Entry is Invalid!"<<endl;
        cout<<"1 - first class"<<endl<<"2 - economy"<<endl<<">>"<<endl;
        cin>>selection;
    }
    return selection;
}
/* module for passengers accompanying */
int passengerstraveling(int n)
{
    int selection;
    cout<<"Enter number of People accompanying with you(maximum "<<n<<"): ";
    cin>>selection;
    while(selection<1||selection>n)
    {
        cout<<"Entry is Invalid!"<<endl;
        cout<<"Enter number of People accompanying with you(maximum "<<n<<"): ";
        cin>>selection;
    }
    return selection;                 
}
/* module for menu */
int mymenu()
{
    int selection;
    cout<<"Enter selection"<<endl;
    cout<<"1 - add passengers"<<endl;
    cout<<"2 - show seat selection"<<endl;
    cout<<"3 - quit"<<endl;
    cout<<">> ";
    cin>>selection;
    return selection;
}
/* module for first class */
void firstclass(char f[][4])
{
    int selection,number,i1,j1,k1,s1;
    int aisleseat[2][2]={1,2,0,4};
    bool isfound;
    number=passengerstraveling(2);
    for(i1=1;i1<=number;i1++)
    {
        cout<<"passenger "<<i1<<endl<<"enter seat selection : ";
        s1=seatselection(0);
        isfound=false;
        j1=-1;
        while(!isfound&&j1<4)
        {
            j1++;
            for(k1=0;k1<2&&!isfound;k1++)
                if(f[j1][aisleseat[s1][k1]]=='-')
                {
                    f[j1][aisleseat[s1][k1]]='X';
                    isfound=true;
                }
        }
        if(isfound)
            cout<<"seat is found in row "<<j1+1<<endl;
        else
            cout<<"seat not is found"<<endl;
    }
}
/* module for economy class */
void economyclass(char e[][6])
{
    int selection,number,i1,j1,k1,s1;
    bool isfound;
    int aisleseat[3][2]={2,3,1,4,0,5};
    number=passengerstraveling(3);
    for(i1=1;i1<=number;i1++)
    {
        cout<<"passenger "<<i1<<endl<<"enter seat selection: ";
        s1=seatselection(1);
        isfound=false;
        j1=-1;
        while(!isfound&&j1<29)
        {
            j1++;
            for(k1=0;k1<2&&!isfound;k1++)
            {
                if(e[j1][aisleseat[s1][k1]]=='-')
                {
                    e[j1][aisleseat[s1][k1]]='X';
                    isfound=true;
                }
            }
        }
        if(isfound)
            cout<<"seat found in row "<<j1+6<<endl;
        else
            cout<<"seat is not found ";
    }
}
/* module for seat selection */
int seatselection(int n)
{
    int selection=0;
    string message[3]={"seataisle","seatwindow","seatcenter"};
    int myorder[2][3]={0,1,0,0,2,1};
    int maxi[2]={2,3};
    int i1,j1;
    while(selection<1||selection>maxi[n])
    {
        cout<<"enter seat selection"<<endl;
        for(i1=0;i1<maxi[n];i1++)
            cout<<i1+1<<" - "<<message[myorder[n][i1]]<<endl;
            cout<<">> ";
            cin>>selection;
        if(selection<1||selection>maxi[n])
            cout<<"invalid entry"<<endl;
    }
    return selection-1;
}
/* module for printing result */
void printresult(char f[][4],char e[][6])
{
    int i1,j1;
    cout <<"Seating"<<endl<<"X=assigned seat"<<endl<<"-=unassigned seat"<<endl<<endl;
    for(i1=0;i1<5;i1++)
    {
        cout<<" ";
        for(j1=0;j1<4;j1++)
        {
            cout<<f[i1][j1]<<" ";
            if(j1==1)
                cout<<"   ";
        }
        cout<<endl;
    }
    for(i1=0;i1<30;i1++)
    {
        for(j1=0;j1<6;j1++)
        {
            cout<<e[i1][j1]<<" ";
                if(j1==2)
                    cout<<"   ";
        }
        cout<<endl;
    }
}

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