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#ifndef PERSON_H
#define PERSON_H
struct PersonRec
{
char name[20];
int bribe;
PersonRec* link;
}
;
class PersonList {
public:
PersonList();
~PersonList();
void ViewList();
void AddToList ();
private:
PersonRec* head;
void Advance(PersonRec*);
void Reset(PersonRec*);
void PrevPtr(PersonRec*);
PersonRec* InsertBefore(PersonRec*,PersonRec*,PersonRec**);
void InsertAfter(PersonRec*,PersonRec*);
PersonRec* CurrRec();
/*
insert here other private member functions as you
see the need for them. However, you cannot add
any additional member variables or public
member functions than the four listed above
*/
};
#endif
//Here are my functions:
#include "personlist.h"
#include <iostream>
using namespace std;
PersonList::PersonList()
{
head=NULL;
}
PersonList::~PersonList()
{
for(head;head!=NULL;head=head->link)
{
delete head;
}
}
PersonRec* PersonList::InsertBefore(PersonRec* aPtr,PersonRec* currPtr, PersonRec** currPtr2)
{
PersonRec ** headPointer=&head;
PersonRec *temp = new PersonRec;
temp->bribe = currPtr->bribe;
temp->link = currPtr->link;
currPtr= aPtr;
currPtr->link=temp;
**currPtr2=*aPtr;
currPtr2=&(head->link);
**currPtr2=*currPtr;
**currPtr2=**headPointer;
return currPtr;
}
void PersonList::InsertAfter(PersonRec* a,PersonRec* b)
{
}
void PersonList::Reset(PersonRec* a)
{
a=head;
}
void PersonList::ViewList()
{
if(head==NULL)
{
cout<<"The list is empty. "<<endl;
}
else if(head!=NULL)
{
for(head;head!=NULL;head=head->link)
{
for(int x=0;x<20;x++)
{
cout<<head->name[x];
}
cout<<" "<<head->bribe;
}
}
}
void PersonList::Advance(PersonRec* currPtr)
{
currPtr=currPtr->link;
}
void PersonList::AddToList()
{
PersonRec* aPtr=new PersonRec;
PersonRec** theHead=&head;
char aName[20];
int aBribe;
cout << "\nEnter the person's name: ";
cin.getline(aName, 20);
cout<< "\nEnter the person's contribution: ";
cin >> aBribe;
aPtr->bribe=aBribe;
for(int x=0;x<20;x++)
{
aPtr->name[x]=aName[x];
}
PersonRec* currPtr=new PersonRec;
PersonRec** currPtr2=&head;
currPtr=head;
if(head!=NULL)
{
while(currPtr!=NULL)
{
if(currPtr->bribe < aPtr->bribe)
{
PersonRec *Checker=InsertBefore(aPtr,currPtr,currPtr2);
cout<<Checker->bribe<<endl;
cout<<Checker->name[0];
cout<<Checker->name[1];
cout<<head->bribe<<endl;
cout<<head->name[0];
cout<<head->name[1];
currPtr=NULL;
}
else if(currPtr->bribe > aPtr->bribe)
{
Advance(currPtr);
}
}
}
else
{
head=aPtr;
//head->link=NULL;
}
currPtr2=theHead;
}
//Here is my driver.
#include "PersonList.h"
#include <iostream>
using namespace std;
int displayMenu (void);
void processChoice(int, PersonList&);
int main ( )
{
int num;
PersonList myList;
do
{
num = displayMenu();
if (num != 3)
processChoice(num, myList);
} while (num != 3);
return 0;
}
int displayMenu (void)
{
int choice;
cout << "\nMenu\n";
cout << "==============================\n\n";
cout << "1. Add student to waiting list\n";
cout << "2. View waiting list\n";
cout << "3. Exit program\n\n";
cout << "Please enter choice: ";
cin >> choice;
cin.ignore();
return choice;
}
void processChoice(int choice, PersonList& p)
{
switch (choice)
{
case 1: p.AddToList();
break;
case 2: p.ViewList();
break;
}
}
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