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#include <iostream>
#include <string>
#include <vector>
using namespace std;
////////////////////////////////////////////////////////////////
class Person
{
public:
int priority;
string lastName;
string firstName;
int socialsecurity;
int age;
//--------------------------------------------------------------
Person(int p, string last, string first, int a, int ss) : lastName(last), firstName(first), age(a), socialsecurity(ss), priority(p)
{ }
//--------------------------------------------------------------
void displayPerson()
{
if (priority ==1)
{
cout<<"!! Patient needs iImmediate Attention! !! \n";
}
else if(priority ==2)
{
cout<<"!! Patient needs Rapid Intervention! !! \n";
}
else if(priority ==3)
{
cout<<"!! Patient with Significant but non life-threatening injuries !! \n";
}
else if(priority ==4)
{
cout<<"!! Patient with Minor Interventions | Not Urgent !! \n";
}
cout<<"{ \n";
cout << "Social Security #: '" <<socialsecurity<<"' \n";
cout << "First name: '" <<firstName<<"' \n";
cout << "Last name: '" <<lastName<<"' \n";
cout << "Age: '" <<age<<"' \n";
}
//--------------------------------------------------------------
}; //end class Person
////////////////////////////////////////////////////////////////
class PriorityP
{
private:
int maxSize; //size of stack vector
vector<Person*> queVect; //stack vector
int nItems;
public:
//--------------------------------------------------------------
PriorityP(int s) : maxSize(s), nItems(0) //constructor
{
queVect.resize(maxSize); //size the vector
}
//--------------------------------------------------------------
void insert(int p, string last, string first, int a, int ss) //insert item
{
int j;
if (isFull())
{
cout<<"Woah! Queue is FULL! \n The data entered could not be inserted! \n";
return;
}
else
{
if(nItems==0) //if no items,
{
queVect[nItems++] = new Person(p, last, first, a, ss); //insert at 0
}
else //if items,
{
if(nItems==0) //if no items,
{
queVect[nItems++] = new Person(p, last, first, a, ss); //insert at 0
}
else //if items,
{
for(j=nItems-1; j>=0; j--) //start at end,
{
if( p > queVect[j] ) //if new item larger,
{
queVect[j+1] = queVect[j]; //shift upward
}
else //if smaller,
break; //done shifting
} //end for
queVect[j+1] = new Person(p, last, first, a, ss); //insert it
nItems++;
} //end else (nItems > 0)
}
} //end if (wrap-around)
} //end insert()
//-------------------------------------------------------------
double remove() //remove minimum item
{
if (isEmpty())
{
cout<<"Database is EMPTY!"<<endl;
return false;
}
else
{
queVect[--nItems];
}
}
//-------------------------------------------------------------
double peekMin() //peek at minimum item
{
queVect[nItems-1];
}
//-------------------------------------------------------------
double peekMax() //peek at minimum item
{
queVect[nItems=0];
}
//-------------------------------------------------------------
bool isEmpty() //true if queue is empty
{
return (nItems==0);
}
//-------------------------------------------------------------
bool isFull() //true if queue is full
{
return (nItems == maxSize);
}
//-------------------------------------------------------------
void showmenu() //show menu to help user navigate through program
{
cout<<"Please select from one of the options below to continue \n"
<<"1. Insert patient by Priority \n"
<<"2. Patient next in line for medical inspection \n"
<<"3. Checking patient Priority \n"
<<"4. Exit program \n"<<endl;
}
//-------------------------------------------------------------
void prioritydet() //showing priority to user when entering patient into program
{
cout<<"List for priority to be determined \n"
<<"Please select from the list below \n"
<<"1. Immediate Attention! | Life-threatening \n"
<<"2. Rapid Intervention | Urgent | Close Monitoring \n"
<<"3. Significant but non life-threatening | Less Urgent \n"
<<"4. Minor Intervention | Not Urgent \n";
}
//-------------------------------------------------------------
}; //end class PriorityQ
////////////////////////////////////////////////////////////////
int main()
{
double p;
string last;
string first;
int a;
int s;
int ss;
int choice1, choice2;
cout<<"Welcome to the Priority Queues Program \n Let's BEGIN ---> \n How much data do you want to enter overall in the database? \n";
cout<<"Please state size of database below:\n ";
cin>>s;
PriorityP thePQ(s); //priority queue, size stated by user
cout<<"Thank you \n Preparing the database for you, please wait... \n";
cout<<endl;
cout<<endl;
cout<<endl;
cout<<endl;
cout<<endl;
thePQ.showmenu();
cin>>choice1;
while (choice1 != 4)
{
switch (choice1)
{
case 1: //INSERTING PATIENT INTO PROGRAM, PRIORITY IS STATED BY USER AND SORTED BY PROGRAM
cout<<"Please insert the priority of the patient \n"<<endl;
thePQ.prioritydet();
cout<<endl;
cin>>p;
cout<<"Please insert the patient's first name \n";
cin>>first;
cout<<"Please insert the person's last name \n";
cin>>last;
cout<<"Please insert the patient's age \n";
cin>>a;
cout<<endl;
thePQ.insert(p, last, first, a, ss);
cout<<"Please wait while the information is being stored in the database...\n \n \n Thank you \n";
thePQ.showmenu();
cin>>choice1;
break;
case 2: //REMOVING PATIENT BY PRIORITY
cout<<"Please wait while the next patient profile loads \n"
<<" \n"
<<" \n"
<<" \n"
<<"Thank you for waiting \n";
cout<<"Next patient in line is... \n";
cout<<"{ "<<thePQ.peekMax()<<"} \n";
thePQ.remove();
thePQ.showmenu();
cin>>choice1;
break;
case 3://CHECKING PATIENT BY PRIOROTY
cout<<"Press #1 to check the patient next in line with the least priority \n \n OR \n \n Press #2 to check the patient who is next in line and needs urgent attention \n";
cin>>choice2;
if (choice2 == 1)
{
cout<<"The patient next in line with the least priority is: \n";
cout<<"{ "<<thePQ.peekMin()<<" }\n";
break;
}
else if (choice2 == 2)
{
cout<<"The patient next in who needs urgent attention is: \n";
cout<<"{ "<<thePQ.peekMax()<<" }\n";
break;
}
thePQ.showmenu();
cin>>choice1;
break;
default: cout<<"Am sorry \n that was not an option, please try that again \n";
}
}
cout<<"Goodbye \n";
cout << endl;
return 0;
} //end main()
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