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c++ bubble sort help!

rb26dett26 (16)
Im trying to figure out how to do a bubble sort with the program i have created. My program needs to get the dates from the text file and if it finds two of the same date, it needs deletes one and keeps the other. I need to do a bubble sort so i can do something like if ( arr[i] == arr[i+1]) delete it and so forth.

What i dont know is how to set up the bubble sort as in what goes in the ( ) with the info that i have in my program

Any help would be appreciated.


here is my code

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#include <iostream>
#include <fstream>

using namespace std;
class DateType
{
public:   
          
  void readDate(ifstream &dates);
  void compareDate();           
  void printDate();
  bool  operator == ( DateType b);
   bool operator > ( DateType a);
   bool operator <( DateType c);

  
  
private:
        
    int month;
    int day;
    int year;
    
} ;

  void DateType :: readDate(ifstream &dates) // reads in the info from the text file and puts it into the array
  {
    
    
    
       
      dates >> month;
      dates >> day;
      dates >> year;
    
  }
  void DateType::compareDate( )
  { 
      
      
   }
   
  
  void DateType:: printDate(  )   // gets the info from readDate and prints out the dates in format
  {
  
      cout << month << "/" << day << "/" << year << endl;
    
  }
  
  
  
  
  
  
     bool DateType :: operator == ( DateType b)
  {
       printDate();
    if( year == b.year && month == b.month && day == b.day)
    return true;
    else
    return false;   
}   
   bool DateType :: operator >( DateType a)
  {
       printDate();
    if( year > a.year && month > a.month && day > a.day)
    return true;
    else
    return false;   
}   


bool DateType :: operator <( DateType c)
  {
       printDate();
    if( year < c.year && month < c.month && day < c.day)
    return true;
    else
    return false;   
}   
 



int main()
{   
    ifstream dates("dates.txt");
    
    
  DateType arr[20]; 
  DateType myDate;
 
 while (!dates.eof())
  {
  myDate.readDate(dates);
   myDate.printDate();
}
  
                         
  
     

  system("pause");
  return 0;
}


the compareDates is where i was planning on putting the bubblesort
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