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i have a problem regarding classes . i have been given two files vector.h and set.h

the vector.h file is :

```
#ifndef VECTOR_H
#define VECTOR_H
class vector{
private:
int *array;
int max_size; //max size of vector
int elements; //total element in vector
public:
//initializes everything to zero/null
DefaultVector();
//initializes the max_size to size and allocates this amount of memory
Loadedvector(int size);
//initializes the max_size to size and allocates this amount of memory and initializes every element to initial value
Loadedvector(int size, int &initialValue);
//delete the vector
DeleteVector();
//returns the max_size
int capacity() const;
//returns the no of elements
int size() const;
//true if empty otherwise false.empty means elements=0
bool Isempty() const;
//resizes it to the size passed as parameter and preserves old elements
void resize(int size);
//deletes last element of vector
bool deleteElement();
//add the element at the end if the vector is full call resize.
bool addElement(int data);
// return array[index]
int& returnElement (int index);
//Vector1=Vector2
vector& Assign(vector &obj);
};
#endif
```

i have implemented all the functions in vector.h ,,..

the set.h file is :

```
#ifndef SET_H
#define SET_H
//NOTE:
//implement the following fuctions by using vector functions
//DO NOT REPEAT THE CODE THAT YOU HAVE ALREADY WRITTEN IN VECTOR FUNCTIONS
//so implement the following fuctions by using vector functions
class Set
{
private:
vector *V;
public:
//return true if set is empty otherwise false
bool IsEmpty( ) ;
//add the new element.if set is full then resize it and add the element
void InsertElement(const int & element) ;
//display the array
void Print( ) ;
//read the Set from file and return
//format element1,element2,element3,........
//one file will have one array
Set Read( string filename ) ;
//Set1=Set2;
Set & Assign ( const Set & S);
//Set1 union Set2
Set & Union (Set& S);
//Set1==Set2
//return true if sets are equal otherwise false
bool IsEqual (Set& Set2);
//Set1-Set2
SET & Sub (Set& Set1);
//Set1 intersection Set2
SET & Intersect (Set & Set2);
//return index number of the element
int Find (const int & element);
//sort the set in increasing order
void SortSet(Set & Set);
//return the the elements inbetween Min and Max otherwise empty set.you have to use SortSet function
Set WithInRange ( const int & Min,const int & Max);
//return index number of the element that is before the e.you have to use find function
//return -1 if not found
int Before (const int & e);
//return index number of the element that is after the e.you have to use find function
//return -1 if not found
int After ( const int & e);
//delete the set
void deleleSet();
//you can add your helping functions here....
};
#endif
```

it says that implement the following functions using the vector functions .. now this is a confusing part for me .. please help me with this ..

*Edited 3 Years Ago by waqas.zafar.125*