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template <class T>class Set{public:	Set(int = 20); 	~Set() { delete [] setPtr ; }	int insert(const T&);	void print();    Set<T>* unionSet(void*);	Set<T> intersectSet(Set<T>);private:	T* setPtr;  	int pos;	int length;};template <class T>Set<T>::Set(int s){	length = s;	setPtr = new T[length]; 	pos = 0;}template <class T>int Set<T>::insert(const T& item){	T temp;	if(pos == length)	{		T *temp2 = new T[length];		for (int i = 0; i < length; i++)			temp2[i] = setPtr[i];		delete [] setPtr;		T *setPtr = new T[length+10];		for (int j = 0; j < length; j++)			setPtr[j] = temp2[j];				delete [] temp2;		length += 10;	}	int i = 0;	while(temp = setPtr[i++])		if(temp == item)			return 0;	setPtr[pos++] = item;	int j;	T index;	for (i=0; i < pos; i++){		index = setPtr[i];		j = i;		while ((j > 0) && (setPtr[j-1] > index)){			setPtr[j] = setPtr[j-1];			j--;		}		setPtr[j] = index;	}	return 1;}template <class T>Set<T> Set<T>::intersectSet(Set<T> inter){	}template <class T>Set<T>* Set<T>::unionSet(void* unioned){	Set<T> *temp = (Set<T>*)unioned;	for(int i=0; i < pos; i++){		temp->insert(setPtr[i]);	}		return temp;}template <class T>void Set<T>::print(){		int i = 0;	while(i < pos){		cout << setPtr[i] << " ";		i++;	}	cout << endl;}