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tstack cpp




/*
Stack <int> anIntegerStack;
anIntegerStack.push(5);
anIntegerStack.push(7);
if(anIntegerStack.isEmpty())
std::cout << "Stiva goala" << endl;
else
std::cout << anIntegerStack.pop() << endl;
std::cout << anIntegerStack.top() << endl;

*/



// tstack . h



#include <iostream>
using namespace std;

template <class T> class StackItem {
public:
 StackItem *Next;
 T *Data;
 StackItem(T __Data, StackItem <T> *__Next)
 {
  Data = new T(__Data);
  Next = __Next;
 }
};

template <class T> class Stack {
public:
 T pop()
 {
  T result = *(Data->Data);
  StackItem <T> *temp = Data;
  Data = Data->Next;
  delete temp;
  return result;
 }
 T top()
 {
  return *(Data->Data);
 }
 void push(T __Data)
 {
  Data = new StackItem <T>(__Data, Data);
 }
 int isEmpty()
 {
 return Data == 0;
}
 Stack()
 {
  Data = 0;
 }
private:
 StackItem <T> *Data;
};

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