#include
#define maks 5

using namespace std;

class Stack{
friend ostream& operator<<(ostream&, const Stack&);
public:
Stack();
int penuh(int s);
int kosong(int s);
void cetak();
void push(char);
char pop();
private:
char A[maks];
int banyak;
int s;
};

ostream& operator<<(ostream& out, const Stack& s)
{
cout<< "\nIsi Stack:";
for (int i=0; i out<< s.A[i]<<" ";
}

Stack::Stack(){
banyak=0;
for (int i=0; i A[i]='0';
}

int Stack::penuh(int s)
{
return s==maks ? 1:0; }

int Stack::kosong(int s)
{
return s==0?1:0; }

void Stack::cetak()
{
cout<< "\nIsi Stack :";
for (int i=0; i cout<< A[i]<<" "; }

void Stack::push(char x)
{
cout<< "\nElemen masuk :"< if (penuh(banyak))
cout<< "Stack penuh";
else if (A[0]=='0'){
A[0]=x;
banyak++; }
else{
for (int i=banyak; i>0; i--)
A[i+1]=A[i];
A[0]=x;
banyak++;}
}

char Stack::pop()
{
cout<< "\nPop stack, elemen yang di-pop :"<< A[0];
char temp=A[0];
for (int i=0; i A[banyak]='0';
banyak--;
return temp;
}

int main()
{
Stack stack;
for (char c='a'; c<'d'; c++){
stack.push(c);
stack.cetak();
}
char p=stack.pop();
stack.cetak();
cout<< "\n\nCetak pakai overloading :"<
system("pause");
return 0;
}