{
class stack
{
private int p_index;
private ArrayList list;
public stack()
{
p_index = -1;
list = null;
}
public object pop(object item)
{
object topItem = list[p_index];
list.Remove(topItem);
p_index--;
return topItem;
}
public void Push(object item)
{
list.Add(item);
p_index++;
}
public int count()
{
if (p_index < 0)
return 0;
else
return p_index;
}
static void Main()
{
stack myStack = new stack();
stack othStack=new stack();
string myString = "sees";
bool isRerverse;
int pos=0;
for (int x; x < myString.Length; x++)
myStack.Push(myString.Substring(x,1));
while (myStack.count() > 0)
{
string ch = myStack.pop().ToString();
if (ch != myString.Substring(pos, 1))
{
isRerverse = false;
break;
}
pos++;
}
}
}
}