public void Pop()
{
if (data == null)
{
return;
}
data = data.next;
}
public void Push(int x)
{
if (data == null)
{
data = new ListNodeMin(x, x, null);
}
else
{
data = new ListNodeMin(x, Math.Min(data.min, x), data);
}
}
public ListNodeMin(int x, int m, ListNodeMin n)
{
val = x; min = m; next = n;
}
