private string Serialize(RemoveNthFromTheEnd.ListNode node)
{
if (node == null)
{
return(null);
}
var sb = new StringBuilder(node.val.ToString());
while (node.next != null)
{
sb.Append($"->{node.next.val}");
node = node.next;
}
return(sb.ToString());
}
public void NormalCases()
{
var list = new RemoveNthFromTheEnd.ListNode(1)
{
next = new RemoveNthFromTheEnd.ListNode(2)
{
next = new RemoveNthFromTheEnd.ListNode(3)
{
next = new RemoveNthFromTheEnd.ListNode(4)
{
next = new RemoveNthFromTheEnd.ListNode(5)
}
}
}
};
Assert.AreEqual("1->2->3->5", Serialize(RemoveNthFromTheEnd.Remove(list, 2)));
}
