private void button12_Click(object sender, EventArgs e)
{
ListNode node = new ListNode(1);
ListNode node2 = new ListNode(2);
ListNode node3 = new ListNode(2);
ListNode node4 = new ListNode(3);
node.next = node2;
node2.next = node3;
node3.next = node4;
node4.next = null;
//travelList(node);
ListNode result = DeleteDuplicates(node);
}
public ListNode ReverseList(ListNode head)
{
if (head == null)
{
return null;
}
return head;
}
public void travelList(ListNode node)
{
while (node.next != null)
{
node = node.next;
int i = node.val;
}
}
public ListNode DeleteDuplicates(ListNode head)
{
if (head == null)
{
return null;
}
ListNode tempNode = head;
while (head.next != null)
{
if (head.val == head.next.val)
{
head.next = head.next.next;
}
else
{
head = head.next;
}
}
return tempNode;
}
