203. remove linked list elements

 * Definition for singly-linked list.
 * public class ListNode {
 *     int val;
 *     ListNode next;
 *     ListNode(int x) { val = x; }
 * }
 */
class  {
    public ListNode removeElements(ListNode head, int val) {
        ListNode curr = new ListNode(0);
      curr.next = head;
        ListNode root = curr;
        while (curr.next != null) {
            if (curr.next.val == val) {
             curr.next = curr.next.next;
          } else {
                curr = curr.next;
            }
        }
        return root.next;
    }
}