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83. Remove Duplicates from Sorted List
public ListNode DeleteDuplicates(ListNode head) { if(head == null) return head; ListNode dn= head; while((head != null)&&(head.next!= null)) { if(head.next.val == head.val) { head.next = head.next.next; } else { head = head.next; } } return dn; }
Given a sorted linked list, delete all duplicates such that each element appear only once.
For example,
Given 1->1->2
, return 1->2
.
Given 1->1->2->3->3
, return 1->2->3
.
83. Remove Duplicates from Sorted List
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