19. Remove Nth Node From End of List
2017-09-23 01:30
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public class Solution { public ListNode removeNthFromEnd(ListNode head, int n) { ListNode pre=new ListNode(0); pre.next=head; ListNode p=pre,q=pre; for(int i=0;i<n;i++) p=p.next; while(p.next!=null) { p=p.next; q=q.next; } q.next=q.next.next; return pre.next; } }
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