Remove Duplicates from Sorted List II(时间慢,空间70) 86. Partition List(没想明白一个解法为啥会造成循环)
61.RotateListMedium718874FavoriteShareGivenalinkedlist,rotatethelisttotherightbykplaces,wherekisnon-negative.Example1:Input:1->2->3->4->5->NULL,k=2Output:4->5->1->2->3->NULLExplanation:rotate1stepstot