摘要：
Find the Duplicate NumberGiven an arraynumscontainingn+ 1 integers where each integer is between 1 andn(inclusive), prove that at least one duplicate ... 阅读全文
摘要：
Reverse Linked List IIReverse a linked list from positionmton. Do it in-place and in one-pass.For example:Given1->2->3->4->5->NULL,m= 2 andn= 4,return... 阅读全文