Given a singly linked list with n nodes (n is not given), you are asked to check whether there is a loop in the linked list. Can you design a program to do that with constant number of extra memories (independent of n) and O(n) in time? The linked list is read-only.
哈哈哈哈 O(∩_∩)O哈哈~ 好久不来了，不小心看了一眼自己主页，发现自动关联了自己以往发过的帖，点进这个看了一眼，笑个半死。。。敢情我当初还发过这么搞笑的东西啊，我自己完全不记得了 
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发表于 2005-12-18 22:55:57
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