Floyd's Cycle Detection Algorithm

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Floyd's Cycle Detection Algorithm

Floyd's Cycle Detection Algorithm http://www.siafoo.net/algorithm/10 改进版: http://www.siafoo.net/algorithm/11…

Floyd判圈算法 Floyd Cycle Detection Algorithm

2018-01-13 20:55:56 Floyd判圈算法(Floyd Cycle Detection Algorithm),又称龟兔赛跑算法(Tortoise and Hare Algorithm),是一个可以在有限状态机.迭代函数或者链表上判断是否存在环,求出该环的起点与长度的算法.该算法据高德纳称由美国科学家罗伯特·弗洛伊德发明,但这一算法并没有出现在罗伯特·弗洛伊德公开发表的著作中. 如果有限状态机.迭代函数或者链表上存在环,那么在某个环上以不同速度前进的2个指针必定会在某个时刻相遇.同…

anomaly detection algorithm

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MBMD（MobileNet-based tracking by detection algorithm）作者答疑

If you fail to install and run this tracker, please email me (zhangyunhua@mail.dlut.edu.cn) Introduction This repository includes tensorflow code of MBMD (MobileNet-based tracking by detection algorithm) for VOT2018 Long-Term Challenge. The correspon…

Floyd Cycle Detection

Floyd判圈算法能在O(n)时间复杂度内判断迭代函数或链表中是否有环,并求出环的长度与起点判断环存在通常采用快慢指针的方式来判断环是否存在从绿色起点G开始,快指针每次走2步,慢指针每次走1步,当链表未遍历完且快慢指针相遇且时说明链表中存在环很容易证明:假定链表存在环,那么快慢指针一定会在环内打转,由于存在速度差,则快慢指针一定会相遇环的长度若快指针和慢指针在环上的红点R第一次相遇, 则让快指针不动,慢指针继续走并同时从0开始记录步数,则再次相遇时,步数即为环的长度环的起点存在环…

SGU 455 Sequence analysis（Cycle detection，floyd判圈算法）

题目链接:http://acm.sgu.ru/problem.php?contest=0&problem=455 Due to the slow 'mod' and 'div' operations with int64 type, all Delphi solutions for the problem 455 (Sequence analysis) run much slower than the same code written in C++ or Java. We do not gua…

[SimHash] the Hash-based Similarity Detection Algorithm

The current information explosion has resulted in an increasing number of applications that need to deal with large volumes of data. While many of the data contains useless redundancy data, especially in mass media, web crawler/analytic fields, waste…