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DAWG, 一种特殊的自动机(Directed Acyclic Word Graph),可以接受一个字符串w的所有子串,而且状态只有O(n)个,其中n是w的长度。 一个单词的end-set是他在w中出现位置的右端点集合。 任意两个节点的end-set要么不相交,要么其中一个是另一个的子集。因此可以得 阅读全文
posted @ 2018-11-05 11:14
wyboooo
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Sunscreen Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 11772 Accepted: 4143 Description To avoid unsightly burns while tanning, each of 阅读全文
posted @ 2018-11-03 17:32
wyboooo
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DNA Sequence Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 19991 Accepted: 7603 Description It's well known that DNA Sequence is a sequen 阅读全文
posted @ 2018-11-03 10:38
wyboooo
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Exponentiation Time Limit: 500MS Memory Limit: 10000K Total Submissions: 183034 Accepted: 44062 Description Problems involving the computation of exac 阅读全文
posted @ 2018-11-02 20:53
wyboooo
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病毒侵袭持续中 Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 19553 Accepted Submission(s): 6409 Proble 阅读全文
posted @ 2018-11-02 20:23
wyboooo
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Keywords Search Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 79383 Accepted Submission(s): 2 阅读全文
posted @ 2018-11-02 17:27
wyboooo
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病毒侵袭 Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 37730 Accepted Submission(s): 8348 Problem D 阅读全文
posted @ 2018-11-02 17:24
wyboooo
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Treasure Hunt Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 8192 Accepted: 3376 Description Archeologists from the Antiquities and Curios 阅读全文
posted @ 2018-11-02 15:09
wyboooo
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含极角序排序模板。 Space Ant Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 5334 Accepted: 3312 Description The most exciting space discovery occur 阅读全文
posted @ 2018-11-01 21:21
wyboooo
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Kadj Squares Time Limit: 2000MS Memory Limit: 65536K Total Submissions: 3594 Accepted: 1456 Description In this problem, you are given a sequence S1, 阅读全文
posted @ 2018-11-01 15:58
wyboooo
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题目描述 最近 \text{lxhgww}lxhgww 又迷上了投资股票,通过一段时间的观察和学习,他总结出了股票行情的一些规律。 通过一段时间的观察,\text{lxhgww}lxhgww 预测到了未来 TT 天内某只股票的走势,第 ii 天的股票买入价为每股 AP_iAPi,第 ii 天的股票 阅读全文
posted @ 2018-11-01 14:04
wyboooo
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