可恶，竟然连题目都无法正确拼出 可以用四个变量来表示左上左下右上右下的最大数（附加以绝对值化简 由于如果非法会数值偏小直接忽略所以不用管，把每一段$a$数组相等的先查找再修改即可。 Code #include<cstring> #include<cstdio> #include<iostream> ...
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2021-07-12 20:29:00
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传送门 赛时靠spfa求最长路骗了30pts spfa的时间复杂度是$O(k|E|)$，不是$O(k|N|)$！ dijkstra 时间复杂度$O((n+m)logn)$ 特别注意这两个的复杂度都和边数密切相关 spfa的话按a值分层，按层建边即可 正解是个dp，考场上想到dp，但dp思路错了 令$ ...
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2021-07-11 18:58:00
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背景介绍当土壤中病原体入侵时，植物可以动态调节其根际微生物并适应这种生物胁迫。植物招募的保护性微生物群落中通常包含一些低丰度的类群，其作用尚不清楚。本研究首先分析了健康和患病黄芪之间根系微生物群落结构的差异，依据患病黄芪根部的低丰度细菌构建了一个简化合成群落，该群落可起到抑制病原菌生长与触发黄芪的宿主植物诱导的系统抗性反应（ISR）的作用，实现降低根腐病发病率的目的。实验设计首先分离纯化黄芪根腐病
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2023-08-28 14:58:57
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https://apcentral.collegeboard.org/courses/ap-biology/classroom-resources/great-books-list 'Great Books' List Print this page beginning of content: Co ...
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2021-07-28 19:59:00
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Pre-lab Reading The circulatory system consists of three general parts: a pump (heart), tubes (blood vessels), and fluid (blood). The function of the
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2020-09-18 01:29:00
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Pre-lab Reading How you relate to the world is in large part a reaction to sensory input from the world around you, such as what you see, hear, smell,
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2020-09-25 06:48:00
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题目大意：n个字符串，m个操作，可以插入字符串，也可以询问某T个字符串的最长后缀 题解：Trie+lca Trie树的插入与查询操作。把字符串反转就相当于求公共前缀。 lca的深度就是公共前缀的长度。 代码： //biology include<iostream> #include<cstring>
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2017-10-19 19:34:00
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Have you ever taken a moment to ask yourself why you breathe in oxygen? Or why you breathe more heavily after exercise?The simple answer is that you n
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2020-09-03 07:43:00
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Pre-lab Reading In lecture you have already discussed, or will soon discuss, the subject of conservation biology (Chapter 38 in your textbook). Conser
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2020-11-04 13:28:00
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题解 首先对 \(a\) 离散化，则可推出转移方程 \[ dp_{i,j}=\max\{ (a_{i,j}=a_{{i^{'}},{j^{'}}}+1) \] 其中按离散化后 \(a\) ...
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2021-07-11 18:38:00
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Pre-lab ReadingActivity 1: Calories In, Calories Out There have been several highly publicized diet programs (such as the low-carb diet) that claim to
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2020-10-09 01:46:00
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Part 2: Quantitative and Qualitative Data CollectionHow Do You Relate Glucose, Weight Loss, and Carb Cutter? As an intrepid reporter for the Broadside
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2020-09-29 14:57:00
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Problem DescriptionAfter getting 600 scores in NOIP ZYB(ZJ−267) begins to work with biological questions.Now he give you a simple biological questions...
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2015-12-10 19:05:00
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Problem DescriptionAfter getting 600600 scores in NOIPNO
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2022-11-09 18:57:20
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Lecture 8 - Transcription 转录
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\(solution\) 怎么说这次考试考得一点也不好，别问为什么，就是没考好 而且听说，我们上一届师兄考这个题，一模一样的，有人$AK$ 而我只有$130pts$，是我菜了 上来先干的第一题，然后干了半天，打出来一个背包，然后 \(TLE\) \(70pts\) 这是我第一次栽在这么简单的题上，而 ...
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2021-07-11 18:52:00
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Lecture 10 - Translation 翻译
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2023-03-15 09:02:46
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Lecture 7 - Replication 复制
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2023-05-08 16:18:00
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Objective 1: Use a qualitative method to determine whether starch is present in four solutions [A–D] and, if so, the relative concentration of starch
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2020-10-09 04:06:00
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核酸 nucleic acids
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2023-03-06 09:47:22
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