Codeforces Round #267 (Div. 2) D. Fedor and Essay tarjan缩点

D. Fedor and Essaytime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputAfter you had helped Fedor to
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activiti-explorer disable demo

https://community.alfresco.com/thread/203012-activiti-explorerengine.properties# demo data propertiescreate.demo.users=falsecreate.demo.definitions=fa
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same-tree——比较两个二叉树是否相同

Given two binary trees, write a function to check if they are equal or not.Two binary trees are considered equal if they are structurally identical an
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System.ArgumentException: 已添加了具有相同键的项。(An item with the same key has already been added) 在 System.Collections.Generic.Dictionary`2.Insert(TKey key, TValue value, Boolean add) 在 System.Web.Mvc.Js

最近将一个项目从ASP.NET MVC 3升级至刚刚发布的ASP.NET MVC 5.1,升级后发现一个ajax请求出现了500错误,日志中记录的详细异常信息如下:System.ArgumentException: 已添加了具有相同键的项。(An item with the same key has
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[React Native] Disable and Ignore Yellow Box Warnings in React Native

Yellow box warnings in react native can be intrusive. We will use console.disableYellowBox to disable the yellow box entirely. We'll also us
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2555: SubString[LCT+SAM]

2555: SubString Time Limit: 30 Sec  Memory Limit: 512 MBSubmit: 2601  Solved: 780[Submit][Status][Discuss]Desc
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最小割 D. Behind the Wall Samara University ACM ICPC 2016-2017 Quarterfinal Qualification Contest

题目链接:http://codeforces.com/gym/101149/problem/D 题目大意:堡垒受到攻击。堡垒是n*m的矩阵,矩阵里刚开始都是平地,然后那个数值表示在当前平地上建一面墙需要a[i][j]的时间。目前我们在位置(r, c),我们找一种方法,把(r,c)全部围起来
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几何+思维 Samara University ACM ICPC 2016-2017 Quarterfinal Qualification Contest K. Revenge of the Dragon

题目链接:http://codeforces.com/gym/101149/problem/K 题目大意:给你两个点a,b。一个人在a点,一个人在b点,b点的人要追杀a的点,他的跑步速度是a的两倍。如果a点的人能在b点追击到之前回到a点这个位置,那么这个人就是安全的(b点的人追击a点的人的
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最短路+找规律 Samara University ACM ICPC 2016-2017 Quarterfinal Qualification Contest L. Right Build

题目链接:http://codeforces.com/gym/101149/problem/L 题目大意:有n个点(其实是n+1个点,因为编号是0~n),m条有向边。起点是0,到a和b两个节点,所经过的最少的节点的数目是多少?(a和b也算,0不算) 思路:真的是想了半天了,不知道
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贪心+离散化+线段树上二分。。。 Samara University ACM ICPC 2016-2017 Quarterfinal Qualification Contest G. Of Zorcs and Axes

题目链接:http://codeforces.com/gym/101149/problem/G 题目大意:给你n对数字,为(a[i], b[i]),给你m对数字,为(w[i], c[i])。给n对数字找配对,这个配对必须是m中的,而且m中的每个只能和n中的配对一次。配对条件,w[i]>
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