Friday the ThirteenthIs Friday the 13th really an unusual event?That is, does the 13th of the month land on a Friday less often than on any other day ...
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其他好文 时间：
2014-11-30 13:49:01
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120
Given a binary tree, find the maximum path sum.The path may start and end at any node in the tree.For example:Given the below binary tree, 1 ...
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其他好文 时间：
2014-11-29 21:37:03
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330
配置等级策略，保证outside端口可以访问inside端口access-list 100 extended permit icmp any anyaccess-list 100 extended permit ip any anyaccess-group 100 in interface ou.....
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其他好文 时间：
2014-11-29 21:25:29
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325
四、动态ACL动态ACL是一种利用路由器telnet的验证机制，动态建立临时的ACL以让用户可以暂时访问内网的一种技术 命令：access-list {100-199} dynamic username [timeout minutes] permit any dest-ip dest-wild.....
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系统相关 时间：
2014-11-29 21:24:11
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200
Populating Next Right Pointers in Each Node IIFollow up for problem "Populating Next Right Pointers in Each Node".What if the given tree could be any ...
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其他好文 时间：
2014-11-29 11:45:49
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141
Don't Get RookedIn chess, the rook is a piece that can move any number of squares vertically or horizontally. In this problem we will consider small c...
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其他好文 时间：
2014-11-28 14:02:19
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179
Given a binary tree, find the maximum path sum.The path may start and end at any node in the tree.找树的最大路径和 注意路径可以从任意点起始和结束。我发现我真的还挺擅长树的题目的，递归不难。就是因为有个...
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其他好文 时间：
2014-11-27 23:24:02
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284
Binary Tree Maximum Path SumGiven a binary tree, find the maximum path sum.The path may start and end at any node in the tree.For example:Given the be...
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其他好文 时间：
2014-11-27 20:22:01
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181
准备工作先搭建一台DNS，创建3个域名[root@localhost~]#yuminstallbind*修改named.conf主配置文件listen-onport53{any;};allow-query{any;};zone"ccav.cn"IN{typemaster;file"ccav.cn.zone";};zone"ccav1.cn"IN{typemaster;file"ccav1.cn.zone";};zone"ccav2.cn"IN{typemaster;..
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其他好文 时间：
2014-11-27 18:51:01
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103
A robot is located at the top-left corner of a m x n grid (marked 'Start' in the diagram below).
The robot can only move either down or right at any point in time. The robot is trying to reach the ...
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编程语言 时间：
2014-11-27 12:53:47
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159
