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统计信息的备份恢复导入导出
Question:I want to understand when to export and import by dbms_stats statistics and learn when it is a good idea to export and import statistics.Answ...
分类:其他好文   时间:2014-07-23 22:29:17    阅读次数:322
LeetCode:Decode Ways
A message containing letters from A-Z is being encoded to numbers using the following mapping: 'A' -> 1 'B' -> 2 ... 'Z' -> 26 Given an encoded message containing digits, determine the total numb...
分类:其他好文   时间:2014-07-23 17:06:05    阅读次数:324
Why it is good practice to declare loggers private, static, and final?
// Jakarta Commons Loggingprivate static final Log log = LogFactory.getLog(MyClass.class);The above code also shows another good practice, which is to...
分类:其他好文   时间:2014-07-23 12:43:46    阅读次数:239
UVALive 5971
Problem J Permutation CountingDexter considers a permutation of first N natural numbers good if it doesn't have x and x+1 appearing consecutively, whe...
分类:其他好文   时间:2014-07-22 23:22:27    阅读次数:249
Feel Good (poj 2796)
题目大意就是在给出的串中找出一段连续数字,使得 这一段的和 乘上 这一段最小的数 的结果最大。可以用rmq做。每次区间找当中最小的数,算出值并记录位置。然后再递推它的左右区间。不过- -,一开始用深搜递推RE了。栈空间不够了,然后慢慢优化,最后还是ac了。貌似这一题是用单调栈做的,还可以用查并集做。...
分类:其他好文   时间:2014-07-22 22:41:53    阅读次数:280
gitlab放外网被挂马
现象,外网发包,流量暴涨 这个gitlab安全不? ?[20:20:49]?Warning:?Network?TCP?port?6667?is?being?used?by?/var/tmp/lib/init.?Possible?rootkit:?Possible?rogue?IRC?bot ????????...
分类:其他好文   时间:2014-07-22 08:16:37    阅读次数:294
背单词~~
handle*(n)把手,把柄 *(v)处理,解决Turn the Handle to open the door.oppose op=相反 +pose postion位置处于相反的位置或立场Thy boy opposes his father's smoking;he's always try.....
分类:其他好文   时间:2014-07-21 11:24:31    阅读次数:226
[ACM] POJ 2796 Feel Good (求序列中子序列的和与子序列中的最小数最大乘积)
Feel Good Time Limit: 3000MS   Memory Limit: 65536K Total Submissions: 9186   Accepted: 2509 Case Time Limit: 1000MS   Special Judge Description Bill is developi...
分类:其他好文   时间:2014-07-21 11:21:15    阅读次数:235
转自 Good morning 的几句精辟的话
1.志愿者招募 根据流量平衡方程来构图非常方便,而且简单易懂,以后可能成为做网络流的神法之一 简单记一下流量平衡方程构图法的步骤: a.列出需求不等式b.通过设置松弛变量,将不等式变成等式 c.两两相减,得到流量平衡方程 d.观察方程,>0表示得到的流量,0连(s,i,a[i]-a[i-1],0),...
分类:其他好文   时间:2014-07-21 08:13:05    阅读次数:219
【LeetCode】【Python题解】Reverse Integer
Reverse digits of an integer. Example1: x = 123, return 321 Example2: x = -123, return -321 click to show spoilers. Have you thought about this? Here are some good questions to ask before c...
分类:编程语言   时间:2014-07-20 22:12:03    阅读次数:251
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