直接使用devstack在ubuntu14.04中搭建单节点的openstack
使用keystone命令查询租户和...
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其他好文 时间:
2014-07-14 13:55:14
阅读次数:
237
Red and BlackProblem DescriptionThere is a rectangular room, covered with square tiles. Each tile is colored either red or black. A man is standing on...
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其他好文 时间:
2014-07-13 13:10:07
阅读次数:
220
从命令行执行django数据库操作,报错:
django.core.exceptions.ImproperlyConfigured: Requested setting DEFAULT_INDEX_TABLESPACE, but settings are not configured. You must either define the environment variable DJANGO_SETTINGS_MODULE or call settings.configure() before acce...
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数据库 时间:
2014-07-08 17:57:04
阅读次数:
495
You are climbing a stair case. It takes n steps to reach to the top.Each time you can either climb 1 or 2 steps. In how many distinct ways can you cli...
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其他好文 时间:
2014-07-07 21:03:15
阅读次数:
157
一般使用weka进行数据挖掘的时候会碰到两个问题,一是内存不够,二是libsvm使用不了,这时就需要重新配置RunWeka.ini文件,解决上述问题。查看RunWeka.ini原文如下: 1 # Contains the commands for running Weka either with a...
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其他好文 时间:
2014-07-07 17:05:42
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234
Export aborted because fatal lint errors were found.These are listed in the Problems view.Either fix these before running Export again,or turn off "Ru...
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移动开发 时间:
2014-07-06 14:23:18
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363
You are climbing a stair case. It takes n steps to reach to the top.
Each time you can either climb 1 or 2 steps. In how many distinct ways can you climb to the top?
有f(n) = f(n - 1) + f(n...
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其他好文 时间:
2014-07-04 08:39:44
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304
MatrixTime Limit:3000MSMemory Limit:65536KDescriptionGiven an N*N matrix A, whose elements are either 0 or 1. A[i, j] means the number in the i-th row...
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其他好文 时间:
2014-07-01 21:17:23
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190
题目
Given a m x n grid filled with non-negative numbers, find a path from top left to bottom right which minimizes the sum of all numbers along its path.
Note: You can only move either down...
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其他好文 时间:
2014-06-30 11:10:34
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211
Eclipse中SVN插件常遇到的异常:Subclipse talks to Subversion via a Java API that requires access to native libraries.Those libraries where either not found or an...
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其他好文 时间:
2014-06-27 21:03:57
阅读次数:
264