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leetcode - N-Queens II
Follow up for N-Queens problem. Now, instead outputting board configurations, return the total number of distinct solutions. class Solution { private: int res; public: int totalNQuee...
分类:其他好文   时间:2014-10-26 15:43:03    阅读次数:168
leetcode - N-Queens
The n-queens puzzle is the problem of placing n queens on an n×n chessboard such that no two queens attack each other. Given an integer n, return all distinct solutions to the n-queens puzzle. ...
分类:其他好文   时间:2014-10-26 14:23:18    阅读次数:164
sicily 1172. Queens, Knights and Pawns
DescriptionYou all are familiar with the famous 8-queens problem which asks you to place 8 queens on a chess board so no two attack each other. In thi...
分类:其他好文   时间:2014-10-26 14:17:03    阅读次数:207
nova-api中ExtensionManager的构造
nova/api/openstack/__init__.pyAPIRouter类:def __init__(self, ext_mgr=None, init_only=None): if ext_mgr is None: if self.ExtensionManager: ...
分类:Windows程序   时间:2014-10-25 18:32:08    阅读次数:299
OpenStack之虚机热迁移
OpenStack之虚机热迁移 最近要搞虚机的热迁移,所以也就看了看虚机迁移部分的内容。我的系统是CentOS6.5,此处为基于NFS共享平台的虚机迁移。有关NFS共享服务器的搭建可以看这里。Yak shaving 1.设置nfs共享存储(/var/lib/nova/instances) 2....
分类:其他好文   时间:2014-10-21 21:12:08    阅读次数:218
[Leetcode] N-Queens
Then-queens puzzle is the problem of placingnqueens on ann×nchessboard such that no two queens attack each other.Given an integern, return all distinc...
分类:其他好文   时间:2014-10-18 07:33:43    阅读次数:263
[Leetcode] N-Queens II
Follow up for N-Queens problem.Now, instead outputting board configurations, return the total number of distinct solutions.Solution:N-Queens 问题的简化版。pu...
分类:其他好文   时间:2014-10-18 07:32:25    阅读次数:159
LeetCode--Combination Sum --ZZ
http://blog.csdn.net/linhuanmars/article/details/20828631这个题是一个NP问题,方法仍然是N-Queens中介绍的套路。基本思路是先排好序,然后每次递归中把剩下的元素一一加到结果集合中,并且把目标减去加入的元素,然后把剩下元素(包括当前加入的元...
分类:其他好文   时间:2014-10-18 00:35:49    阅读次数:221
OpenStack 与 CloudStack比较
OpenStack介绍OpenStack是一个美国国家航空航天局和Rackspace合作研发的,以Apache许可证授权,并且是一个自由软件和开放源代码项目。OpenStack主要包括以下几个子项目:OpenStackCompute(Nova)、云对象存储CloudObjectStorage(Swift)、镜像管理(Glance)、身份识别Identity(Keys..
分类:其他好文   时间:2014-10-17 19:02:05    阅读次数:293
Sicily 1172. Queens, Knights and Pawns
ConstraintsTime Limit: 1 secs, Memory Limit: 64 MBDescriptionYou all are familiar with the famous 8-queens problem which asks you to place 8 queens on...
分类:其他好文   时间:2014-10-17 02:53:23    阅读次数:417
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