犹豫哈密瓜

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2年10月24天

贪心算法解题报告(D-Farmer John)

题目:Farmer John has a problem: the dirt road from his farm to town has suffered in the recent rainstorms and now contains (1 <= N <= 10,000) mud pools.Farmer John has a collection of wooden pla...

windows上安装Scrapy

Scrapy是一个python系统网络爬虫框架,应用广泛。通过pip install Scrapy安装,始终提示Unable to find vsvarsdll.bat通过pip install Twisted ,报同样的错误,没办法,只能通过先下载Twisted扩展库的wheel文件。windows系统wheel网站地址:https://www.lfd.uci.edu/~gohlke...

GBase 集群透明网关前提条件

当 gcluster_dblink_direct_data_exchange 参数配置为 1 时,需保证源数据库与目标数据库的集群版本一致。启动透明网关的用户拥有通过透明网关对 GBase 集群的读写权限。目前只支持 Linux 操作系统。