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How to count the number of set bits in a 32-bit integer?
8 bits representing the number 7 look like this:
55 Answers
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How to pass parameters to ThreadStart method in Thread?
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answered Jul 29 '10 at 8:19
Marc Gravell♦Marc Gravell
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搭建高可用mongodb集群（四）—— 分片 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...好了，安装软件！
1、准备机器，IP分别设置为： 192.168.0.136、192.168.0.137、192.168.0.138。
2、分别在每台机器上建立mongodb分片对应测试文件夹。
#存放mongodb数据文件
mkdir -p /data/mongodbtest
#进入mongodb文件夹
cd /data/mongodbtest
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Convert JS object to JSON string
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answered Nov 12 '10 at 8:31
AndrisAndris
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python numpy machine epsilon
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ali_mali_m
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How to update column with null value
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228
No special syntax:
CREATE TABLE your_table (some_id int, your_column varchar(100));
INSERT INT...
How to loop through an array containing objects and access their properties
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edited May 26 '18 at 8:59
Lawrence Cherone
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Is it possible to have multiple statements in a python lambda expression?
...d in the heapq module.
>>> import heapq
>>> l = [5,2,6,8,3,5]
>>> heapq.nsmallest(l, 2)
[2, 3]
So just use:
map(lambda x: heapq.nsmallest(x,2)[1], list_of_lists)
It's also usually considered clearer to use a list comprehension, which avoids the lambda altogether:
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Opacity CSS not working in IE8
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No idea if this still applies to 8, but historically IE doesn't apply several styles to elements that don't "have layout."
see: http://www.satzansatz.de/cssd/onhavinglayout.html
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