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How to determine the longest increasing subsequence using dynamic programming?
... N)
Now let's do a real example:
Collection of integers:
2 6 3 4 1 2 9 5 8
Steps:
0. S = {} - Initialize S to the empty set
1. S = {2} - New largest LIS
2. S = {2, 6} - New largest LIS
3. S = {2, 3} - Changed 6 to 3
4. S = {2, 3, 4} - New largest LIS
5. S = {1, 3, 4} - Changed 2 to 1
6. S = {1, ...
Difference between wait and sleep
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368
wait waits for a process to finish; sleep sleeps for a certain amount of seconds.
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__attribute__ - C/C++ - 清泛网 - 专注C/C++及内核技术
...对，可以这么写：
struct foo { int x[2] __attribute__ ((aligned (8))); }; 如上所述，你可以手动指定对齐的格式，同样，你也可以使用默认的对齐方式。如果aligned后面不紧跟一个指定的数字值，那么编译器将依据你的目标机器 情况使用...
How to convert byte array to string and vice versa?
... a String using:
byte[] bytes = {...}
String str = new String(bytes, "UTF-8"); // for UTF-8 encoding
There are a bunch of encodings you can use, look at the Charset class in the Sun javadocs.
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C++ : why bool is 8 bits long?
In C++, I'm wondering why the bool type is 8 bits long (on my system), where only one bit is enough to hold the boolean value ?
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How exactly does the python any() function work?
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168
If you use any(lst) you see that lst is the iterable, which is a list of some items. If it conta...
Is there a way to use SVG as content in a pseudo element :before or :after
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8 Answers
8
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Tool to read and display Java .class versions
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edited Mar 8 '12 at 15:22
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answered Aug 26 '08 at 7:16
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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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How to select rows with one or more nulls from a pandas DataFrame without listing columns explicitly
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0 0 1 2
1 0 NaN 0
2 0 0 NaN
3 0 1 2
4 0 1 2
In [58]: pd.isnull(df)
Out[58]:
0 1 2
0 False False False
1 False True False
2 False False True
3 False False False
4 False False False
In [59]: pd.isnull(df).any(axis=1)
Out[59]:
0 False
1 ...