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Quickly find whether a value is present in a C array?
...rt enough to unroll the loop. Here's a way to do it which incorporates the 3 ideas I mentioned in my comment: Loop unrolling, cache prefetch and making use of the multiple load (ldm) instruction. The instruction cycle count comes out to about 3 clocks per array element, but this doesn't take into ac...
jQuery count child elements
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How do I create an array of strings in C?
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If you don't want to change the strings, then you could simply do
const char *a[2];
a[0] = "bl...
How can I wrap or break long text/word in a fixed width span?
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edited Sep 17 '14 at 8:35
answered Aug 14 '13 at 7:10
Ma...
What is the best way to compute trending topics or tags?
...) / std
Sample Output
>>> zscore(12, [2, 4, 4, 4, 5, 5, 7, 9])
3.5
>>> zscore(20, [21, 22, 19, 18, 17, 22, 20, 20])
0.0739221270955
>>> zscore(20, [21, 22, 19, 18, 17, 22, 20, 20, 1, 2, 3, 1, 2, 1, 0, 1])
1.00303599234
>>> zscore(2, [21, 22, 19, 18, 17, 22, 20,...
LINGO使用指南 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...如下的LP问题：
在模型窗口中输入如下代码：
min=2*x1+3*x2;
x1+x2>=350;
x1>=100;
2*x1+x2<=600;
然后点击工具条上的按钮 即可。
例1.2 使用LINGO软件计算6个发点8个收点的最小费用运输问题。产销单位运价如下表。
销地
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理解Python的 with 语句 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
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When executed, this will result in:
运行代码，输出如下
bash-3.2$ ./with_example01.py
In __enter__()
sample: Foo
In __exit__()
As you can see, The __enter__() function is executed The value returned by it - in this case "Foo" is assigned to sample The body of the block is executed,...
如何建立一套适合自己的高胜算交易系统 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...重要的，其次是风险管理，再次才是分析技能，即所谓的3M系统(Mind、Money、Market)。如果用一个比方来形容，对市场的判断在投资行为的重要性中只占1%而已，被大多数投资人忽略的东西，才是投资行为中的决定性因素。市场分析...
Is it possible to modify variable in python that is in outer, but not global, scope?
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Python 3.x has the nonlocal keyword. I think this does what you want, but I'm not sure if you are running python 2 or 3.
The nonlocal statement causes the listed identifiers to refer to
previously bound variables in the neare...
How do I check if a property exists on a dynamic anonymous type in c#?
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edited Apr 5 '17 at 15:32
answered Mar 31 '12 at 14:58
S...