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How do I reverse a C++ vector?
...{
std::vector<int> a;
std::reverse(a.begin(), a.end());
return 0;
}
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Is SQL or even TSQL Turing Complete?
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Qantas 94 Heavy
14.4k1616 gold badges6060 silver badges7777 bronze badges
answered Sep 28 '11 at 7:59
Jan de VosJan de Vos
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ATL正则表达式库使用 - C/C++ - 清泛网 - 专注C/C++及内核技术
...这样构造我们的CAtlRegExp类：
CAtlRegExp <> re;
re.Parse( "{[0-9]?[0-9]}:{[0-9][0-9]}" );
ATL的正则表达式语法和Perl的正则表达式语法大同小异，不过有一个值得注意的地方就 是ATL中用大括号（{ }）表示其匹配字符串中的Group，我们上...
How do I get Month and Date of JavaScript in 2 digit format?
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("0" + this.getDate()).slice(-2)
for the date, and similar:
("0" + (this.getMonth() + 1)).slice(-2)
for the month.
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How to calculate cumulative normal distribution?
...le:
&gt;&gt;&gt; from scipy.stats import norm
&gt;&gt;&gt; norm.cdf(1.96)
0.9750021048517795
&gt;&gt;&gt; norm.cdf(-1.96)
0.024997895148220435
In other words, approximately 95% of the standard normal interval lies within two standard deviations, centered on a standard mean of zero.
If you need t...
What does |= (ior) do in Python?
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Here we apply merge (|) and update (|=) to dicts:
&gt;&gt;&gt; d1 = {"a": 0, "b": 1, "c": 2}
&gt;&gt;&gt; d2 = {"c": 20, "d": 30}
&gt;&gt;&gt; # Merge, |
&gt;&gt;&gt; d1 | d2
{"a": 0, "b": 1, "c": 20, "d": 30}
&gt;&gt;&gt; d1
{"a": 0, "b": 1, "c": 2}
&gt;&gt;&gt; # Update, |=
&gt;&gt;&gt; d1 |=...
Javascript regex returning true.. then false.. then true.. etc [duplicate]
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/^[^-_]([a-z0-9-_]{4,20})[^-_]$/gi;
You're using a g (global) RegExp. In JavaScript, global regexen have state: you call them (with exec, test etc.) the first time, you get the first match in a given string. Call them again and you get...
Shading a kernel density plot between two points.
...x(which(dens$x &lt; q95))
with(dens, polygon(x=c(x[c(x1,x1:x2,x2)]), y= c(0, y[x1:x2], 0), col="gray"))
Output (added by JDL)
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How to install a previous exact version of a NPM package?
I used nvm to download node v0.4.10 and installed npm to work with that version of node.
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How to test multiple variables against a value?
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+500
You misunderstand how boolean expressions work; they don't work like an English sentence and guess that you are talking about the sam...