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How can I create Min stl priority_queue?
...are> pq;
people person1,person2,person3;
person1.salary=100;
person1.age = 50;
person2.salary=80;
person2.age = 40;
person3.salary = 100;
person3.age=40;
pq.push(person1);
pq.push(person2);
pq.push(person3);
...
How to read environment variables in Scala
...
100
It's probably better practice to use sys.env.get("VARIABLE") which will give you an Option[String] rather than throw an error if that vari...
How to determine whether a Pandas Column contains a particular value
...
I did a few simple tests:
In [10]: x = pd.Series(range(1000000))
In [13]: timeit 999999 in x.values
567 µs ± 25.6 µs per loop (mean ± std. dev. of 7 runs, 1000 loops each)
In [15]: timeit x.isin([999999]).any()
9.54 ms ± 291 µs per loop (mean ± std. dev. of 7 runs, 100 l...
Mix Razor and Javascript code
... Model.rows)
{
<text>
data.push([ @r.UnixTime * 1000, @r.Value ]);
</text>
}
</script>
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Git Blame Commit Statistics
...----------------+
| Linus Oleander | 914 | 106 | 21 | 94.5 / 97.2 / 100.0 |
| f1yegor | 47 | 2 | 7 | 4.9 / 1.8 / 33.3 |
| David Selassie | 6 | 1 | 2 | 0.6 / 0.9 / 9.5 |
+----------------+-----+---------+-------+---------------------+
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How to calculate a logistic sigmoid function in Python?
...eturn 1 / (1 + math.exp(-x))
....:
In [6]: %timeit -r 1 sigmoid(0.458)
1000000 loops, best of 1: 371 ns per loop
In [7]: %timeit -r 1 logistic.cdf(0.458)
10000 loops, best of 1: 72.2 µs per loop
In [8]: %timeit -r 1 expit(0.458)
100000 loops, best of 1: 2.98 µs per loop
As expected logist...
Tools to generate database tables diagram with Postgresql? [closed]
...me -host myhost -u username -p password -o ./schemaspy -dp postgresql-9.3-1100.jdbc3.jar -s public -noads
Sometimes using options -port will not working if your database has diferrent port, so you have to add manual port after host parameter, for example:
java -jar schemaspy-6.0.0-rc2.jar -t pgsq...
How to implement classic sorting algorithms in modern C++?
... need around 130 LOC, C++98 and Boost 190 (+50%) and C++98 more than 270 (+100%).
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How to write a multidimensional array to a text file?
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# New slice
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Code-first vs Model/Database-first [closed]
...generated. The initial migration is your current schema
or your baseline v1.0. From that point on you will add migrations
which are timestamped and labeled with a descriptor to help with
ordering of versions. When you call add-migration from the package
manager, a new migration file will be ...