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How to get all subsets of a set? (powerset)
... = [a for a in A]
ps = set()
for i in range(2 ** length):
selector = f'{i:0{length}b}'
subset = {l[j] for j, bit in enumerate(selector) if bit == '1'}
ps.add(frozenset(subset))
return ps
If you want exactly the output you posted in your answer use this:
>&...
How to make a HTML Page in A4 paper size page(s)?
...replace @page x with @page, then it works, but that is not a page-specific selector.
– Rob W
Mar 12 '15 at 22:39
For t...
AsyncTask Android example
...ticed that your onClick listener does not check to see which View has been selected. I find the easiest way to do this is via switch statements. I have a complete class edited below with all suggestions to save confusion.
import android.app.Activity;
import android.os.AsyncTask;
import android.os.B...
What's the point of OOP?
...
@BradGilbert: of course the asker selected an answer which aligns perfectly with the opinion in his initial question. Which raises the question, why bother asking the question if you already have decided on your answer?
– TM.
...
Android customized button; changing text color
...color for your button, just like you did for background, for example:
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<!-- Focused and not pressed -->
<item android:state_focused="true"
android:state_pressed="false"
android:color="...
Explaining Apache ZooKeeper
... simple: The server team with 3 servers has the majority and is allowed to select the new leader.
Even if you just have 3 servers and one of them fails the other 2 still form the majority and can agree that one of them will become the new leader.
I realize once you think about it some time and un...
JavaScript/JQuery: $(window).resize how to fire AFTER the resize is completed?
...ed for me...the others above did not! I am not sure why your answer wasn't selected.
– Mumbo Jumbo
Jun 9 '15 at 21:03
...
Which .NET Dependency Injection frameworks are worth looking into? [closed]
...nd evaluating and seeing which one fits. The nice thing is you have a nice selection of donuts rather than just having to have a jelly one.
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Factors in R: more than an annoyance?
...ls(x)
levels(x$Species)
# [1] "setosa"
This is how to keep levels you've selected out from getting in ggplot legends.
Internally, factors are integers with an attribute level character vector (see attributes(iris$Species) and class(attributes(iris$Species)$levels)), which is clean. If you had to ...
How to debug Visual Studio extensions
...the loaded extension. Try the following
Right click on the project and select Properties
Go to the Debug Tab
Click on the radio button for Start External Program. Point it to the devenv.exe binary. On my machine it's located at
C:\Program Files (x86)\Microsoft Visual Studio 10.0\Common...