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How to get all subsets of a set? (powerset)
...owerset([4, 5, 6])))
Using yield means that you do not need to calculate all results in a single piece of memory. Precalculating the masks outside the main loop is assumed to be a worthwhile optimization.
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Rails migration for has_and_belongs_to_many join table
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This is the only reply that actually answers the question.
– pingu
Aug 17 '12 at 10:57
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How do you log content of a JSON object in Node.js?
... me: console.log("Session: %O", session); developer.mozilla.org/en-US/docs/Web/API/…
– JP Lew
Jun 12 '19 at 22:02
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How to autosize a textarea using Prototype?
...nal sales application for the company I work for, and I've got a form that allows the user to change the delivery address.
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“TypeError: (Integer) is not JSON serializable” when serializing JSON in Python?
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I found my problem. The issue was that my integers were actually type numpy.int64.
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How to do date/time comparison
...Go? I have to sort data based on date and time - independently. So I might allow an object that occurs within a range of dates so long as it also occurs within a range of times. In this model, I could not simply just select the oldest date, youngest time/latest date, latest time and Unix() seconds c...
What is the maximum value for an int32?
...bout 1 billion. One of the 32 bits is used for sign, so the max value is really only 2^31, which is about twice the amount you get for 2^(3*10): 2 billion.
– 16807
Dec 3 '13 at 22:24
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iOS: how to perform a HTTP POST request?
...ction *)connection didFailWithError:(NSError *)error {
[[[[UIAlertView alloc] initWithTitle:NSLocalizedString(@"Error", @"")
message:[error localizedDescription]
delegate:nil
cancelButtonTitle:NSLocalizedStri...
MySQL SELECT WHERE datetime matches day (and not necessarily time)
I have a table which contains a datetime column. I wish to return all records of a given day regardless of the time. Or in other words, if my table only contained the following 4 records, then only the 2nd and 3rd would be returned if I limit to 2012-12-25.
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DateTime.Now vs. DateTime.UtcNow
...f how the two properties work. I know the second one is universal and basically doesn't deal with time zones, but can someone explain in detail how they work and which one should be used in what scenario?
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