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Algorithm for Determining Tic Tac Toe Game Over
... the pieces in the corresponding row, column, or diagonal, where
A piece from player A has value (1,0)
A piece from player B has value (0,1)
When a player places a piece, update the corresponding row pair, column pair, and diagonal pairs (if on the diagonals). If any newly updated row, column, o...
Difference between std::system_clock and std::steady_clock?
...
From N3376:
20.11.7.1 [time.clock.system]/1:
Objects of class system_clock represent wall clock time from the system-wide realtime clock.
20.11.7.2 [time.clock.steady]/1:
Objects of class steady_clock represent clo...
Border around tr element doesn't show?
... individual cells, the other is suitable for borders that are
continuous from one end of the table to the other.
... and later, for collapse setting:
In the collapsing border model, it is possible to specify borders that
surround all or part of a cell, row, row group, column, and column
...
How to import multiple .csv files at once?
...iple data.csv files, each containing the same number of variables but each from different times.
Is there a way in R to import them all simultaneously rather than having to import them all individually?
...
What is the equivalent of MATLAB's repmat in NumPy
...n the direction of columns, rows and out-of-plane dimension are being read from right to left. The resulting object has a different shape from Matlab. One can no longer assert that repmat and tile are equivalent instructions.
In order to get tile to behave like repmat, in Python one has to make s...
Why are only final variables accessible in anonymous class?
...y though, if you want the same sort of functionality as C# where variables from different scopes can be "instantiated" different numbers of times.
– Jon Skeet
Jan 19 '11 at 7:15
3
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How do I trim whitespace from a string?
How do I remove leading and trailing whitespace from a string in Python?
12 Answers
12...
When saving, how can you check if a field has changed?
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I use following mixin:
from django.forms.models import model_to_dict
class ModelDiffMixin(object):
"""
A model mixin that tracks model fields' values and provide some useful api
to know what fields have been changed.
"""
def ...
Cassandra port usage - how are the ports used?
...
For posterity, this annoyance should be fixed, from Cassandra 2.0.8 onward according to this ticket. The default cassandra-env.sh now sets the com.sun.management.jmxremote.rmi.port property to the same value as the main JMX port so that random ports are not used.
...
How do I get an ISO 8601 date on iOS?
...SDate *now = [NSDate date];
NSString *iso8601String = [dateFormatter stringFromDate:now];
And in Swift:
let dateFormatter = DateFormatter()
let enUSPosixLocale = Locale(identifier: "en_US_POSIX")
dateFormatter.locale = enUSPosixLocale
dateFormatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ssZZZZZ"
dateFo...