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Converting dict to OrderedDict

I am having some trouble using the collections.OrderedDict class. I am using Python 2.7 on Raspbian, the Debian distro for Raspberry Pi. I am trying to print two dictionaries in order for comparison (side-by-side) for a text-adventure. The order is essential to compare accurately. No matter what I...
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Determining complexity for recursive functions (Big O notation)

I have a Computer Science Midterm tomorrow and I need help determining the complexity of these recursive functions. I know how to solve simple cases, but I am still trying to learn how to solve these harder cases. These were just a few of the example problems that I could not figure out. Any help wo...
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How to return a part of an array in Ruby?

... Yes, Ruby has very similar array-slicing syntax to Python. Here is the ri documentation for the array index method: --------------------------------------------------------------- Array#[] array[index] -> obj or nil ...
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How to change the default collation of a table?

...ult character set and collation of a table including those of existing columns (note the convert to clause): alter table <some_table> convert to character set utf8mb4 collate utf8mb4_unicode_ci; Edited the answer, thanks to the prompting of some comments: Should avoid recommending utf8....
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Sending a notification from a service in Android

... Both Activity and Service actually extend Context so you can simply use this as your Context within your Service. NotificationManager notificationManager = (NotificationManager) getSystemService(Service.NOTIFICATION_SERVICE); Notification notification = new Notification(/* your noti...
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How to do an INNER JOIN on multiple columns

I'm working on a homework project and I'm supposed to perform a database query which finds flights either by the city name or the airport code, but the flights table only contains the airport codes so if I want to search by city I have to join on the airports table. ...
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Difference between .tagName and .nodeName

What is the difference between $('this')[0].nodeName and $('this')[0].tagName ? 4 Answers ...
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Do you have to include ?

I didn't include the following line of code in my head tag, however my favicon still appears in my browser: 5 Answers ...
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How to see the CREATE VIEW code for a view in PostgreSQL?

...e an easy way to see the code used to create a view using the PostgreSQL command-line client? 6 Answers ...
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How to suppress Pandas Future warning ?

When I run the program, Pandas gives 'Future warning' like below every time. 3 Answers ...