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What is the >>>= operator in C?

Given by a colleague as a puzzle, I cannot figure out how this C program actually compiles and runs. What is this >>>= operator and the strange 1P1 literal? I have tested in Clang and GCC. There are no warnings and the output is "???" ...
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Checking for empty arrays: count vs empty

This question on ' How to tell if a PHP array is empty ' had me thinking of this question 12 Answers ...
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How can I find the number of days between two Date objects in Ruby?

How can I find the number of days between two Date objects? 10 Answers 10 ...
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Matplotlib scatter plot with different text at each data point

I am trying to make a scatter plot and annotate data points with different numbers from a list. So, for example, I want to plot y vs x and annotate with corresponding numbers from n . ...
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How to take column-slices of dataframe in pandas

I load some machine learning data from a CSV file. The first 2 columns are observations and the remaining columns are features. ...
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Get operating system info

I recently started wondering about sites like http://thismachine.info/ that get the user's operating system info. I have not been able to find out how to do that with PHP, and wanted to try to figure it out. ...
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Open Redis port for remote connections

I can ping pong Redis on the server: 9 Answers 9 ...
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Is it correct to use JavaScript Array.sort() method for shuffling?

I was helping somebody out with his JavaScript code and my eyes were caught by a section that looked like that: 12 Answers ...
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How can I sort arrays and data in PHP?

How do I sort an array in PHP? How do I sort a complex array in PHP? How do I sort an array of objects in PHP? 12 Ans...
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How do I calculate percentiles with python/numpy?

Is there a convenient way to calculate percentiles for a sequence or single-dimensional numpy array? 11 Answers ...