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Extracting bits with a single multiplication

...turns uninteresting bits to zeros. In the above case, your mask would be 00100100 and the result 00a00b00. Now the hard part: turning that into ab....... A multiplication is a bunch of shift-and-add operations. The key is to allow overflow to "shift away" the bits we don't need and put the ones w...
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How to add an integer to each element in a list?

If I have list=[1,2,3] and I want to add 1 to each element to get the output [2,3,4] , how would I do that? 11 Answers...
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python date of the previous month

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Returning a boolean from a Bash function

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Frequency table for a single variable

... 153 Maybe .value_counts()? >>> import pandas >>> my_series = pandas.Series([1,2...
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What does android:layout_weight mean?

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How does Duff's device work?

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How to select the row with the maximum value in each group

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Detect URLs in text with JavaScript

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Difference in System. exit(0) , System.exit(-1), System.exit(1 ) in Java

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