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Efficient way to determine number of digits in an integer

...1; if (x < 100) return 2; etc., so that the function will do less tests and exit faster. – squelart Sep 28 '09 at 23:44 29 ...
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Remove last item from array

... @PrithvirajMitra You want to remove 1 and 0? So the array ==[2] ? – Anton Oct 23 '13 at 14:40 3 ...
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Is std::vector so much slower than plain arrays?

...d::vector is "implemented as an array," blah blah blah. Today I went down and tested it, and it seems to be not so: 22 Ans...
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How to do exponential and logarithmic curve fitting in Python? I found only polynomial fitting

I have a set of data and I want to compare which line describes it best (polynomials of different orders, exponential or logarithmic). ...
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Why is printing to stdout so slow? Can it be sped up?

...ement. After some recent painfully slow logging I decided to look into it and was quite surprised to find that almost all the time spent is waiting for the terminal to process the results. ...
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Declaring variables inside or outside of a loop

...that str absolutely ought to be declared within the while loop. No ifs, no ands, no buts. The only case where this rule might be violated is if for some reason it is of vital importance that every clock cycle must be squeezed out of the code, in which case you might want to consider instantiating s...
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Why does Lua have no “continue” statement?

I have been dealing a lot with Lua in the past few months, and I really like most of the features but I'm still missing something among those: ...
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Pandas groupby: How to get a union of strings

...065 This 1 2 0.301084 is 2 3 0.463468 a 3 4 0.643961 random 4 1 0.866521 string 5 2 0.120737 ! In [6]: df.dtypes Out[6]: A int64 B float64 C object dtype: object When you apply your own function, there is not automatic exclusions of non-numeric columns...
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How do you compare two version Strings in Java?

Is there a standard idiom for comparing version numbers? I can't just use a straight String compareTo because I don't know yet what the maximum number of point releases there will be. I need to compare the versions and have the following hold true: ...
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Using jquery to get element's position relative to viewport

... The easiest way to determine the size and position of an element is to call its getBoundingClientRect() method. This method returns element positions in viewport coordinates. It expects no arguments and returns an object with properties left, right, top, and bott...