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ToList()— does it create a new list?
...assignment like objectList[0].SimpleInt=5 would not be allowed (C# compile-time error). That is because the return value of the list indexer's get accessor is not a variable (it is a returned copy of a struct value), and therefore setting its member .SimpleInt with an assignment expression is not al...
O(nlogn) Algorithm - Find three evenly spaced ones within binary string
...riple easily, and if there are too few 1s, checking all pairs takes little time. Unfortunately, while this intuition is correct and the simple approach is better than O(n2), it is not significantly better. As in sdcvvc's answer, we can take the "Cantor-like set" of strings of length n=3k, with 1s at...
How fast is D compared to C++?
I like some features of D, but would be interested if they come with a
runtime penalty?
8 Answers
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Why is there “data” and “newtype” in Haskell? [duplicate]
...ns (e.g., only one constructor), and that due to these restrictions the runtime system can handle newtype s more efficiently. And the handling of pattern matching for undefined values is slightly different.
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How to write DataFrame to postgres table?
...o.sql: https://gist.github.com/jorisvandenbossche/10841234.
I wrote this a time ago, so cannot fully guarantee that it always works, buth the basis should be there). If you put that file in your working directory and import it, then you should be able to do (where con is a postgresql connection):
i...
GroupBy pandas DataFrame and select most common value
...reconstructing the groupby output. It is also faster.
# Accepted answer.
%timeit source.groupby(['Country','City']).agg(lambda x:x.value_counts().index[0])
# Proposed in this post.
%timeit source.groupby(['Country','City'])['Short name'].agg(pd.Series.mode)
5.56 ms ± 343 µs per loop (mean ± std...
The data-toggle attributes in Twitter Bootstrap
...pe to open. In order to do this, you need to associate things like cooking time, primary ingredient, meal position, and so on right inside the list elements for the recipes.
<li><a href="recipe1.html">Borscht</a></li>
<li><a href="recipe2.html">Chocolate Mousse&...
What's the easiest way to call a function every 5 seconds in jQuery? [duplicate]
... your speedy answer to the question when your rep's not capped, in the meantime I will +1 your comment for being so informative to my question :)
– Anthony Forloney
Jan 31 '10 at 8:08
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How to make blinking/flashing text with CSS 3
...ynchronisation between the two - the fades will take a bit longer than the timer (and timers aren't reliable anyway) and eventually you'll likely end up with unbounded queue of animations queued up on the element. The correct approach would be to do without the timer and "recursively" call blinker...
How to print the ld(linker) search path
...dconfig are not correct because they refer to the paths searched by the runtime dynamic linker (i.e. whenever a program is executed), which is not the same as the path searched by ld (i.e. whenever a program is linked).
shar...