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What does “O(1) access time” mean?
I have seen this term "O(1) access time" used to mean "quickly" but I don't understand what it means. The other term that I see with it in the same context is "O(n) access time". Could someone please explain in a simple way what these terms mean?
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Comparison of C++ unit test frameworks [closed]
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Make outer div be automatically the same height as its floating content
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169
You can set the outerdiv's CSS to this
#outerdiv {
overflow: hidden; /* make sure this do...
Detect IF hovering over element with jQuery
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How to include JavaScript file or library in Chrome console?
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251
appendChild() is a more native way:
var script = document.createElement('script');
script.type ...
Pycharm does not show plot
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103
Just use
plt.show()
This command tells the system to draw the plot in Pycharm.
Example:
plt.i...
Check if a given key already exists in a dictionary
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Determine device (iPhone, iPod Touch) with iOS
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Counting null and non-null values in a single query
... to get it to work on another RDBMS):
select sum(case when a is null then 1 else 0 end) count_nulls
, count(a) count_not_nulls
from us;
Or:
select count(*) - count(a), count(a) from us;
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How can I use a DLL file from Python?
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160
For ease of use, ctypes is the way to go.
The following example of ctypes is from actual code...