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When to use a linked list over an array/array list?
...ts will cause you to do searching forward and backward, unless your LL has ordered values ... and still the worst case scenario is O(n)
– securecurve
Nov 27 '16 at 9:33
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How to select rows from a DataFrame based on column values?
...indexing (df.iloc[...]) has its use cases, but this isn't one of them. In order to identify where to slice, we first need to perform the same boolean analysis we did above. This leaves us performing one extra step to accomplish the same task.
mask = df['A'] == 'foo'
pos = np.flatnonzero(mask)
df....
How to determine CPU and memory consumption from inside a process?
...you will have to sample this file periodically, and calculate the diff, in order to determine the process's CPU usage over time.
Edit: remember that when you calculate your process's CPU utilization, you have to take into account 1) the number of threads in your process, and 2) the number of pro...
Using async/await for multiple tasks
... test while my computer was doing the weekly anti virus scan. Changing the order of the tests did change the execution times on them.
Starting test: Parallel.ForEach...
Worker 1 started on thread 9, beginning 0.02 seconds after test start.
Worker 2 started on thread 10, beginning 0.02 seconds after...
Best way to do Version Control for MS Excel
...he import code. Since you're deleted and importing modules, it changes the order of the modules so you're missing a few each time. You need to change the For loop to go backwards through the array. e.g. For i = .VBComponents.Count To 1 Step -1
– Tmdean
Nov 30 '...
Is there a difference between YES/NO,TRUE/FALSE and true/false in objective-c?
...is intended to be a logical boolean, it will always have this interface in order to preserve binary compatibility. The problems begin when you use non booleans that seem like booleans, for example c standard library application entry function, main returns 0 on success, many end up thinking of this ...
My Understanding of HTTP Polling, Long Polling, HTTP Streaming and WebSockets
..., long poll, streaming.
Bi-direcitonal: WebSockets, plugin networking
In order of increasing latency (approximate):
WebSockets
Plugin networking
HTTP streaming
HTTP long-poll
HTTP polling
CORS (cross-origin support):
WebSockets: yes
Plugin networking: Flash via policy request (not sure about...
Python __call__ special method practical example
...on in general, a dictionary works out well because you can't guarantee the order in which things fill up your list. In this case, a list might work, but it's not going to be any faster or simpler.
– S.Lott
Apr 28 '11 at 21:05
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Does anyone beside me just NOT get ASP.NET MVC? [closed]
... Forms superior to MVC in my book: MVC makes you pay a real world price in order to gain a bit more testability or, worse yet, to simply be seen as cool because you are using the latest technology.
Update: I've been criticized heavily in the comments section - some of it quite fair. Thus, I have s...
How does this CSS produce a circle?
...
How does a border of 180 pixels with height/width-> 0px become a circle with a radius of 180 pixels?
Let's reformulate that into two questions:
Where do width and height actually apply?
Let's have a look at the areas of a typical ...