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Are 2^n and n*2^n in the same time complexity?
...out when it is okay to ignore terms in a time complexity equation, specifically with non-polynomial examples.
5 Answers
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How do I delete specific lines in Notepad++?
...e to delete all the lines that have the string '#region'. That's just an example, and I can think of several more uses, but is that even possible?
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Ternary Operator Similar To ?:
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We can combine How to define a ternary operator in Scala which preserves leading tokens? with the answer to Is Option wrapping a value a good pattern? to get
scala> "Hi".getClass.getSimpleName |> {x => x.endsWith("$") ? x.init | x}
res0:...
Writing a list to a file with Python
...ist:
print >> f, item
If you're keen on a single function call, at least remove the square brackets [], so that the strings to be printed get made one at a time (a genexp rather than a listcomp) -- no reason to take up all the memory required to materialize the whole list of strings....
Encoding Javascript Object to Json string
... @TomášZato: Why specifically would it be? JSON.stringify predates PHP's json_encode, if that's what you're alluding to.
– Dave Ward
Oct 20 '14 at 0:37
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Convert tuple to list and back
...only if all your inner lists are of the same size (which is true in your example, so I just assume this).
WIDTH = 6
level1 = [ 1,1,1,1,1,1,
1,0,0,0,0,1,
1,0,0,0,0,1,
1,0,0,0,0,1,
1,0,0,0,0,1,
1,1,1,1,1,1 ]
print level1[x + y*WIDTH] # print val...
How to define hash tables in Bash?
...ecuting your script directly, or execute script with bash script. (Not actually executing a Bash script with Bash does happen, and will be really confusing!)
You declare an associative array by doing:
declare -A animals
You can fill it up with elements using the normal array assignment operator....
How to reliably guess the encoding between MacRoman, CP1252, Latin1, UTF-8, and ASCII
...etermine whether the cp1252 or MacRoman characters are more common.
For example, in a search I just performed on 100 random English Wikipedia articles, the most common non-ASCII characters are ·•–é°®’èö—. Based on this fact,
The bytes 0x92, 0x95, 0x96, 0x97, 0xAE, 0xB0, 0xB7, 0xE8,...
How to export/import PuTTy sessions list?
...utty-sessions.reg" HKEY_CURRENT_USER\Software\SimonTatham\PuTTY\Sessions
All settings:
regedit /e "%USERPROFILE%\Desktop\putty.reg" HKEY_CURRENT_USER\Software\SimonTatham
Powershell:
Only sessions:
reg export HKCU\Software\SimonTatham\PuTTY\Sessions ([Environment]::GetFolderPath("Desktop") ...
What are sessions? How do they work?
... session hijacking is certainly a problem: check this out! owasp.org/index.php/Session_hijacking_attack
– BKSpurgeon
Apr 15 '17 at 18:39
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