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Definition of a Balanced Tree
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124
The constraint is generally applied recursively to every subtree. That is, the tree is only bal...
One-line list comprehension: if-else variants
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342
x if y else z is the syntax for the expression you're returning for each element. Thus you need:...
What does O(log n) mean exactly?
...hm proportionally...and the same goes for, for example, quadratic time O(n2) etc..even algorithms, such as permutation generators, with O(n!) times, that grow by factorials.
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How to avoid “RuntimeError: dictionary changed size during iteration” error?
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In Python 2.x calling keys makes a copy of the key that you can iterate over while modifying the dict:
for i in d.keys():
Note that this doesn't work in Python 3.x because keys returns an iterator instead of a list.
Another way is ...
Java: How to set Precision for double value? [duplicate]
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edited May 23 '17 at 12:02
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111 silver badge
answered Feb 13 '13 at 3:32
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Windows batch file file download from a URL
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With PowerShell 2.0 (Windows 7 preinstalled) you can use:
(New-Object Net.WebClient).DownloadFile('http://www.example.com/package.zip', 'package.zip')
Starting with PowerShell 3.0 (Windows 8 preinstalled) you can use Invoke-WebRequest:
I...
DateTime format to SQL format using C#
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221
try this below
DateTime myDateTime = DateTime.Now;
string sqlFormattedDate = myDateTime.ToSt...
Are there any downsides to passing structs by value in C, rather than passing a pointer?
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204
For small structs (eg point, rect) passing by value is perfectly acceptable. But, apart from s...
How to check if smtp is working from commandline (Linux) [closed]
...ort_number}
So telnet to your smtp server like
telnet smtp.mydomain.com 25
And copy and paste the below
helo client.mydomain.com
mail from:<sender@mydomain.com>
rcpt to:<to_email@mydomain.com>
data
From: test@mydomain.com
Subject: test mail from command line
this is test number 1
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Removing viewcontrollers from navigation stack
...ew controller from navigation stack.
[navigationArray removeObjectAtIndex: 2]; // You can pass your index here
self.navigationController.viewControllers = navigationArray;
[navigationArray release];
Hope this will help you.
Edit: Swift Code
guard let navigationController = self.navigationContro...