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Easy interview question got harder: given numbers 1..100, find the missing number(s) given exactly k
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+1; I've tried the formula in Maple for select numbers and it works. I still couldn't convince myself WHY it works, though.
– polygenelubricants
Aug 16 '10 at 11:12
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Are soft deletes a good idea? [duplicate]
... is RIGHT
4) The complexities of soft delete never ever stops at a simple select.
A) Suppose you had a UNIQUE constraint. Now you soft-delete a row but the column with UNIQUE constraint is still there. When you want to add the same data back in, you cannot do that without additional "tricks".
B...
Reading 64bit Registry from a 32bit application
...ubKey(registryKey);
if (key != null)
{
var list = key.GetSubKeyNames().Select(keyName => key.OpenSubKey(keyName).GetValue("DisplayName")).ToList();
key.Close();
}
For 32 registers is:
registryKey = @"SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall";
key = Registry.Loca...
How to get the source directory of a Bash script from within the script itself?
...e you locate this at start of the script.
This comment and code Copyleft, selectable license under the GPL2.0 or later or CC-SA 3.0 (CreativeCommons Share Alike) or later. (c) 2008. All rights reserved. No warranty of any kind. You have been warned.
http://www.gnu.org/licenses/gpl-2.0.txt
http://c...
Detect if the app was launched/opened from a push notification
...e case where you have your app in the foreground, lock the phone, and then select a push notification from the lock screen, it is calling didReceiveRemoteNotification:background just before calling applicationWillEnterForeground rather than what we are seeing on iOS 10 where it calls applicationWill...
How can I push a local Git branch to a remote with a different name easily?
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Rebase is a smart merge. Then push to master again and you’ll see the selected feature branch as master on the new repo.
Optional:
git remote rm upstream
git remote add upstream new-repo-url
share
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LINQ to Entities only supports casting EDM primitive or enumeration types with IEntity interface
...i eventually found the solution which was for my extension method to call .Select(e => e as T) where T is the child class and e is the base class.
full details are here:
Create IQueryable<T> extension using base class in EF
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The quest for the Excel custom function tooltip
...{
return v1 + v2;
}
we get both the function description
and when selecting the function, we get argument help
That looks nice, but it's all still very flaky, only works on my machine and sometimes crashes Excel. It might be a start, though...
Update 9 May 2014:
I've made some progre...
Add missing dates to pandas dataframe
... fill data for missing labels, (including by forward/backward filling) (4) select rows by label!
– unutbu
Oct 11 '13 at 18:36
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How do I configure emacs for editing HTML files that contain Javascript?
...n but a quick fix if you really need to have javascript in your html is to select the region containing javascript and use the command narrow-to-region(C-x n n) and then switch to your preferred javascript mode. The command widen brings you back, (C-x n w).
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