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Given a number, find the next higher number which has the exact same set of digits as the original n
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You can do it in O(n) (where n is the number of digits) like this:
Starting from the right, you find the first pair-of-digits such that the left-digit is smaller than the right-digit. Let's refer to the left-digit by "digit-x". Find ...
Webrick as production server vs. Thin or Unicorn?
It seems like it's taken for granted that you must not use Webrick as production server, but I can't really find anywhere mentioning why. The consensus seems to be:
"Webrick is ok for development, but Thin or Unicorn is the choice for production, period."
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How to develop and test an app that sends emails (without filling someone's mailbox with test data)?
I have a lot of apps that send email. Sometimes it's one or two messages at a time. Sometimes it's thousands of messages.
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Best way to add comments in erb
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I used to use this format until I noticed it just raised an error on someones computer in my team (we were both using linux, but different distros), regardless I avoid it since..
– vise
May 5 '10 at 21:57
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Bring a window to the front in WPF
...Activate();
Attempts to bring the window to the foreground and activates it.
That should do the trick, unless I misunderstood and you want Always on Top behavior. In that case you want:
myWindow.TopMost = true;
share
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Get Slightly Lighter and Darker Color from UIColor
...mp;r green:&g blue:&b alpha:&a])
return [UIColor colorWithRed:MIN(r + 0.2, 1.0)
green:MIN(g + 0.2, 1.0)
blue:MIN(b + 0.2, 1.0)
alpha:a];
return nil;
}
- (UIColor *)darkerColorForCol...
What GRANT USAGE ON SCHEMA exactly do?
...role that must access the database from my php scripts, and I have a curiosity: if I execute
3 Answers
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How do I round a decimal value to 2 decimal places (for output on a page)
When displaying the value of a decimal currently with .ToString() , it's accurate to like 15 decimal places, and since I'm using it to represent dollars and cents, I only want the output to be 2 decimal places.
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Have the same README both in Markdown and reStructuredText
I have a project hosted on GitHub. For this I have written my README using the Markdown syntax in order to have it nicely formatted on GitHub.
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.gitignore for PhoneGap/Cordova 3.0 projects - what should I commit?
...our project directory structure is standard, then you can start from this gitignore and modify it for your needs.
On a rule of thumb you've to exclude all generated files like the bin/ and gen/ directories.
If you're developing an Android version of your app you should exclude build files too like ...