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Get index of array element faster than O(n)
Given I have a HUGE array, and a value from it. I want to get index of the value in array. Is there any other way, rather then call Array#index to get it? The problem comes from the need of keeping really huge array and calling Array#index enormous amount of times.
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Setup a Git server with msysgit on Windows [closed]
My friends and I are trying to setup Git for Windows using the tutorial Git Server: Gitosis and Cygwin on Windows , but we just keep running into problems.
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How can I remove specific rules from iptables?
I am hosting special HTTP and HTTPS services on the ports 8006 and 8007 respectively. I use iptables to "activate" the server; i.e. to route the incoming HTTP and HTTPS ports:
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No output to console from a WPF application?
I'm using Console.WriteLine() from a very simple WPF test application, but when I execute the application from the command line, I'm seeing nothing being written to the console. Does anyone know what might be going on here?
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PostgreSQL return result set as JSON array?
I would like to have PostgreSQL return the result of a query as one JSON array. Given
2 Answers
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Changing navigation title programmatically
I have a navigation bar with a title.
When I double click the text to rename it, it actually says it's a navigation item, so it might be that.
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How to round up to the nearest 10 (or 100 or X)?
I am writing a function to plot data. I would like to specify a nice round number for the y-axis max that is greater than the max of the dataset.
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How to access SOAP services from iPhone
I'm planning to develop an app for the iPhone and that app would have to access a couple of SOAP services. While doing some basic checking in the iPhone SDK I was not able to find any support for accessing SOAP services, a bit of Googling lead to the conclusion that there is no support for SOAP in t...
What text editor is available in Heroku bash shell? [closed]
I'm trying to update httpd.conf in my Cedar-based Heroku app. I got to my Heroku bash with
15 Answers
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Which is fastest? SELECT SQL_CALC_FOUND_ROWS FROM `table`, or SELECT COUNT(*)
When you limit the number of rows to be returned by a SQL query, usually used in paging, there are two methods to determine the total number of records:
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