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Find a pair of elements from an array whose sum equals a given number
Given array of n integers and given a number X, find all the unique pairs of elements (a,b), whose summation is equal to X.
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Is there an easy way to check the .NET Framework version?
...89)) {
return "4.5 or later";
}
// This line should never execute. A non-null release key should mean
// that 4.5 or later is installed.
return "No 4.5 or later version detected";
}
share
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How to build for armv6 and armv7 architectures with iOS 5
... deployment target of iOS 4.0. With only armv7 specified in Architectures, Xcode warned me that to support anything below iOS4.2 I had to include armv6 in Architectures. Just edit that field, click the "+" button when the dialog pops up and enter the literal "armv6".
In my case, we want our app to ...
How to trick an application into thinking its stdout is a terminal, not a pipe
...a!
The script command does what we want...
script --return --quiet -c "[executable string]" /dev/null
Does the trick!
Usage:
script [options] [file]
Make a typescript of a terminal session.
Options:
-a, --append append the output
-c, --command <command> run com...
How to set commands output as a variable in a batch file
...t possible to set a statement's output of a batch file to a variable, for example:
7 Answers
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Java Generics: Cannot cast List to List? [duplicate]
...g IMO, which makes assignments within the array unsafe - they can fail at execution time, despite being fine at compile time.
In the first case, imagine that the code did compile, and was followed by:
b1.add(new SomeOtherTree());
DataNode node = a1.get(0);
What would you expect to happen?
You c...
How to secure an ASP.NET Web API [closed]
...{host}
Timestamp: {timestamp}
Authentication: {username}:{signature}
Example for GET request:
GET /webapi.hmac/api/values
User-Agent: Fiddler
Host: localhost
Timestamp: Thursday, August 02, 2012 3:30:32 PM
Authentication: cuongle:LohrhqqoDy6PhLrHAXi7dUVACyJZilQtlDzNbLqzXlw=
The mes...
How to convert image to byte array
...o byte[] you can do as follows:
public static byte[] converterDemo(Image x)
{
ImageConverter _imageConverter = new ImageConverter();
byte[] xByte = (byte[])_imageConverter.ConvertTo(x, typeof(byte[]));
return xByte;
}
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How to display PDF file in HTML?
I have an auto generated PDF file by itext and I need to display that PDF file in HTML. My question is: How to display a local PDF file in HTML using pdf.js ? Should that PDF file be generated by some standards?
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Efficient method to generate UUID String in JAVA (UUID.randomUUID().toString() without the dashes)
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For example, Mongodb do not uses dashes in ObjectID. So removing dashes can be useful for api.
– Alexey Ryazhskikh
Mar 28 '15 at 13:28
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