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C# Sortable collection which allows duplicate keys

...Format("{0}:{1}", tuple.Item1,tuple.Item2)); } int expected_first = 1; int expected_last = 3; int first = list.First().Item1; //requires using System.Linq int last = list.Last().Item1; //requires using System.Linq Assert.AreEqual(expected_first, fi...
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How to declare string constants in JavaScript? [duplicate]

...rs' implementations (and Node) have constants, used with const. const SOME_VALUE = "Your string"; This const means that you can't reassign it to any other value. Check the compatibility notes to see if your targeted browsers are supported. Alternatively, you could also modify the first example,...
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What are the differences between NP, NP-Complete and NP-Hard?

...njunction (ANDs) of 3-clause disjunctions (ORs), statements of the form (x_v11 OR x_v21 OR x_v31) AND (x_v12 OR x_v22 OR x_v32) AND ... AND (x_v1n OR x_v2n OR x_v3n) where each x_vij is a boolean variable or the negation of a variable from a finite predefined list (x_1, x...
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Bash empty array expansion with `set -u`

...4.4. $ bash --version | head -n 1 GNU bash, version 4.4.19(1)-release (x86_64-pc-linux-gnu) $ set -u $ arr=() $ echo "foo: '${arr[@]}'" foo: '' There is a conditional you can use inline to achieve what you want in older versions: Use ${arr[@]+"${arr[@]}"} instead of "${arr[@]}". $ function ...
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ios app maximum memory budget

... iPhone 5 crashes at ±645 MB. – asp_net Dec 15 '13 at 21:03 4 @JasperPol I've e...
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Java's L number (long) specification

...tion about suffixes... If I declare a long or a double variable like: long _lo = 30; and not 30L does this mean my variable will be converted into float ? Or in case of _lo = _lo + 2.77 that _lo will be casted into float although it was declared as long – luigi7up ...
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How to make a class property? [duplicate]

...re's how I would do this: class ClassPropertyDescriptor(object): def __init__(self, fget, fset=None): self.fget = fget self.fset = fset def __get__(self, obj, klass=None): if klass is None: klass = type(obj) return self.fget.__get__(obj, klass)(...
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List all base classes in a hierarchy of given class?

...gt; >>> import inspect >>> inspect.getmro(B) (<class '__main__.B'>, <class '__main__.A'>, <type 'object'>) share | improve this answer | ...
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Troubleshooting “Illegal mix of collations” error in mysql

...ERE clause will always give the error you posted: WHERE 'A' COLLATE latin1_general_ci = 'A' COLLATE latin1_general_cs Your solution is to specify a shared collation for the two columns within the query. Here is an example that uses the COLLATE clause: SELECT * FROM table ORDER BY key COLLATE lat...
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Annotating text on individual facet in ggplot2

... Typically you'd do something like this: ann_text <- data.frame(mpg = 15,wt = 5,lab = "Text", cyl = factor(8,levels = c("4","6","8"))) p + geom_text(data = ann_text,label = "Text") It should work without specifying the factor variable comple...