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Why should hash functions use a prime number modulus?
...shCode % table_length. Here are 2 'statements' that you most probably have read somewhere
If you use a power of 2 for table_length, finding (hashCode(key) % 2^n ) is as simple and quick as (hashCode(key) & (2^n -1)). But if your function to calculate hashCode for a given key isn't good, you wi...
When to use actors instead of messaging solutions such as WebSphere MQ or Tibco Rendezvous?
I've already read the question and answers to What design decisions would favour Scala's Actors instead of JMS? .
3 Answer...
How can I find the data structure that represents mine layout of Minesweeper in memory?
...roc). It can be traced down by CreateWindowEx and RegisterClass calls.
To read:
CreateWindowEx http://msdn.microsoft.com/en-us/library/ms632680%28VS.85%29.aspx
RegisterClass http://msdn.microsoft.com/en-us/library/ms633586%28VS.85%29.aspx
Petzold's Chapter 3 "Windows and Messages"
Open up IDA,...
What is the 'dynamic' type in C# 4.0 used for?
...(foo); // Again, the DLR works its magic
string bar = foo.ToString("c");
Read more feature : http://www.codeproject.com/KB/cs/CSharp4Features.aspx
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Why is there “data” and “newtype” in Haskell? [duplicate]
...ust like normal types
newtype Identity a = Identity a
deriving (Eq, Ord, Read, Show)
-- record syntax is still allowed, but only for one field
newtype State s a = State { runState :: s -> (s, a) }
-- this is *not* allowed:
-- newtype Pair a b = Pair { pairFst :: a, pairSnd :: b }
-- but this ...
How to find list of possible words from a letter matrix [Boggle Solver]
...et turned into a .pyc file. So then I do an import of that instead of the read().splitlines(). With that, on my box, I'm solving it in around a tenth of a second.
– Sean Reifschneider
Nov 6 '10 at 23:00
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What is “Argument-Dependent Lookup” (aka ADL, or “Koenig Lookup”)?
... AT&T and Bell Labs researcher and programmer, Andrew Koenig.
Further reading:
Herb Sutter's Name Lookup on GotW
Standard C++03/11 [basic.lookup.argdep]: 3.4.2 Argument-dependent name lookup.
1 The definition of Koenig lookup is as defined in Josuttis' book, The C++ Standard Library: A T...
Simple explanation of MapReduce?
...
First time, three answers combined is the BEST answer. Read first Nasser's article link (theoretical hi-level) Then chakrit's answer (individual explanation of map-reduce) Now Frank's answer (What is the famous MapReduce idiom.) Thanks to you three . :)
– A...
SQLAlchemy: cascade delete
... @MiloradPop-Tosic I haven't used SQLAlchemy for over 3 years but reading the doc looks like passive_deletes=True is still the right thing.
– Alex Okrushko
Apr 8 '15 at 3:56
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How do you convert a byte array to a hexadecimal string, and vice versa?
...ing. String myValue = 10.ToString("X"); myValue is "A" not "0A". Now go read that string back into bytes, oops you broke it.
– 00jt
Jan 30 '13 at 19:25
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