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What is pseudopolynomial time? How does it differ from polynomial time?
...r of bits required to represent W
i.e. size of input= s =log(W) (log= log base 2)
-> 2^(s)=2^(log(W))
-> 2^(s)=W (because 2^(log(x)) = x)
Now, running time of knapsack= O(nW) = O(n * 2^s)
which is not polynomial.
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Return string without trailing slash
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Based on @vdegenne 's answer... how to strip:
Single trailing slash:
theString.replace(/\/$/, '');
Single or consecutive trailing slashes:
theString.replace(/\/+$/g, '');
Single leading slash:
theString.replace(/^\//, '...
Is non-blocking I/O really faster than multi-threaded blocking I/O? How?
...or the request and a background thread (async) looping to read a file, database or whatever.
– JavierJ
Nov 30 '15 at 18:22
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How to convert char to int?
...use this looks up the integer value in the table of '0' which is then the 'base value'
subtracting your number in char format from this will give you the original number.
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Xcode 4.4 error - Timed out waiting for app to launch
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Apple should read stackoverflow and fix their tools based on answers like this!
– viggio24
Oct 12 '12 at 11:01
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How do I set up email confirmation with Devise?
...ou include confirmable in Model.devise call
class User < ActiveRecord::Base
devise :database_authenticatable, :confirmable ...
end
2. Make sure you add confirmable to the user migration
create_table :users do |t|
t.database_authenticatable
t.confirmable
...
end
If you're using devis...
How do I get the fragment identifier (value after hash #) from a URL?
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Based on A.K's code, here is a Helper Function. JS Fiddle Here (http://jsfiddle.net/M5vsL/1/) ...
// Helper Method Defined Here.
(function (helper, $) {
// This is now a utility function to "Get the Document Hash"
he...
“X-UA-Compatible” content=“IE=9; IE=8; IE=7; IE=EDGE”
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Based on that meta tag, IE11 would not emulate IE8, it would assume IE11 (as that was given in the semicolon-separated list). That list would also explain the fallback to IE8 standards because IE10 was unaware of the existenc...
How is this fibonacci-function memoized?
...t one.
It's essentially a clever and low-rent form of dynamic programming based on GHC's lazy semantics. I think the standard only specifies that it has to be non-strict, so a compliant compiler could potentially compile this code to not memoize. However, in practice, every reasonable compiler is g...
Is there a Rake equivalent in Python?
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Waf is a Python-based framework for configuring, compiling and installing applications. It derives from the concepts of other build tools such as Scons, Autotools, CMake or Ant.
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