Mastering Algorithms with Perl phần 10 pot

... 60 quickbubblesort( ), 148-150 quicksort algorithm, 18, 103 , 137-141, 154 hybrid with bubble sort, 148-150 quicksort_recurse( ), 139 quotewords( ), 409 qx( ), 410 R Rabin-Karp algorithm, 362-369 binary mask, ... 554 verifying sender with, 552 probability, 566-598, 610 of at least one, 571 birthday conundrum, 570 conditional probability, 589-590 cryptography and, 526 density functions,...

Ngày tải lên: 12/08/2014, 21:20

... exhaustive search. Encrypted Perl Code You can get Perl to execute code that has been encrypted! (No, not the perverse sort of Perl code that resembles line noise.) For Perl 5, you use the Filter ... ability to filter Perl source code before it is parsed by the Perl interpreter. This filtering can be used for many purposes: • macro expansion with cpp, m4, etc. • decompression w...

Ngày tải lên: 12/08/2014, 21:20

... Muellner coped with our SGML. As an editor and publisher, I've learned (usually the hard way) about the difficulties of editing and disseminating Perl content. Having written a Perl book with another ... Heap 99 Page vi The Heaps Module 99 Future CPAN Modules 101 4. Sorting 102 An Introduction to Sorting 102 All Sorts of Sorts 119 Sorting Algorithms Summary 151 5. Searchi...

Ngày tải lên: 12/08/2014, 21:20

... might still need and letting Perl& apos;s garbage collection deal with the predecessors. In this way, you can use a potentially huge number of elements of the list without requiring that they all ... sorting is, how to do it efficiently using Perl& apos;s own sort function, what comparing actually means, and how you can code your own sort algorithms with Perl. An Introduction to Sor...

Ngày tải lên: 12/08/2014, 21:20

... = -100 if $his == 3; # Win can't really happen, opponent just moved. Page 179 return $self->{score} = 100 if $my == 3; # Count 10 for 2 in line, 1 for 1 in line. $score += ( -10, ... mentioned at the very beginning of this chapter, Perl has implemented its own quicksort implementation since Version 5.004_05. It is a hybrid of quicksort -with- median-of-three (quick+mo3 in th...

Ngày tải lên: 12/08/2014, 21:20

... Bit::Vector->new( 8000 ); # Set the bits 100 0 2000. $vector->Interval_Fill( 100 0, 2000 ); # Clear the bits 1100 1200. $vector->Interval_Empty( 1100 , 1200 ); # Turn the bit 123 off, the ... 216 We can compare the speeds of various membershipnesses with the Benchmark module: use Benchmark; @k = 1 100 0; # The keys. timethese( 100 00, { 'ia' => '@ha{ @k } = (...

Ngày tải lên: 12/08/2014, 21:20

... O ( | E | !) possibilities, which grows extremely quickly. In many algorithms one can pick any edge to follow, but in some algorithms it does matter in which order the adjacent vertices are traversed. ... graphs using a simple text-based format. Edges (and unconnected vertices) are listed separated with with commas. A directed edge is a dash, and an undirected edge is a double-dash. (Ac...

Ngày tải lên: 12/08/2014, 21:20

... we have a match.break 0 s[0] = 100 00000000000000000000000000000 0 s[1] = 1100 0000000000000000000000000000 1 s[0] = 0100 0000000000000000000000000000 1 s[1] = 1 1100 000000000000000000000000000 2 ... ambiguous. Perl, on the other hand, often mimics the fuzzy on-the-spot hand-waving manner of natural language; a "bareword," a string consisting of only alphabetical characters, can...

Ngày tải lên: 12/08/2014, 21:20

... http://www .perl. com/CPAN/modules. 2-D Images There are five CPAN modules for manipulating two-dimensional images: Perl- Gimp, GD, Image::Size, PerlMagick, and PGPLOT.break Page 465 Perl- Gimp The ... in this section. Perl/ Tk is far and away the most feature-filled and portable system. Perl/ Tk Perl/ Tk, by Nick Ing-Simmons, is the best graphical widget toolkit available for Perl. *...

Ngày tải lên: 12/08/2014, 21:20

... x 3 = 100 * log (x)? You can find out that you'll need more cash in five and a half months with the following: sub cashflow { my $x = shift; return unless $x > 0; return ($x ** 3) - (100 ... 64; } with the application of probability theory to particular real-world phenomena. A more colloquial distinction is that probability deals with small amounts of data, and statistics de...

Ngày tải lên: 12/08/2014, 21:20