Mastering Algorithms with Perl phần 3 pdf

... 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 the tables that follow) ... sensitive quick+mo3 N log N N log N N log N unstable insensitive radix Nk Nk Nk stable insensitive counting N N N stable insensitive bucket N N N stable sensitive The quick+mo3 is quicksort with...

Ngày tải lên: 12/08/2014, 21:20

... Descendants 31 2 Edge and Graph Classes 31 6 CPAN Graph Modules 35 1 9. Strings 35 3 Perl Builtins 35 4 String-Matching Algorithms 35 7 Phonetic Algorithms 38 8 Stemming and Inflection 38 9 Parsing 39 4 Compression 411 10. ... 84 secs ( 63. 77 usr 0.57 sys = 64 .33 cpu) no_temp: 98 secs (84.92 usr 0.42 sys = 85 .33 cpu) The temporary variable results in a 25% speed increase—on...

Ngày tải lên: 12/08/2014, 21:20

... substr($_, rand(length), 0)= '_'; } if (rand() < 0 .33 3) { # Randomly double. $_ .= $_; } if (rand() < 0 .33 3) { # Randomly mirror double. $_ .= reverse $_; Page 116 } if ... nodes. Figure 3- 11 shows a 2 -3 tree. Red-black trees map 2 -3 trees into binary trees. Each binary node is colored either red or black. Internal nodes that were 2-nodes in the 2 -3 tree ar...

Ngày tải lên: 12/08/2014, 21:20

... Turn the bit 1 23 off, the bit 34 5 on, and toggle bit 456. $vector->Bit_Off ( 1 23 ); $vector->Bit_On ( 34 5 ); $vector->bit_flip( 456 ); # Test for bits. print "bit 1 23 is on\n" ... $oak_grovers_south_of_railway->run_list, "\n"; which will reveal to us the following subscriber lists: 1-12, 43- 87 33 ,35 -68 Later we update them: foreach (15 41) { $subs...

Ngày tải lên: 12/08/2014, 21:20

... 2 ac d 3 acd e 3 abe f 3 af This means that the shortest path from the source vertex a to vertex d is a-c-d and that its length is 3. Bellman-Ford Single-Source Shortest Paths Figure 8 -38 . Two ... Hamilton path.break Page 31 1 The Seven Bridges of Königsberg In the following sections, we look at how the SSSPs and APSPs of different types of graphs are computed.break Page 33 3 Figu...

Ngày tải lên: 12/08/2014, 21:20

... == 65 * (256**4 % 835 5967) + 66 * (256* *3 % 835 5967) + 67 * (256**2 % 835 5967) + 68 * 256 + 69 == 65 * 16712192 + 66 * 65282 + 67 * 65 536 + 68 * 256 + 69 == == 37 7804 We may check ... 147, 4 83, 647. The reason for using 2, 147, 4 83, 647, 2 31 - 1, instead of 4,294,967,295, 2 32 - 1, will be explained shortly. The prime we are looking for is 8 ,35 5,967. (For more .....

Ngày tải lên: 12/08/2014, 21:20

... "1. 235 e+ 03& quot; printf "%.4e", 1 234 .5678; # prints "1. 234 6e+ 03& quot; printf "%.5e", 1 234 .5678; # prints "1. 234 57e+ 03& quot; printf "%.6e", 1 234 .5678; ... prints "le+ 03& quot; printf "%.le", 1 234 .5678; # prints "1.2e+ 03& quot; printf "%.2e", 1 234 .5678; # prints "1.23e+ 03& quot; printf "...

Ngày tải lên: 12/08/2014, 21:20

... column a different k.break ** 1 2 3 4 5 0 0 0 0 0 0 1 1 1 1 1 1 2 2 4 3 1 2 3 3 4 2 1 3 4 4 1 4 1 4 ** 1 2 3 4 5 6 0 0 0 0 0 0 0 1 1 1 1 1 1 1 2 2 4 2 4 2 4 3 3 3 3 3 3 3 4 4 4 4 4 4 4 5 5 1 5 1 5 ... into code # for Perl to execute. use Filter::decrypt; ( . . . the rest of the file is encrypted unreadable values . . . ) * In Perl 3 and Perl 4, you supported encr...

Ngày tải lên: 12/08/2014, 21:20

... 1/256 1/256 = 0.0 039 7 8/256 9/256 = 0. 035 2 6 28/256 37 /256 = 0.1445 5 56/256 93/ 256 = 0 .36 33 4 70/256 1 63/ 256 = 0. 636 7 3 56/256 219/256 = 0.8555 2 28/256 247/256 = 0.9648 1 8/256 255/256 = 0.9961 0 ... **= 1 /3; $s = -$s; $t = ($s ? ($q / $s) : 0); return ($s + $t - $a / 3, -0.5 * ($s+$t) + sqrt(-1) * sqrt (3) /2 * ($s-$t) - ($a /3) , -0.5 * ($s+$t) - sqrt(-1) * sqrt...

Ngày tải lên: 12/08/2014, 21:20

... 490 Flow_Ford_Fulkerson( ), 34 7 flow networks, 34 5 -35 0 Floyd-Warshall algorithm, 33 9 -34 2, 35 2 transitive closure, 34 2 -34 4 Ford-Fulkerson method, 34 5 -34 7 forward edges 31 7 FPGA (Field Programmable Gate Array), 5 43 frac( ... inflection, 38 9 -39 3 Lingua: :EN: :Inflect module, 39 3 Lingua: :PT: :Conjugate module, 39 3 Text: :German module, 39 3 Text: :Stem module, 3...

Ngày tải lên: 12/08/2014, 21:20