From e9411bdc7658179af3f23d3ada7970323547a7d7 Mon Sep 17 00:00:00 2001 From: Mohammad S Anwar Date: Mon, 10 Jan 2022 08:40:22 +0000 Subject: - Added template for week 147. --- challenge-147/3ter/README | 1 + challenge-147/LoneWolfiNTj/README | 1 + challenge-147/aaron-rowe/README | 1 + challenge-147/aaron-sherman/README | 1 + challenge-147/aaronreidsmith/README | 1 + challenge-147/abigail/README.md | 52 +++++ challenge-147/adam-russell/README | 1 + challenge-147/adherzog/README | 1 + challenge-147/ailbhe-tweedie/README | 1 + challenge-147/alex-daniel/README | 1 + challenge-147/alexander-karelas/README | 1 + challenge-147/alexander-pankoff/README | 1 + challenge-147/alicia-bielsa/README | 1 + challenge-147/andinus/README | 51 +++++ challenge-147/andrezgz/README | 1 + challenge-147/anton-fedotov/README | 1 + challenge-147/antonio-gamiz/README | 1 + challenge-147/arne-sommer/README | 1 + challenge-147/arpad-toth/README | 1 + challenge-147/ash/README | 1 + challenge-147/athanasius/README | 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create mode 100644 challenge-147/wambash/README create mode 100644 challenge-147/wanderdoc/README create mode 100644 challenge-147/will-west/README create mode 100644 challenge-147/william-gilmore/README create mode 100644 challenge-147/wlmb/README create mode 100644 challenge-147/x1mandi/README create mode 100644 challenge-147/xkr47/README create mode 100644 challenge-147/xliff/README create mode 100644 challenge-147/yary-h/README create mode 100644 challenge-147/yet-ebreo/README create mode 100644 challenge-147/yozen-hernandez/README create mode 100644 challenge-147/ziameraj16/README.md create mode 100644 challenge-147/ziameraj16/kotlin/META-INF/main.kotlin_module create mode 100644 challenge-147/ziruzavar/README (limited to 'challenge-147') diff --git a/challenge-147/3ter/README b/challenge-147/3ter/README new file mode 100644 index 0000000000..8c594431f3 --- /dev/null +++ b/challenge-147/3ter/README @@ -0,0 +1 @@ +Solutions by 3ter. diff --git a/challenge-147/LoneWolfiNTj/README b/challenge-147/LoneWolfiNTj/README new file mode 100755 index 0000000000..bf42ad2482 --- /dev/null +++ b/challenge-147/LoneWolfiNTj/README @@ -0,0 +1 @@ +Solution by Robbie Hatley (github user "LoneWolfiNTj"). \ No newline at end of file diff --git a/challenge-147/aaron-rowe/README b/challenge-147/aaron-rowe/README new file mode 100644 index 0000000000..e14e0782fb --- /dev/null +++ b/challenge-147/aaron-rowe/README @@ -0,0 +1 @@ +Solutions by Aaron Rowe. diff --git a/challenge-147/aaron-sherman/README b/challenge-147/aaron-sherman/README new file mode 100644 index 0000000000..14ec31f570 --- /dev/null +++ b/challenge-147/aaron-sherman/README @@ -0,0 +1 @@ +Solutions by Aaron Sherman. diff --git a/challenge-147/aaronreidsmith/README b/challenge-147/aaronreidsmith/README new file mode 100644 index 0000000000..2fcfe1fdcc --- /dev/null +++ b/challenge-147/aaronreidsmith/README @@ -0,0 +1 @@ +Solution by Aaron Smith diff --git a/challenge-147/abigail/README.md b/challenge-147/abigail/README.md new file mode 100644 index 0000000000..f819e6f82c --- /dev/null +++ b/challenge-147/abigail/README.md @@ -0,0 +1,52 @@ +# Solutions by Abigail + +## Part 1 + +* [AWK](awk/ch-1.awk) +* [Bash](bash/ch-1.sh) +* [Basic](basic/ch-1.bas) +* [Bc](bc/ch-1.bc) +* [Befunge-93](befunge-93/ch-1.bf93) +* [C](c/ch-1.c) +* [Cobol](cobol/ch-1.cb) +* [Csh](csh/ch-1.csh) +* [Erlang](lua/ch-1.erl) +* [Forth](lua/ch-1.fs) +* [Fortran](fortran/ch-1.f90) +* [Go](go/ch-1.go) +* [Java](java/ch-1.java) +* [Lua](lua/ch-1.lua) +* [m4](m4/ch-1.m4) +* [MMIX](mmix/ch-1.mms) +* [Node.js](node/ch-1.js) +* [OCaml](ocaml/ch-1.ml) +* [Pascal](pascal/ch-1.p) +* [Perl](perl/ch-1.pl) +* [PHP](php/ch-1.php) +* [PostScript](postscript/ch-1.ps) +* [Python](python/ch-1.py) +* [R](r/ch-1.r) +* [Rexx](rexx/ch-1.rexx) +* [Ruby](ruby/ch-1.rb) +* [Scheme](scheme/ch-1.scm) +* [Sed](sed/ch-1.sed) +* [SQL](sql/ch-1.sql) +* [Tcl](tcl/ch-1.tcl) + +## Part 2 + +* [AWK](awk/ch-2.awk) +* [Bash](bash/ch-2.sh) +* [bc](bc/ch-2.bc) +* [C](c/ch-2.c) +* [Go](go/ch-2.go) +* [Java](java/ch-2.java) +* [Lua](lua/ch-2.lua) +* [Node.js](node/ch-2.js) +* [Pascal](pascal/ch-2.p) +* [Perl](perl/ch-2.pl) +* [Python](python/ch-2.py) +* [R](r/ch-2.r) +* [Ruby](ruby/ch-2.rb) +* [Tcl](tcl/ch-2.tcl) +* [Scheme](scheme/ch-2.scm) diff --git a/challenge-147/adam-russell/README b/challenge-147/adam-russell/README new file mode 100644 index 0000000000..1d2e2957c5 --- /dev/null +++ b/challenge-147/adam-russell/README @@ -0,0 +1 @@ +Solution by Adam Russell diff --git a/challenge-147/adherzog/README b/challenge-147/adherzog/README new file mode 100644 index 0000000000..b59913be6c --- /dev/null +++ b/challenge-147/adherzog/README @@ -0,0 +1 @@ +Solutions by Adam Herzog. diff --git a/challenge-147/ailbhe-tweedie/README b/challenge-147/ailbhe-tweedie/README new file mode 100644 index 0000000000..36d4034b70 --- /dev/null +++ b/challenge-147/ailbhe-tweedie/README @@ -0,0 +1 @@ +Solution by Ailbhe Tweedie diff --git a/challenge-147/alex-daniel/README b/challenge-147/alex-daniel/README new file mode 100644 index 0000000000..65550789bd --- /dev/null +++ b/challenge-147/alex-daniel/README @@ -0,0 +1 @@ +Solution by Alex Daniel. diff --git a/challenge-147/alexander-karelas/README b/challenge-147/alexander-karelas/README new file mode 100644 index 0000000000..3de9fce8d9 --- /dev/null +++ b/challenge-147/alexander-karelas/README @@ -0,0 +1 @@ +Solution by Alexander Karelas diff --git a/challenge-147/alexander-pankoff/README b/challenge-147/alexander-pankoff/README new file mode 100644 index 0000000000..41f67807ac --- /dev/null +++ b/challenge-147/alexander-pankoff/README @@ -0,0 +1 @@ +Solution by Alexander Pankoff diff --git a/challenge-147/alicia-bielsa/README b/challenge-147/alicia-bielsa/README new file mode 100644 index 0000000000..c5187874c3 --- /dev/null +++ b/challenge-147/alicia-bielsa/README @@ -0,0 +1 @@ +Solution by Alicia Beilsa. diff --git a/challenge-147/andinus/README b/challenge-147/andinus/README new file mode 100644 index 0000000000..bd1dd6e3ce --- /dev/null +++ b/challenge-147/andinus/README @@ -0,0 +1,51 @@ + ━━━━━━━━━━━━━━━ + CHALLENGE 135 + + Andinus + ━━━━━━━━━━━━━━━ + + + 2021-10-22 + + + + + +Task 1 - Middle 3-digits +════════════════════════ + + You are given an integer. + + Write a script find out the middle 3-digits of the given integer, if + possible otherwise throw sensible error. + + ┌──── + │ Input: $n = 1234567 + │ Output: 345 + │ + │ Input: $n = -123 + │ Output: 123 + │ + │ Input: $n = 1 + │ Output: too short + │ + │ Input: $n = 10 + │ Output: even number of digits + └──── + + +Raku +──── + + Input's absolute value is taken because the sign is meaningless here. + To get middle 3-digits we take 3 digits from `$n.chars div 2 - 1' + position, `-1' because Arrays are 0-indexed. It's guaranteed that we + have odd number of digits so `div 2' will land us on left of middle + digit, we just take 3 digits from there. + + ┌──── + │ $n = abs $n; + │ die "too short" if $n.chars < 3; + │ die "even number of digits" if $n.chars %% 2; + │ put $n.substr($n.chars div 2 - 1, 3); + └──── diff --git a/challenge-147/andrezgz/README b/challenge-147/andrezgz/README new file mode 100644 index 0000000000..f4fd0da88e --- /dev/null +++ b/challenge-147/andrezgz/README @@ -0,0 +1 @@ +Solution by Andrezgz diff --git a/challenge-147/anton-fedotov/README b/challenge-147/anton-fedotov/README new file mode 100644 index 0000000000..f7c4f6deed --- /dev/null +++ b/challenge-147/anton-fedotov/README @@ -0,0 +1 @@ +Solutions by Anton Fedotov. diff --git a/challenge-147/antonio-gamiz/README b/challenge-147/antonio-gamiz/README new file mode 100644 index 0000000000..1f5ed5871a --- /dev/null +++ b/challenge-147/antonio-gamiz/README @@ -0,0 +1 @@ +Solution by Antonio Gamiz diff --git a/challenge-147/arne-sommer/README b/challenge-147/arne-sommer/README new file mode 100644 index 0000000000..b5d88e4df4 --- /dev/null +++ b/challenge-147/arne-sommer/README @@ -0,0 +1 @@ +Solution by Arne Sommer. diff --git a/challenge-147/arpad-toth/README b/challenge-147/arpad-toth/README new file mode 100644 index 0000000000..6661dd82c1 --- /dev/null +++ b/challenge-147/arpad-toth/README @@ -0,0 +1 @@ +Solution by Arpad Toth diff --git a/challenge-147/ash/README b/challenge-147/ash/README new file mode 100644 index 0000000000..318b1bfb41 --- /dev/null +++ b/challenge-147/ash/README @@ -0,0 +1 @@ +Solutions by Andrew Shitov diff --git a/challenge-147/athanasius/README b/challenge-147/athanasius/README new file mode 100644 index 0000000000..cc357fda4a --- /dev/null +++ b/challenge-147/athanasius/README @@ -0,0 +1 @@ +Solution by Athanasius diff --git a/challenge-147/aubrey-quarcoo/README b/challenge-147/aubrey-quarcoo/README new file mode 100644 index 0000000000..8e63a2c1f5 --- /dev/null +++ b/challenge-147/aubrey-quarcoo/README @@ -0,0 +1 @@ +Solution by Aubrey Quarcoo diff --git a/challenge-147/aviral-goel/README b/challenge-147/aviral-goel/README new file mode 100644 index 0000000000..e64ee14512 --- /dev/null +++ b/challenge-147/aviral-goel/README @@ -0,0 +1 @@ +Solutions by Aviral Goel. diff --git a/challenge-147/belmark-caday/README b/challenge-147/belmark-caday/README new file mode 100644 index 0000000000..6726590965 --- /dev/null +++ b/challenge-147/belmark-caday/README @@ -0,0 +1 @@ +Solutions by Belmark Caday. diff --git a/challenge-147/ben-davies/README.md b/challenge-147/ben-davies/README.md new file mode 100644 index 0000000000..77158344c9 --- /dev/null +++ b/challenge-147/ben-davies/README.md @@ -0,0 +1 @@ +Solution by Ben Davies diff --git a/challenge-147/bill-palmer/README b/challenge-147/bill-palmer/README new file mode 100644 index 0000000000..08ec849a41 --- /dev/null +++ b/challenge-147/bill-palmer/README @@ -0,0 +1 @@ +Solution by Bill Palmer. diff --git a/challenge-147/bkb/README b/challenge-147/bkb/README new file mode 100644 index 0000000000..4721993bb3 --- /dev/null +++ b/challenge-147/bkb/README @@ -0,0 +1 @@ +Solution by Ben Bullock. diff --git a/challenge-147/bob-kleemann/README b/challenge-147/bob-kleemann/README new file mode 100644 index 0000000000..78680e4035 --- /dev/null +++ b/challenge-147/bob-kleemann/README @@ -0,0 +1 @@ +Solution by Bob Kleemann diff --git a/challenge-147/bob-lied/README b/challenge-147/bob-lied/README new file mode 100644 index 0000000000..c231e3a589 --- /dev/null +++ b/challenge-147/bob-lied/README @@ -0,0 +1,3 @@ +Solutions to weekly challenge 138 by Bob Lied + +https://perlweeklychallenge.org/blog/perl-weekly-challenge-138/ diff --git a/challenge-147/brtastic/README b/challenge-147/brtastic/README new file mode 100644 index 0000000000..0fbe79fd6f --- /dev/null +++ b/challenge-147/brtastic/README @@ -0,0 +1 @@ +Solutions by Bartosz Jarzyna. diff --git a/challenge-147/bruce-gray/README b/challenge-147/bruce-gray/README new file mode 100644 index 0000000000..6511220e4d --- /dev/null +++ b/challenge-147/bruce-gray/README @@ -0,0 +1,33 @@ +Solutions by Bruce Gray. + +For ch-2, the Perl and Raku programs can take rationals on the command-line for experimentation, +or will run their test suites if invoked without arguments. + +Sample runs: +$ perl perl/ch-1.pl + 104743 + +$ raku raku/ch-1.raku + 104743 + +$ perl perl/ch-2.pl 4817/5410 + 4817/5410 has CW parent,grandparent of: 4817/593,4224/593 + +$ raku raku/ch-2.raku 4817/5410 + (4817/593 4224/593) + +$ prove perl/ch-2.pl + perl/ch-2.pl .. ok + All tests successful. + Files=1, Tests=202, 0 wallclock secs ( 0.04 usr 0.01 sys + 0.09 cusr 0.01 csys = 0.15 CPU) + Result: PASS + +$ prove -e raku raku/ch-2.raku + raku/ch-2.raku .. ok + All tests successful. + Files=1, Tests=202, 3 wallclock secs ( 0.05 usr 0.00 sys + 2.72 cusr 0.13 csys = 2.90 CPU) + Result: PASS + +$ perl -MMath::PlanePath::RationalsTree -wE 'my $CW = Math::PlanePath::RationalsTree->new( tree_type => "CW" ); say join "/", $CW->n_to_xy( $CW->tree_n_parent( $CW->xy_to_n(@ARGV) ) );' 4817 5410 + 4817/593 + (Fleshed out in ch-2_via_module.pl) diff --git a/challenge-147/bruno-ramos/README b/challenge-147/bruno-ramos/README new file mode 100644 index 0000000000..9d631dad8f --- /dev/null +++ b/challenge-147/bruno-ramos/README @@ -0,0 +1 @@ +Solutions by Bruno Ramos. diff --git a/challenge-147/burkhard-nickels/README b/challenge-147/burkhard-nickels/README new file mode 100644 index 0000000000..f5e16bb98b --- /dev/null +++ b/challenge-147/burkhard-nickels/README @@ -0,0 +1 @@ +Solutions by Burkhard Nickels. diff --git a/challenge-147/bwva/README b/challenge-147/bwva/README new file mode 100644 index 0000000000..ee6a7d7dc1 --- /dev/null +++ b/challenge-147/bwva/README @@ -0,0 +1 @@ +Solution(s) by bwva (Bruce Van Allen) diff --git a/challenge-147/cheok-yin-fung/README b/challenge-147/cheok-yin-fung/README new file mode 100644 index 0000000000..4413b13ada --- /dev/null +++ b/challenge-147/cheok-yin-fung/README @@ -0,0 +1 @@ +Solutions by Cheok-Yin Fung. diff --git a/challenge-147/christian-jaeger/README b/challenge-147/christian-jaeger/README new file mode 100644 index 0000000000..4ef4f11c10 --- /dev/null +++ b/challenge-147/christian-jaeger/README @@ -0,0 +1 @@ +Solution by Christian Jaeger diff --git a/challenge-147/cliveholloway/README b/challenge-147/cliveholloway/README new file mode 100644 index 0000000000..b69201296e --- /dev/null +++ b/challenge-147/cliveholloway/README @@ -0,0 +1 @@ +Solution by Clive Holloway diff --git a/challenge-147/colin-crain/README b/challenge-147/colin-crain/README new file mode 100644 index 0000000000..2a5d87e97d --- /dev/null +++ b/challenge-147/colin-crain/README @@ -0,0 +1 @@ +Solutions by Colin Crain. diff --git a/challenge-147/conor-hoekstra/README b/challenge-147/conor-hoekstra/README new file mode 100644 index 0000000000..d04e921681 --- /dev/null +++ b/challenge-147/conor-hoekstra/README @@ -0,0 +1 @@ +Solutions by Conor Hoekstra. diff --git a/challenge-147/craig/README b/challenge-147/craig/README new file mode 100644 index 0000000000..18088481eb --- /dev/null +++ b/challenge-147/craig/README @@ -0,0 +1 @@ +Solutions by Craig. diff --git a/challenge-147/creewick/README b/challenge-147/creewick/README new file mode 100644 index 0000000000..c490e4fb80 --- /dev/null +++ b/challenge-147/creewick/README @@ -0,0 +1 @@ +Solutions by Creewick. diff --git a/challenge-147/cristian-heredia/README b/challenge-147/cristian-heredia/README new file mode 100644 index 0000000000..c53da8a54c --- /dev/null +++ b/challenge-147/cristian-heredia/README @@ -0,0 +1 @@ +Solutions by Cristina Heredia. diff --git a/challenge-147/cybersnyder/README b/challenge-147/cybersnyder/README new file mode 100644 index 0000000000..b5afea93b0 --- /dev/null +++ b/challenge-147/cybersnyder/README @@ -0,0 +1 @@ +Solution by Rich Snyder aka cybersnyder diff --git a/challenge-147/daniel-mantovani/README b/challenge-147/daniel-mantovani/README new file mode 100644 index 0000000000..ed538216f2 --- /dev/null +++ b/challenge-147/daniel-mantovani/README @@ -0,0 +1 @@ +Solution by Daniel Mantovani diff --git a/challenge-147/daniel-mita/README b/challenge-147/daniel-mita/README new file mode 100644 index 0000000000..37339f491f --- /dev/null +++ b/challenge-147/daniel-mita/README @@ -0,0 +1 @@ +Solution by Daniel Mita diff --git a/challenge-147/darren-bottin/README b/challenge-147/darren-bottin/README new file mode 100644 index 0000000000..6c792afe8e --- /dev/null +++ b/challenge-147/darren-bottin/README @@ -0,0 +1 @@ +Solutions by Darren Bottin. diff --git a/challenge-147/dave-cross/README b/challenge-147/dave-cross/README new file mode 100644 index 0000000000..04b1b0623b --- /dev/null +++ b/challenge-147/dave-cross/README @@ -0,0 +1 @@ +Solution by Dave Cross diff --git a/challenge-147/dave-jacoby/README b/challenge-147/dave-jacoby/README new file mode 100644 index 0000000000..7c06689f16 --- /dev/null +++ b/challenge-147/dave-jacoby/README @@ -0,0 +1 @@ +Solution by Dave Jacoby diff --git a/challenge-147/david-kayal/README b/challenge-147/david-kayal/README new file mode 100644 index 0000000000..66f8615260 --- /dev/null +++ b/challenge-147/david-kayal/README @@ -0,0 +1 @@ +Solution by David Kayal diff --git a/challenge-147/david-santiago/README b/challenge-147/david-santiago/README new file mode 100644 index 0000000000..07584efe1d --- /dev/null +++ b/challenge-147/david-santiago/README @@ -0,0 +1 @@ +Solutions by David Santiago. diff --git a/challenge-147/ddobbelaere/README b/challenge-147/ddobbelaere/README new file mode 100644 index 0000000000..36f8cdcd67 --- /dev/null +++ b/challenge-147/ddobbelaere/README @@ -0,0 +1 @@ +Solution by Dieter Dobbelaere diff --git a/challenge-147/deadmarshal/README b/challenge-147/deadmarshal/README new file mode 100644 index 0000000000..243097dede --- /dev/null +++ b/challenge-147/deadmarshal/README @@ -0,0 +1 @@ +Solution by Ali Moradi \ No newline at end of file diff --git a/challenge-147/denis-yurashku/README b/challenge-147/denis-yurashku/README new file mode 100644 index 0000000000..2fea994000 --- /dev/null +++ b/challenge-147/denis-yurashku/README @@ -0,0 +1 @@ +Solutions by Denis Yurashku. diff --git a/challenge-147/dms061/readme b/challenge-147/dms061/readme new file mode 100644 index 0000000000..e2684c7d25 --- /dev/null +++ b/challenge-147/dms061/readme @@ -0,0 +1,8 @@ +Solutions by David Schwartz +Last updated: 5/16/2021 + +Contains: + Solutions for questions 1 and 2 in perl. + +The folders also contain examples of output generated from running the program. + diff --git a/challenge-147/donald-hunter/README b/challenge-147/donald-hunter/README new file mode 100644 index 0000000000..2eef878f17 --- /dev/null +++ b/challenge-147/donald-hunter/README @@ -0,0 +1 @@ +Solutions by Donald Hunter. diff --git a/challenge-147/doug-schrag/README b/challenge-147/doug-schrag/README new file mode 100644 index 0000000000..bf8a10ffb4 --- /dev/null +++ b/challenge-147/doug-schrag/README @@ -0,0 +1 @@ +Solution by Doug Schrag diff --git a/challenge-147/dracos/README b/challenge-147/dracos/README new file mode 100644 index 0000000000..a9a6517a03 --- /dev/null +++ b/challenge-147/dracos/README @@ -0,0 +1 @@ +Solutions by Matthew Somerville. diff --git a/challenge-147/duane-powell/README b/challenge-147/duane-powell/README new file mode 100644 index 0000000000..3445422743 --- /dev/null +++ b/challenge-147/duane-powell/README @@ -0,0 +1 @@ +Solutions by Duane Powell. diff --git a/challenge-147/duncan-c-white/README b/challenge-147/duncan-c-white/README new file mode 100644 index 0000000000..aae0f64482 --- /dev/null +++ b/challenge-147/duncan-c-white/README @@ -0,0 +1,39 @@ +TASK #1 - 10001st Prime Number + +Write a script to generate the 10001st prime number. + +(Remember that 2 is the 1st prime number). + + +MY NOTES: Very easy, especially (tada) if you happen to have a prime +generating module that you've already used several times in these +challenges.. + + +TASK #2 - Curious Fraction Tree + +Consider the following Curious Fraction Tree: + +[diagram in which the root is 1/1, and for each element N/D +it's right child is N+D/D, and it's left child is N/N+D] + +You are given a N/D member of the tree created similar to the above sample. + +Write a script to find out the parent and grandparent of the given member. + +Example 1: + + Input: $member = '3/5'; + Output: parent = '3/2' and grandparent = '1/2' + +Example 2: + + Input: $member = '4/3'; + Output: parent = '1/3' and grandparent = '1/2' + +MY NOTES: hmm.. having determined the left and right child rules +above, I worked out that given a child N/D the parent rule is +"if D>N then (N, D-N) else (N-D, D)" + +So very easy using that rule twice (and why not go all the way up to +the root while we're doing it). diff --git a/challenge-147/e-choroba/README b/challenge-147/e-choroba/README new file mode 100644 index 0000000000..efff637bcb --- /dev/null +++ b/challenge-147/e-choroba/README @@ -0,0 +1 @@ +Solutions by E. Choroba. diff --git a/challenge-147/ealvar3z/README b/challenge-147/ealvar3z/README new file mode 100644 index 0000000000..a50c065308 --- /dev/null +++ b/challenge-147/ealvar3z/README @@ -0,0 +1 @@ +Solution by ealvar3z diff --git a/challenge-147/eddy-hs/README b/challenge-147/eddy-hs/README new file mode 100644 index 0000000000..0ed51d222d --- /dev/null +++ b/challenge-147/eddy-hs/README @@ -0,0 +1 @@ +Solution by Eddy HS diff --git a/challenge-147/eric-cheung/README b/challenge-147/eric-cheung/README new file mode 100644 index 0000000000..1bf6db4498 --- /dev/null +++ b/challenge-147/eric-cheung/README @@ -0,0 +1 @@ +Solutions by Eric Cheung. diff --git a/challenge-147/fabrizio-poggi/README b/challenge-147/fabrizio-poggi/README new file mode 100644 index 0000000000..3c17b29182 --- /dev/null +++ b/challenge-147/fabrizio-poggi/README @@ -0,0 +1 @@ +Solutions by Fabrizio Poggi. diff --git a/challenge-147/feng-chang/README b/challenge-147/feng-chang/README new file mode 100644 index 0000000000..74e56de3ed --- /dev/null +++ b/challenge-147/feng-chang/README @@ -0,0 +1 @@ +Solutions by Feng Chang. diff --git a/challenge-147/finanalyst/README b/challenge-147/finanalyst/README new file mode 100644 index 0000000000..15f7652e32 --- /dev/null +++ b/challenge-147/finanalyst/README @@ -0,0 +1 @@ +Solution by Richard Hainsworth, aka finanalyst diff --git a/challenge-147/finley/README b/challenge-147/finley/README new file mode 100644 index 0000000000..f08a121076 --- /dev/null +++ b/challenge-147/finley/README @@ -0,0 +1 @@ +Solution by Finley diff --git a/challenge-147/fjwhittle/README b/challenge-147/fjwhittle/README new file mode 100644 index 0000000000..7dcc95e189 --- /dev/null +++ b/challenge-147/fjwhittle/README @@ -0,0 +1 @@ +Solution by Francis Whittle diff --git a/challenge-147/frankivo/README b/challenge-147/frankivo/README new file mode 100644 index 0000000000..681b15b36c --- /dev/null +++ b/challenge-147/frankivo/README @@ -0,0 +1 @@ +Solution by Frank Oosterhuis. diff --git a/challenge-147/fred-zinn/README b/challenge-147/fred-zinn/README new file mode 100644 index 0000000000..17bac4f094 --- /dev/null +++ b/challenge-147/fred-zinn/README @@ -0,0 +1 @@ +Solution by Fred Zinn diff --git a/challenge-147/freddie-b/README b/challenge-147/freddie-b/README new file mode 100644 index 0000000000..823d7474b5 --- /dev/null +++ b/challenge-147/freddie-b/README @@ -0,0 +1 @@ +Solution by Freddie B diff --git a/challenge-147/garrett-goebel/README b/challenge-147/garrett-goebel/README new file mode 100644 index 0000000000..a8aa246dbb --- /dev/null +++ b/challenge-147/garrett-goebel/README @@ -0,0 +1 @@ +Solution by Garrett Goebel diff --git a/challenge-147/giuseppe-terlizzi/README b/challenge-147/giuseppe-terlizzi/README new file mode 100644 index 0000000000..0bff2a945c --- /dev/null +++ b/challenge-147/giuseppe-terlizzi/README @@ -0,0 +1 @@ +Solutions by Giuseppe Di Terlizzi. diff --git a/challenge-147/gugod/README b/challenge-147/gugod/README new file mode 100644 index 0000000000..509fd4c50c --- /dev/null +++ b/challenge-147/gugod/README @@ -0,0 +1 @@ +Solutions by Kang-min Liu. diff --git a/challenge-147/gugod/rust/.gitignore b/challenge-147/gugod/rust/.gitignore new file mode 100644 index 0000000000..ac77297bfe --- /dev/null +++ b/challenge-147/gugod/rust/.gitignore @@ -0,0 +1,2 @@ +ch-1 +ch-2 diff --git a/challenge-147/guillermo-ramos/README b/challenge-147/guillermo-ramos/README new file mode 100644 index 0000000000..a39eb01bff --- /dev/null +++ b/challenge-147/guillermo-ramos/README @@ -0,0 +1 @@ +Solution by Guillermo Ramos. diff --git a/challenge-147/gurunandan-bhat/README b/challenge-147/gurunandan-bhat/README new file mode 100644 index 0000000000..495f4cfafa --- /dev/null +++ b/challenge-147/gurunandan-bhat/README @@ -0,0 +1 @@ +Solutions by Gurunandan Bhat. diff --git a/challenge-147/gustavo-chaves/README b/challenge-147/gustavo-chaves/README new file mode 100644 index 0000000000..a66bbbf8a3 --- /dev/null +++ b/challenge-147/gustavo-chaves/README @@ -0,0 +1 @@ +Solution by Gustavo Chaves diff --git a/challenge-147/hatorikibble/README b/challenge-147/hatorikibble/README new file mode 100644 index 0000000000..51a9cd4411 --- /dev/null +++ b/challenge-147/hatorikibble/README @@ -0,0 +1 @@ +Solution by Peter Mayr diff --git a/challenge-147/hauke-d/README b/challenge-147/hauke-d/README new file mode 100644 index 0000000000..e201aa0abc --- /dev/null +++ b/challenge-147/hauke-d/README @@ -0,0 +1 @@ +Solutions by Hauke Dämpfling. diff --git a/challenge-147/henry-wong/README b/challenge-147/henry-wong/README new file mode 100644 index 0000000000..3d63a6f0be --- /dev/null +++ b/challenge-147/henry-wong/README @@ -0,0 +1 @@ +Solution by Henry Wong diff --git a/challenge-147/hstejas/README b/challenge-147/hstejas/README new file mode 100644 index 0000000000..969c5c0569 --- /dev/null +++ b/challenge-147/hstejas/README @@ -0,0 +1 @@ +Solution by Tejas diff --git a/challenge-147/iangoodnight/README.md b/challenge-147/iangoodnight/README.md new file mode 100644 index 0000000000..2a4a23a28c --- /dev/null +++ b/challenge-147/iangoodnight/README.md @@ -0,0 +1 @@ +Solution by Ian Goodnight diff --git a/challenge-147/ianrifkin/README b/challenge-147/ianrifkin/README new file mode 100644 index 0000000000..2d26297fb9 --- /dev/null +++ b/challenge-147/ianrifkin/README @@ -0,0 +1 @@ +Solution by Ian Rifkin. \ No newline at end of file diff --git a/challenge-147/izifresh/README b/challenge-147/izifresh/README new file mode 100644 index 0000000000..aedce7c408 --- /dev/null +++ b/challenge-147/izifresh/README @@ -0,0 +1 @@ +Solution by izifresh \ No newline at end of file diff --git a/challenge-147/jacques-guinnebault/README b/challenge-147/jacques-guinnebault/README new file mode 100644 index 0000000000..9d3e7c037f --- /dev/null +++ b/challenge-147/jacques-guinnebault/README @@ -0,0 +1 @@ +Solution by Jacques Guinnebault. diff --git a/challenge-147/jaime/README b/challenge-147/jaime/README new file mode 100644 index 0000000000..007cb58459 --- /dev/null +++ b/challenge-147/jaime/README @@ -0,0 +1,59 @@ +# Task #1 + +Write a script to display months from the year 1900 to 2019 where you +find 5 weekends i.e. 5 Friday, 5 Saturday and 5 Sunday. + +## Solution + +Months that contain five full weekends have 31 days and start on a Friday. Use `cal` to display March 2019 as an example. + +``` +#$ cal -h -m 3 2019 # cal is a UNIX utility + March 2019 +Su Mo Tu We Th Fr Sa + 1 2 + 3 4 5 6 7 8 9 +10 11 12 13 14 15 16 +17 18 19 20 21 22 23 +24 25 26 27 28 29 30 +31 +``` + +The solution runs `cal` and displays months that match this unique +layout. + +# Task #2 + +Write a script that can wrap the given paragraph at a specified column +using the greedy algorithm. + +A simple way to do word wrapping is to use a greedy algorithm that +puts as many words on a line as possible, then moving on to the next +line to do the same until there are no more words left to place. This +method is used by many modern word processors, such as OpenOffice.org +Writer and Microsoft Word[citation needed]. This algorithm always uses +the minimum possible number of lines but may lead to lines of widely +varying lengths. The following pseudocode implements this algorithm: + +``` +SpaceLeft := LineWidth +for each Word in Text + if (Width(Word) + SpaceWidth) > SpaceLeft + insert line break before Word in Text + SpaceLeft := LineWidth - Width(Word) + else + SpaceLeft := SpaceLeft - (Width(Word) + SpaceWidth) +``` + +Where LineWidth is the width of a line, SpaceLeft is the remaining +width of space on the line to fill, SpaceWidth is the width of a +single space character, Text is the input text to iterate over and +Word is a word in this text. + +## Solution + +The solution follows the recommended pseudocode. Minor improvements +avoid trailing whitespace. + +The script uses `Text::ParseWords::shellwords` from the standard +library to extract chunks of words from ``. diff --git a/challenge-147/jake/README b/challenge-147/jake/README new file mode 100644 index 0000000000..2e6084589f --- /dev/null +++ b/challenge-147/jake/README @@ -0,0 +1 @@ +Solutions by Jake. diff --git a/challenge-147/jaldhar-h-vyas/README b/challenge-147/jaldhar-h-vyas/README new file mode 100644 index 0000000000..7dce927eca --- /dev/null +++ b/challenge-147/jaldhar-h-vyas/README @@ -0,0 +1 @@ +Solution by Jaldhar H. Vyas diff --git a/challenge-147/james-raspass/README b/challenge-147/james-raspass/README new file mode 100644 index 0000000000..e8b9d803c6 --- /dev/null +++ b/challenge-147/james-raspass/README @@ -0,0 +1 @@ +Solution by James Raspass. diff --git a/challenge-147/james-smith/README.md b/challenge-147/james-smith/README.md new file mode 100644 index 0000000000..a0c9ed8cc0 --- /dev/null +++ b/challenge-147/james-smith/README.md @@ -0,0 +1,112 @@ +[< Previous 145](https://github.com/drbaggy/perlweeklychallenge-club/tree/master/challenge-145/james-smith) | +[Next 147 >](https://github.com/drbaggy/perlweeklychallenge-club/tree/master/challenge-147/james-smith) +# Perl Weekly Challenge #146 + +You can find more information about this weeks, and previous weeks challenges at: + + https://theweeklychallenge.org/ + +If you are not already doing the challenge - it is a good place to practise your +**perl** or **raku**. If it is not **perl** or **raku** you develop in - you can +submit solutions in whichever language you feel comfortable with. + +You can find the solutions here on github at: + +https://github.com/drbaggy/perlweeklychallenge-club/tree/master/challenge-146/james-smith + +# Challenge 1 - 10,001st Prime Number + +***Write a script to generate the 10,001st prime number.*** + +## The solution + +We could use a Prime module, but finding primes is not that difficult so we will roll our own generator. + +```perl +my($c,@p)=(5,3); +for(;@p<10000;$c+=2){ + ($_*$_>$c)?((push@p,$c),last):$c%$_||last for@p; +} +say$p[-1]; +``` + +The crux of the code is in the `for @p` line. This sees if a given odd number is prime. + +We loop through all the primes up to and including the square root of the value we are checking. +If we don't find a prime factor by then we push the new value to the primes list, and go on to +try the next number. If we find a factor we skip the rest of the loop and go on to try the next number. + +We stop when we have 10,000 records in the array (as we don't include the prime number 2 in the list - we +explicitly exclude even numbers in the list we search over), so the last element is the 10,001st prime. + +# Challenge 2 - Curious Fraction Tree + +***The tree below is defined by the following rules. For a fraction `a/b` the children are `a/(b+a)` & `(a+b)/b`. Given a node in the tree `n/m` we need to find the pate back up to the root node.*** + +``` + 1/1 + | + +-------------------+-------------------+ + 1/2 2/1 + | | + +---------+---------+ +---------+---------+ + | | | | + 1/3 3/2 2/3 3/1 + | | | | + +----+----+ +----+----+ +----+----+ +----+----+ + | | | | | | | | + 1/4 4/3 3/5 5/2 2/5 5/3 3/4 4/1 + | | | | | | | | + +-+-+ +-+-+ +-+-+ +-+-+ +-+-+ +-+-+ +-+-+ +-+-+ + | | | | | | | | | | | | | | | | +1/5 5/4 4/7 7/3 3/8 8/5 5/7 7/2 2/7 7/5 5/8 8/3 3/7 7/4 4/5 5/1 +``` + +## The solution + +We note if the node is `N/D` and the parent node is `n/d`: +* To get the parent of the left child we note that `n+d = D` and `n = N`, so the parent denominator is `N-D` and numerator doesn't change +* To get the parent of the right child we note that `n = N+D` and `d = D`, so the parent numerator is `N-D` and denominator doesn't change. +* For all nodes the numerator/denominator are co-prime. + +We repeat this until `n` and `d` are the same - in the tree above both will have a value of `1`. If the initial numbers of not co-prime. The function stops when `n` and `d` are both the greatest common divisor of `n` and `d`. + +The `stringify` function just converts the tree into a single string (list of fractions) so we can test the tree code. + +```perl +sub tree { + my@tr=[my($n,$d)=@_]; + push@tr,$d>$n?[$n,$d-=$n]:[$n-=$d,$d]while$n-$d; + \@tr; +} + +sub stringify { + "@{[map{join'/',@{$_}}@{$_[0]}]}"; +} + +sub tree_expanded { + my ($n,$d) = @_; + my $traverse = [ [ $n, $d ] ]; + while( $n != $d ) { + if($d>$n) { + $d -= $n; + } else { + $n -= $d; + } + push @{$traverse}, [ $n, $d ]; + } + return $traverse; +} + +sub stringify_expanded { + my traverse = $_[0]; ## Ref passed + return join ' ', + map { $_->[0].'/'.$_->[1] } + @{ $traverse }; +} +``` +**Notes** + * In the tree function we work with an array, and return it's reference (the last result is returned if no explicit `return` is given, so if you are returning from the last command in the function you do not have to include the `return` keyword.) This just makes for shorter code. + * Rather than using an `if/else` we use a ternary ` ? : ` to implement the same switch - and we update `$d` and `$n` when we create the new element to the array. This allows us to embed the code in a postfix `while`. + * Rather than using `$n==$d` we use `$n-$d` to save 1 byte but these are essentially the same in an if statement. + * In `stringify` we use a number of tricks for compactness. Rather than using explicit `$n.'/'.$d` we note that we can rewrite as a join. But where we want to join on `" "` we can use the fact that if you embed an array in a string "@a" it does an implicit join on `" "`. You can then embed any code within a string by wrapping it in `@{[` & `]}` diff --git a/challenge-147/jan-perl/README b/challenge-147/jan-perl/README new file mode 100644 index 0000000000..70e335d7d7 --- /dev/null +++ b/challenge-147/jan-perl/README @@ -0,0 +1 @@ +Solution by Jan Hoogenraad diff --git a/challenge-147/jaredor/README b/challenge-147/jaredor/README new file mode 100644 index 0000000000..398fcc9bae --- /dev/null +++ b/challenge-147/jaredor/README @@ -0,0 +1 @@ +Solution by Jared Martin diff --git a/challenge-147/jason-messer/README b/challenge-147/jason-messer/README new file mode 100644 index 0000000000..db0556d981 --- /dev/null +++ b/challenge-147/jason-messer/README @@ -0,0 +1 @@ +Raku Solutions by Jason Messer diff --git a/challenge-147/javier-luque/README b/challenge-147/javier-luque/README new file mode 100644 index 0000000000..887e7fc81a --- /dev/null +++ b/challenge-147/javier-luque/README @@ -0,0 +1 @@ +Solutions by Javier Luque. diff --git a/challenge-147/jbourlakos/README b/challenge-147/jbourlakos/README new file mode 100644 index 0000000000..5ce76645d3 --- /dev/null +++