Perl Weekly - all the articles published by Roger Bell West

https://blog.firedrake.org/

PAUSE: FIREDRAKE

2017.08.13 in #318 Building My Second First CPAN Module
The creation of Geo::OSM::Imager
2018.04.18 in #352 Finding a handy Tesco (UK supermarket) with Perl
How to find the nearest shop that is on your way, instead of the one that is currently closest to you, but in the wrong direction?
2019.07.27 in #418 Perl Weekly Challenge 18
Roger writings has also impressed me, specially the way he explains the feature in block. This makes very it easy to follow what he is doing. Great work.
2019.08.15 in #421 Perl Weekly Challenge 21
Roger's blog started with raw calculation of e in Perl5 and Perl6. He then followed up with URL normalization with ease.
2019.08.24 in #422 Perl Weekly Challenge 22
Roger shares his solution analysis, specially LZW compression. I loved it.
2019.08.28 in #423 Perl Weekly Challenge 23
Roger surprised us by solving the challenge in Postscript. When he joined the team, he used to solve in Perl5 then few weeks later he started solvung challenges in Perl6. Now he has done in Postscript.
2019.09.03 in #424 Perl Weekly Challenge 24
Roger made the Inverted Index task so simple by breaking into smaller chunk.
2019.09.11 in #425 Perl Weekly Challenge 25
Roger use of recursion, made it look so simple. You must checkout his solution.
2019.09.20 in #426 Perl Weekly Challenge 26
Roger solution for Stones and Jewels task using just map{}. For mean angles task he used pure perl.
2019.10.04 in #428 Perl Weekly Challenge 28
Roger discuss how he used Imager::Color to create Digital Clock. You must checkout his unique implementation.
2019.10.11 in #429 Perl Weekly Challenge 29
Roger introduced FFI::Raw to show how it can be used to call C function. Must Read.
2019.10.15 in #430 Perl Weekly Challenge 30
Roger solution to the Task #2 of number series is really cool.
2019.11.08 in #433 Perl Weekly Challenge 33
The best part of Roger's blog is about his Postscript solution explanation.
2019.12.20 in #439 Day 20: Word Game
2020.05.14 in #460 Perl Weekly Challenge 60: Excel columns and number generation
Roger came up with complete set of test cases for his solutions.
2020.05.20 in #461 Perl Weekly Challenge 61: maximum products and IPv4
Roger shared his tips to solve IPv4 partition using regex.
2020.05.27 in #462 Perl Weekly Challenge 62: email sorting and 3d queens
Roger also shared 3D N Queens solutions in Perl. Please do checkout.
2020.06.06 in #463 Perl Weekly Challenge 63: last words and string rotation
Roger took the pain to explain the solution to Last Word in a detailed way. Must Read.
2020.06.10 in #464 Perl Weekly Challenge 64: summing paths and breaking words
Roger is not hiding his view on Raku. Do checkout his work.
2020.07.10 in #468 Perl Weekly Challenge 68: zero matrix and list reordering
Roger shared his test driven solutions, interesting take.
2020.07.18 in #469 Perl Weekly Challenge 69: invertible numbers and very long strings
Roger takes us through fun journey of 0/1 String task. Highly Recommended.
2020.07.22 in #470 Perl Weekly Challenge 70: character swaps and Gray code
Roger Gray code sequence implementation is worth checking.
2020.07.28 in #471 Perl Weekly Challenge 71: peak elements (and Rallyman tracks)
Roger used the shuffle and splice to generate random elements, interesting approach.
2020.08.05 in #472 Perl Weekly Challenge 72: factorial zeroes and line ranges
Roger dealing with Math::GMP completely bowled me over. Cool attempt.
2020.08.23 in #474 Perl Weekly Challenge 74: more songs about lists
Interesting comparison of solutions in Perl, Raku and Python.
2020.08.27 in #475 Perl Weekly Challenge 75: coins and rectangles
Roger dealt with "Coins Sum" task using iterative approach. As a bonus we got Python solution to the "Largest Rectangle Histogram" task as well.
2020.09.03 in #476 Perl Weekly Challenge 76: prime sum and word search
Roger played with Python once again. I loved his "Prime Sum" explanation, very unique.
2020.09.09 in #477 Perl Weekly Challenge 77: Fibonacci Sum and Lonely X
Roger gave us bonus by providing solutions to Fibonacci sum task in Perl, Raku and Python.
2020.09.16 in #478 Perl Weekly Challenge 78: Leaders and Rotation
Roger started with Raku and then converting into Perl for a change this week. It is inspirational.
2020.09.23 in #479 Perl Weekly Challenge 79: cumulative bit count and water capacity
A very unique solution to count set bits. Highly Recommended.
2020.09.29 in #480 Perl Weekly Challenge 80: missing numbers and jealous neighbours
Roger presented different approaches to each task. Must Read.
2020.10.07 in #481 Perl Weekly Challenge 81: Base Frequency
Roger tried Ruby this week along with Perl and Raku.
2020.10.14 in #482 Perl Weekly Challenge 82: Interleave Factors
Roger blog can be classed as educational. I, personally, enjoyed it thoroughly.
2020.10.23 in #483 Perl Weekly Challenge 83: Length and Inversion
As always, Roger, shared comparative analysis of Perl, Raku, Python and Ruby.
2020.10.28 in #484 Perl Weekly Challenge 84: Reverse square
Roger is back with another comparative analysis of the weekly tasks. Must Read.
2020.11.05 in #485 Perl Weekly Challenge 85: Triplet Power
As always, Roger shares ways to get best performance using different techniques.
2020.11.12 in #486 Perl Weekly Challenge 86: Sudoku Difference
Big fan of Roger - yet another cool blog post showing the magic of the puzzles.
2020.11.19 in #487 Perl Weekly Challenge 87: Consecutive Rectangles
Roger spoilt us with solutions in Perl, Raku, Python, Ruby and Rust.
2020.11.28 in #488 Perl Weekly Challenge 88: Spiral Product
Roger's blog post is not limited to a Perl solution. You will find comparable solutions in other languages too.
2020.12.05 in #489 Perl Weekly Challenge 89: magic sum
Roger's blog has been an inspiration for me every time. Read his words carefully and you will understand what I mean.
2020.12.18 in #491 Perl Weekly Challenge 91: Number Jump
Roger presenting bonus solutions in Python, Ruby and Rust. Don't forget to check out Perl and Raku as well.
2020.12.25 in #492 Perl Weekly Challenge 92: Isomorphic Interval
Roger in-line comment makes it so easy to follow the code. Highly Recommended.
2020.12.30 in #493 Perl Weekly Challenge 93
The main attraction of Roger's blog posts is always the choice of multiple languages. You don't want to miss it.
2021.01.05 in #494 Perl Weekly Challenge 94: Binary Anagrams
Roger's blog post is not just limited to Perl and Raku but it also includes bonus solutions in Python, Ruby and Rust.
2021.01.14 in #495 Perl Weekly Challenge 95: Palindrome Stack
Roger shared Raku's method chaining feature, which is my favourite feature. It has changed the way I look at objects now.
2021.01.22 in #496 Perl Weekly Challenge 96: Reverse Distance
Roger's blog post is one place where we get to explore more than just Perl solutions. Must Read.
2021.01.27. in #497 Perl Weekly Challenge 97: Caesar Substrings
Roger built a hash map for Caesar Cipher task. His olution to the binary substrings task is very clever too.
2021.02.05 in #498 Perl Weekly Challenge 98: Insert N
Roger used a state variable for the readN() task. As every week, you get to enjoy Python, Ruby and Rust.
2021.02.10 in #499 Perl Weekly Challenge 99: Unique Match
As always, Roger shows his command over not just Perl and Raku but Ruby, Rust and Python too. Too much to fit in one blog post.
2021.02.18 in #500 Perl Weekly Challenge 100: Time Triangle
It is pretty evident that Roger doesn't like Perl one-liners. He came up with detailed solution as always.
2021.03.03 in #502 Perl Weekly Challenge 102: Rare Hash
Roger shared the performance of his solutions in Perl, Python and Ruby. Some interesting stats.
2021.03.10 in #503 Perl Weekly Challenge 103: Playing Zodiac
I loved the blog post title. Roger never plays with his title but this time all my attention went to the title. As always, one blog post showing implementations in different languages. Great job.
2021.03.16 in #504 Perl Weekly Challenge 104: FUSC NIM
Roger tried recursion and caching to deal with FUSC sequence in not just Perl and Raku, but also Python, Ruby and Rust.
2021.03.31 in #506 Perl Weekly Challenge 106: Maximum Decimal
Roger shared a cool algorithm to deal with the Decimal String task. Thanks for sharing.
2021.04.07 in #507 Perl Weekly Challenge 107: Self-Descriptive Methods
Roger made the Self-Descriptive numbers task so easy to follow and understand. Thanks for sharing.
2021.04.13 in #508 Perl Weekly Challenge 108: Memory Bell
I loved the hack shared by Roger. It a nice reminder to all of us, RTFM.
2021.04.20 in #509 Perl Weekly Challenge 109: Chowla Squares
Roger shared two different approaches to solve the Four Squares Puzzle task. Interesting, you must check out.
2021.04.28 in #510 Perl Weekly Challenge 110: Transpose Numbers
I noticed Roger not using \d in the regex, instead using [0-9]. I remember reading somewhere it is the preferred choice.
2021.05.05 in #511 Perl Weekly Challenge 111: Search Letters
Roger shared some very interesting ideas dealing with Ordered Letters task. Please go check out yourself.
2021.05.12 in #512 Perl Weekly Challenge 112: Canonical Stairs
Roger shared a simple but concise solution to the Canonical Path task.
2021.05.19 in #513 Perl Weekly Challenge 113: Represent-Recreate
Roger's optimisation of the Represent Integer the is the highlight of this blog post for me. Thanks for sharing.
2021.05.27 in #514 Perl Weekly Challenge 114: Going Higher
Roger's use of substr() to generate palindrome is the surprise element for me. Thanks for sharing the hack.
2021.06.10 in #516 Perl Weekly Challenge 116: Square Sequence
Roger figured out an interesting output from one of the given example. Good catch.
2021.06.16 in #517 Perl Weekly Challenge 117: Missing Possibilities
I loved the graphical representation of the Find Possible Paths task. It helped a lot to understand the solution. Thanks for all your hard work.
2021.06.23 in #518 Perl Weekly Challenge 118: Binary Knight
Roger took a very different route to solve task #1. I liked it. Roger's attempt at breaking down task #2 is much appreciated. It made the solution easy to follow. Thanks.
2021.07.02 in #519 Perl Weekly Challenge 119: Sequence Nibble
2021.07.07 in #520 Perl Weekly Challenge 120: Swap Clock
Roger came up with a one-liner using a bitwise operator that makes it look really cool. Thanks for sharing.
2021.07.14 in #521 Perl Weekly Challenge 121: Travelling Bit
Roger's implementation of The Travelling Salesman task is very impressive. Well done. Thanks.
2021.07.22 in #522 Perl Weekly Challenge 122: Basketball Stream
2021.07.28 in #523 Perl Weekly Challenge 123: Ugly Square
Roger blog always makes it obvious that he is a well-read geek. His reference points are always eye openers for me. Thanks for sharing.
2021.08.04 in #524 Perl Weekly Challenge 124: War Day
By chance, I noticed the conversation betweem Roger and Cheok-Yin. It feels great to see members discussing each other's solution. Thanks Roger for sharing your experience with us.
2021.08.11 in #525 Perl Weekly Challenge 125: Pythagorean Diameter
Roger discussed a Ruby solution to the Pythagorean Triples task for clarity. You also get the Perl solution discussed as well. Nice mix, thanks Roger.
2021.08.20 in #526 Perl Weekly Challenge 126: Count Sweeper
Roger made the Minesweeper Game so simple and that is the power of his algorithm. Thanks for sharing.
2021.08.26 in #527 Perl Weekly Challenge 127: Disjoint Conflict
Roger has been sharing code in multiple languages every week. Perl looked the simplest in all, I must admit.
2021.09.03 in #528 Perl Weekly Challenge 128: Maxima and Minima
Roger's style of inline document is very useful to follow the code. Thanks for sharing.
2021.09.10 in #529 Perl Weekly Challenge 129: Eats Roots and Lists
Roger's love for Rust is all over in this week blog. Anyone interested in Rust, should definitely take a look. Keep up the great work.
2021.09.17 in #530 Perl Weekly Challenge 130: An Odd Tree
Roger shared a Raku version of the Odd Number task. I loved the Postscript solution.
2021.09.23 in #531 Perl Weekly Challenge 131: Splitting and Splitting More
Roger shared a Postscript solution along with Ruby. It is always the main attraction.
2021.10.02 in #532 Perl Weekly Challenge 132: Hash on the Mirror
As always, Roger not only discusses Perl/Raku solutions but also Transcript. I find it hard to follow, I must admit. Thanks for sharing.
2021.10.06 in #533 Perl Weekly Challenge 133: Rooting the Smith
Roger's blog is always full of magical solutions. This week, he is talking about Rust and PostScript as well as Raku. Never short of fun moments.
2021.10.21 in #535 Perl Weekly Challenge 135: Valid Middle
Roger's take on SEDOL validation is simply the best. I liked the clarity in his thoughts. Thank you for your contributions.
2021.10.29 in #536 Perl Weekly Challenge 136: Fibonacci Friends
Roger's style of blogging is unique and always fun to read. He presents even complex logic in such a way that any non-technical person can also follow. Great work. Thanks for sharing.
2021.11.05 in #537 Perl Weekly Challenge 137: Long Cheryl
Roger made the Long Year task look so simple. It is magical. Keep up the great work.
2021.11.12 in #538 Perl Weekly Challenge 138: Split Work
I liked how Roger picked Raku to talk about the Workdays task. Great example of code reuse. As always, thank you for your support and encouragement.
2021.11.18 in #539 Perl Weekly Challenge 139: Jort Primes
Roger always discusses the comparison of solutions in different languages. Nice way to learn new things.
2021.11.24 in #540 Perl Weekly Challenge 140: Binary and Tabular
For me, the highlight of this blog post is the discussion of the Add Binary task, a very unique solution. Thank you for sharing your knowledge.
2021.12.10 in #542 Clock Angle
2021.12.15 in #543 The Weekly Challenge 143: Stealthy Calculator
Roger shared a Kotlin solution with us for the first time. There is so much to learn every week from him. Great to have you in the team.
2021.12.21 in #544 The Weekly Challenge 144: Semiprime Ulam
Roger chose his Raku solution to the Semiprime task to discuss in his blog post this week. Detailed analysis makes it easy to follow. Thanks for sharing.
2021.12.28 in #545 The Weekly Challenge 145: Tree Product
Roger discusses his Lua solution to the Palindromic Tree task. His Rust solution to the Dot Product task is also cool. Thank you for sharing the knowledge.
2022.01.04 in #546 The Weekly Challenge 146: Curious Prime
Reference point in the blog to the task is the main attraction for me. Roger has been providing solutions in many other languages too.
2022.01.09 in #547 Polyglot Programming
Roger shared an inspiring blog post where he shared his idea of using guest languages. Highly Recommended.
2022.01.20 in #548 The Weekly Challenge 148: Eban, Cardano
A unique solution to Eban numbers task. I loved it. Keep it up, great work.
2022.01.27 in #549 The Weekly Challenge 149: Fibonacci Squares
Roger being the guy behind both tasks this week, we have got bonus material in his blog post. You don't want to miss it.
2022.02.03 in #550 The Weekly Challenge 150: Square-Free Words
Are you a Ruby fan? Roger shared his Ruby solution in this week's blog post. Easy to follow format as always. Keep it up; great work.
2022.02.10 in #551 The Weekly Challenge 151: Robbing Depth
Roger's choice of a Rust solution to discuss in his blog post is very interesting. I always find a mix of languages in his blog. Keep it up great work.
2022.02.17 in #552 The Weekly Challenge 152: Triangles, Rectangles, and Objects
Roger shared the power of JavaScript and I must admit it looks elegant. Keep it up great work.
2022.02.24 in #553 The Weekly Challenge 153: Factoriality
Roger choice of language to discuss in the blog this week is Postscript. Thanks for promoting so many languages. Keep it up great work. Task one is quite easy. Factorions are quite rare.
2022.03.03 in #554 The Weekly Challenge 154: Missing Padovan
The best hack to find the missing permutations. Prepare the possible list and delete items from the input list to find the missing permutations. No gimmicks. Keep it up, great work!
2022.03.10 in #555 Pisano's Fortune
For me, the highlight of Roger's blog is that we get the glimpse of solutions in a guest language. Thank you for all the support and encouragements.
2022.03.17 in #556 Weirdly Pernicious or Perniciously Weird?
The use of Hamming weight is something I wasn't aware of earlier. Discussion of multiple languages in one blog makes it even more fun to read. Thanks for everything.
2022.03.24 in #557 The Weekly Challenge 157: Pythagoras in Brazil
I liked the hack to get a one decimal place result. The solution to the Brazilian Number task is really cool. Great work!
2022.03.31 in #558 Prime Cuban Additives
The modular solutions in Raku are very compact and easy to follow. Keep it up great work.
2022.04.07 in #559 Farey and Moebius
This week, we got the glimpse of JavaScript. What a treat, thank you for everything.
2022.04.14 in #560 Balancing Four is Magic
I liked the very smart approach to solve the "Equilibrium Index" task the most. Keep it up - great works!
2022.04.21 in #561 Words and More Words
A very nice hacky solution this week, I loved it. Thank you for your support and contribution.
2022.04.28 in #562 Playing Fair with ISBNs
Roger's solution to the task Wheatstone-Playfair is multiple languages is the highlight for me. Thanks for sharing the knowledge with us.
2022.05.05 in #563 Sums and Sums
Roger, you are very smart to come up with mathematical formula for the task #2. You must check it out.
2022.05.12 in #564 Happy Palindromes
Rust is pick of the language for blog this week. I must admit, it is very impressive. Thanks for your contributions as always.
2022.05.19 in #565 Scaling the Fits
Well documented solution in Raku along with the precise breakdown. Nice and easy to ready. Thanks for your contributions.
2022.05.26 in #566 Hexing the Directories
Roger decided to talk about his Rust solution this week. There is a surprise element every week. Keep it up great work.
2022.06.02 in #567 Circling the Gamma
Thanks for giving us demo of Python. I just love how Roger picks a language to talk about every week. Amazing.
2022.06.09 in #568 At Home with the Perrins
Ruby is the favourite language this week. Although it is new to me but blog makes it so easy to follow. Thank you for your contributions.
2022.06.15 in #569 The Brilliance of Achilles
It was the turn of Raku this week in Roger's blog. Nice story around the solution. Highly Recommended.
2022.06.23 in #570 Kronecker's Primorial
Great show of code reuse. Isn't fun that you don't re-invent the wheel. Well done.
2022.06.30 in #571 First-Class Abundance
Roger back to classic PostScript and other regular guest contributions. Thank you for your contributions.
2022.07.07 in #572 Partition of Five
Raku and Kotlin found space in this week blog. Plenty to learn if you fancy any of this. Thanks for sharing.
2022.07.14 in #573 The Aesthetics of Sylvester
I loved how the solution is made to respect the number base. Intelligent work, keep it up.
2022.07.20 in #574 The Rank Smell of Disarium
Clever hack to solve the Permutation Ranking task. Plenty to learn every week. Thanks for your contributions.
2022.07.26 in #575 Perfect Sunday
Using good old DateTime, Roger shared his trick. Simple and easy. Thank you.
2022.08.04 in #576 Reversible Permutations
Roger sharing the power of Kotlin, very impressive. Thanks for sharing.
2022.08.11 in #577 Damm Cyclops
This week Roger kindly discussed Perl and few other solutions in the blog post. Thanks for sharing.
2022.08.18 in #578 Imaginary Date
Plenty in offer for all in the blog post. You will never get bored, I bet. Keep it up great work.
2022.08.25 in #579 Spark and Spell
JavaScript sparkline solution is the highlight of the week for me. Highly recommended.
2022.08.30 in #580 Unique Trim
I noticed short commentary at the end of the blog is worth checking, specially the regex one-liner. Thanks for sharing.
2022.09.08 in #581 Python is the choosen languages this week for Hot Day task. Finally we ended up with clean compact solution. Thanks for your contributions.
2022.09.14 in #582 Max is Common
Roger always shares fixed set of solutions. Not only that but we also get to know the fun facts about each language. Keep it up great work.
2022.09.20 in #583 A Unique Date
Nice use of Storable. It is always fun to see the real use case. Thanks for sharing.
2022.09.29 in #584 Split Sequence
Raku and Rust are the choosen one. I loved the Rust one, though. Thanks for sharing.
2022.10.06 in #585 Big MAC and Mask
I am always fascinated by PostScript solution. Thank you Roger for sharing.
2022.10.14 in #586 Makeover List
Using CPAN module for Unicode is a smart move. The end result is clean and readable. Thanks for sharing.
2022.10.18 in #587 Magical Days Together
As always the case, we got yet another collection of solutions in different languages. Thanks for keeping us engaged.
2022.10.25 in #588 Divisible Zero
Cool use of Euclid's algorithm for the task "Total Zero". Thanks for sharing knowledge with us.
2022.11.06 in #589 Degree of Character
I enjoy the varieties of solutions every week by Roger. For blog, he picked up PostScript, interesting choice. Thanks for sharing.
2022.11.12 in #590 Decoding Capital
Pure regex solution in Perl is dicussed in the blog. However there are plenty other implementations for you to keep busy. Thanks for your contributions.
2022.11.20 in #591 Large but Cute
Roger also shared different approaches to deal with Cute List task, Not to be missed, highly recommended.
2022.11.27 in #592 Equal Flips For All
Javascript bit operation in play this week. Great work, keep it up.
2022.12.04 in #593 Odd Binary
Are you a Kotlin fan? Roger decided to discuss his Kotlin solution in the blog this week. Highly recommended.
2022.12.11 in #594 Digital Equaliser
Advise and suggestions in the blog post is worth checking. Thanks for sharing knowledge with us.
2022.12.18 in #595 Frequently Special
You will fall in love with the PostScript solution by Roger. Keep it up great work.
2022.12.25 in #596 Pattern and Range
Roger's collection always has the surprising element, you don't want to miss. Highly recommended.
2023.01.08 in #598 Count Max
Kotlin is the choosen one this week from the collection of gems. Keep it up great work.
2023.01.15 in #599 Good N-lets
Use of CPAN module makes the solution easier to follow. Great work!
2023.01.22 in #600 Seven Slices
Use of bitmap table is really nice. Thanks for sharing your knowledge with us.
2023.01.29 in #601 Penny Numbers
Ruby in action this week, I am sure you will fall in love. Thanks for your contributions as always.
2023.02.05 in #602 Consecutive Valley
Roger choosen Raku and Rust this week to talk about in the blog post. Highly recommended if you Raku/Rust fan.
2023.02.12 in #603 Directing the Quadruplets
Pure CPAN solution this time, smart move. Well done.
2023.02.19 in #604 Reshape the Monotony
The solution to the task "Reshape Matrix" turned out to be easy peasy for Roger. Above all, it is easy to follow too, well done.
2023.02.26 in #605 Third Exclusive
Roger never misses the opportunity to use the power tool of the language. Well done and keep it up.
2023.03.05 in #606 Array Time!
Ruby is the pick of the language for the blogging this week. All Ruby fans go for it.
2023.03.12 in #607 Indexed Keyboards
Some more regex fun using Perl and other languages too. Thanks for sharing the knowledge.
2023.03.19 in #608 Missing Index? Just Duplicate!
Ruby is choice of language for this week blog. Thanks for your contributions.
2023.03.26 in #609 Special Merge
Python is the choice of language this week for special bit characters. Perl fans shouldn't be disappointed as we have Perl in the discussion too.

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