Spoiler Alert: This weekly challenge deadline is due in a couple of days, on Independence Day (July 4, 2021). This blog post offers some solutions to this challenge, please don’t read on if you intend to complete the challenge on your own.
Task 1: Swap Nibbles
You are given a positive integer $N.
Write a script to swap the two nibbles of the binary representation of the given number and print the decimal number of the new binary representation.
A nibble is a four-bit aggregation, or half an octet.
To keep the task simple, we only allow integer less than or equal to 255.
Inspired by the blog by Gabor Szabo, I am writing this blog to thank all the supporters on Patreon. I would also like to thank Gabor Szabo for the support and guidance. I wouldn't have come this far without your support.
I still can't believe there are people out there willing to support me. Although I knew about Patreon but never had the courage to go public.
I remember my first contribution Test::Excel to CPAN was uploaded on 13th Aug 2010. The second came within 2 months, on 25th Oct 2010, Map::Tube. These 2 are still very close to me out of 85 contributions to CPAN till date. As of today, there 39 maps created using the library by fellow contributors. You can find them on Meta CPAN under the namespace Map::Tube::*.
Yesterday I posted about this in the Perl Weekly newsletter and both Mohammad and myself got 10 new supporters. This is awesome.
There are not many ways to express the fact that you really value the work of someone.
You can send them postcards or thank-you notes, but when was the last time you remembered to do that?
Right, I also keep forgetting to thank the people who create all the free and awesome stuff I use.
Giving money as a way to express your thanks is frowned upon by many people, but trust me, the people who open an account on Patreon to make it easy to donate them money will appreciate it.
In any case it is way better than not saying anything.
Patreon, GitHub sponsor and Perl
So pick one or all three of us and depending on your financial possibilities sign up to give a monthly donation.
Update
New names were added and support via GitHub is also mentioned.
Before reading this, you should watch this video where Bryan Cantrill explains a value-conflict between Joyent and Node.js, I believe we have a similar problem.
In it he defines a list of project values:
All these values are important - but they are in tension. In the end one has to choose between them.
Perl's has traditionally prioritized certain values over these others, and in my experience these are:
Spoiler Alert: This weekly challenge deadline is due in a couple of days (June 27, 2021). This blog post offers some solutions to this challenge, please don’t read on if you intend to complete the challenge on your own.
Task 1: Binary Palindrome
You are given a positive integer $N.
Write a script to find out if the binary representation of the given integer is Palindrome. Print 1 if it is otherwise 0.
Example:
Input: $N = 5
Output: 1 as binary representation of 5 is 101 which is Palindrome.
Input: $N = 4
Output: 0 as binary representation of 4 is 100 which is NOT Palindrome.
I've been posting some Perl related polls in Perl Programmers over the last few weeks. Despite the obvious weaknesses in the sampling method, they've provided some good insights and great talking points.
Here's some results as of this afternoon. People can still respond to these polls.
Regarding area's where Perl could help out:
This surprised me, I didn't expect Performance Monitoring to come out on top.
Regarding what Perl is being run on:
This didn't surprise me at all. The weakness in this poll is that we didn't find out if people are using their own App Perl or the System Perl. But we know that CentOS+RHEL & Debian+Ubuntu are what the majority are running, with Windows and MacOS being important too.
Regarding the question of Perl's logo:
Folks seem to be happy with the Raptor and feel a bit of a facelift is all that's needed. My favorite suggestion (in the comments) was for a new Perl7 logo was a bike shed.
I will use more polls to dive deeper in the above in the near future. Please come Join Us
DBD::SQLite 1.65_03 (with SQLite 3.32.3) is a release candidate for the next stable DBD::SQLite. There are no big changes, maybe except for the ncrease of the default upper bound on the number of parameters from 999 to 32766 (since SQLite 3.32).
I'll wait for about a month as always, and release 1.66 at the end of August if there's no blocker nor request to wait for more. Thank you for your patience.
Spoiler Alert: This weekly challenge deadline is due in a couple of days (June 20, 2021). This blog post offers some solutions to this challenge, please don’t read on if you intend to complete the challenge on your own.
Task 1: Missing Row
You are given text file with rows numbered 1-15 in random order but there is a catch one row in missing in the file.
In the Perl Programmers Facebook group we have kicked off a Perl Mentoring program. Already more than a dozen experienced Perl people have offered their services to anyone looking to learn more about Perl. It's very convenient that mechanics of volunteering and looking for a mentor are handled by Facebook's mentoring functions. Here's a few thoughts on how to build on that.
For Mentees:
Before reaching out to mentors first pick a specific area of Perl you would like help with. Think up a few ideas for projects that you can complete in 4-6 weeks. With those in mind, review the available mentors looking for skills & experiences that might match your project ideas.
A good project might be: adding a test suite to your module, writing a nagios plugin, a perl weekly challenge, something from pull request club, a bug/feature for your CPAN module, or learning how to create modules from scratch and using Moo.
Hello from the Swiss Alps, where we have been working from home and avoiding all but essential trips out like so many others over the last few months.
The current situation has led to the cancellation of several community events, including this year's main Raku and Perl conferences in North American and Europe. We have been following the situation closely in Switzerland, and have also decided not to go ahead with our event this year.
We will be following the news, recommendations, and restrictions from The Federal Council and may have a smaller meetup sometime in late Summer/early Autumn. This will be an informal event with no expectation of presentations/workshops/etc. Details will be announced later, and probably at relatively short notice.
Hoping you are safe and well, and that we will meet again in Switzerland next year.
The SanDiego.pm Quarterly Meeting is tonight, 7 PM PDT.
Because of the pesky disease that's been spreading, we'll be gathering online. The agenda for tonight is: Normal conversation and seeing how everyone is doing; if there are any questions that need to be answered, we'll do that; followed by jumping into our presentations. We have at least three, though if anybody would like to step up and add another to the mix, please let me know.
Meeting ID: 896 3919 9931
Link to the meeting: https://us02web.zoom.us/j/89639199931
Spoiler Alert: This weekly challenge deadline is due in a couple of days (June 13, 2021). This blog post offers some solutions to this challenge, please don’t read on if you intend to complete the challenge on your own.
Task 1: Number Sequence
You are given a number $N >= 10.*
Write a script to split the given number such that the difference between two consecutive numbers is always 1 and it shouldn’t have leading 0.*
Print the given number if it impossible to split the number.
Detail: pm.org is great for resources, but there's no obvious way to promote your meeting. Not that there needed to be when the meetings were local events, but now, thanks to Covid-19, these meetings are taking place virtually. Why limit yourself to your local members? I am convinced that there are plenty of pockets of mongers that, if united and connected, would make the world realize that Perl Is Not Dead.
If you are a Perl Monger organizer, consider putting your meeting on the wiki page. Let's see just how many active orgs we have!
Let’s have a thought experiment. Assume there is an Open Source-licensed Perl module published on CPAN that you care about, and that hasn’t had any updates in a very long time - what are your options?
In this blog post, I’ll take a dive into this problem, and use the Geo::Postcodes::NO module as an example. As of this writing, the module version is 0.31, and it’s most recent release was in September 2006.
Initial assumptions
Before we begin, let’s lay bare the most important assumptions I’m having. Your case may differ, but I think the following ones are pretty safe.
Spoiler Alert: This weekly challenge deadline is due in a couple of days (June 6, 2021). This blog post offers some solutions to this challenge, please don’t read on if you intend to complete the challenge on your own.
Task 1: String Chain
You are given an array of strings.
Write a script to find out if the given strings can be chained to form a circle. Print 1 if found otherwise 0.
A string $S can be put before another string $T in circle if the last character of $S is same as first character of $T.
Examples:
Input: @S = ("abc", "dea", "cd")
Output: 1 as we can form circle e.g. "abc", "cd", "dea".
Input: @S = ("ade", "cbd", "fgh")
Output: 0 as we can't form circle.
