The Weekly Challenge Advent Calendar 2022
Tags: perl, rakulang, advent
Published: 2022-12-18 08:56:38

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## | &nbsp; [**2019**](https://theweeklychallenge.org/blog/advent-calendar-2019) &nbsp; | &nbsp; [**2020**](https://theweeklychallenge.org/blog/advent-calendar-2020) &nbsp; | &nbsp; [**2021**](https://theweeklychallenge.org/blog/advent-calendar-2021) &nbsp; | &nbsp; **2022** &nbsp; |

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Welcome to our `4th Advent Calendar`. I promise to present interesting topic every day contributed by esteemed members of **Team PWC**.

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| :---: | :---: | :---: | :---: | :---: | :---: | :---: |
| `MON`<br> |  `TUE`<br> | `WED`<br> |  `THU`<br>| `FRI`<br>|  `SAT`<br> |  `SUN`<br> |
| <br><br><br>             | <br><br><br> |   <br><br><br> | [![Day 1](https://theweeklychallenge.org/images/blog/2022-12-01-thumbnail.jpg "Are Abecedarians from Abecedaria? by Adam Russell")](https://theweeklychallenge.org/blog/advent-calendar-2022-12-01)<br>[**`1`**](https://theweeklychallenge.org/blog/advent-calendar-2022-12-01) | [![Day 2](https://theweeklychallenge.org/images/blog/2022-12-02-thumbnail.jpg "Binary / Odd String by James Smith")](https://theweeklychallenge.org/blog/advent-calendar-2022-12-02)<br>[**`2`**](https://theweeklychallenge.org/blog/advent-calendar-2022-12-02) | [![Day 3](https://theweeklychallenge.org/images/blog/2022-12-03-thumbnail.jpg "Counting Cute by Colin Crain")](https://theweeklychallenge.org/blog/advent-calendar-2022-12-03)<br>[**`3`**](https://theweeklychallenge.org/blog/advent-calendar-2022-12-03) | [![Day 4](https://theweeklychallenge.org/images/blog/2022-12-04-thumbnail.jpg "No way around four by Alexander Pankoff")](https://theweeklychallenge.org/blog/advent-calendar-2022-12-04)<br>[**`4`**](https://theweeklychallenge.org/blog/advent-calendar-2022-12-04) |
| [![Day 5](https://theweeklychallenge.org/images/blog/2022-12-05-thumbnail.jpg "Farey, Moebius by Arne Sommer")](https://theweeklychallenge.org/blog/advent-calendar-2022-12-05)<br>[**`5`**](https://theweeklychallenge.org/blog/advent-calendar-2022-12-05) | [![Day 6](https://theweeklychallenge.org/images/blog/2022-12-06-thumbnail.jpg "In Our Primes by Dave Jacoby")](https://theweeklychallenge.org/blog/advent-calendar-2022-12-06)<br>[**`6`**](https://theweeklychallenge.org/blog/advent-calendar-2022-12-06) | [![Day 7](https://theweeklychallenge.org/images/blog/2022-12-07-thumbnail.jpg "Three means and big bases by Simon Green")](https://theweeklychallenge.org/blog/advent-calendar-2022-12-07)<br>[**`7`**](https://theweeklychallenge.org/blog/advent-calendar-2022-12-07) |  [![Day 8](https://theweeklychallenge.org/images/blog/2022-12-08-thumbnail.jpg "Pernicious / Weird Number by Cheok-Yin Fung")](https://theweeklychallenge.org/blog/advent-calendar-2022-12-08)<br>[**`8`**](https://theweeklychallenge.org/blog/advent-calendar-2022-12-08) | [![Day 9](https://theweeklychallenge.org/images/blog/2022-12-09-thumbnail.jpg "Fortune and Pisani by Luca Ferrari")](https://theweeklychallenge.org/blog/advent-calendar-2022-12-09)<br>[**`9`**](https://theweeklychallenge.org/blog/advent-calendar-2022-12-09) | [![Day 10](https://theweeklychallenge.org/images/blog/2022-12-10-thumbnail.jpg "Padawan Missing by Bruce Gray")](https://theweeklychallenge.org/blog/advent-calendar-2022-12-10)<br>[**`10`**](https://theweeklychallenge.org/blog/advent-calendar-2022-12-10) | [![Day 11](https://theweeklychallenge.org/images/blog/2022-12-11-thumbnail.jpg "Factorions by Flavio Poletti")](https://theweeklychallenge.org/blog/advent-calendar-2022-12-11)<br>[**`11`**](https://theweeklychallenge.org/blog/advent-calendar-2022-12-11) |
| [![Day 12](https://theweeklychallenge.org/images/blog/2022-12-12-thumbnail.jpg "Triangle Sum Path / Rectangle Area by W. Luis Mochan")](https://theweeklychallenge.org/blog/advent-calendar-2022-12-12)<br>[**`12`**](https://theweeklychallenge.org/blog/advent-calendar-2022-12-12) | [![Day 13](https://theweeklychallenge.org/images/blog/2022-12-13-thumbnail.jpg "Capital test and ambiguous encoding by Peter Campbell Smith")](https://theweeklychallenge.org/blog/advent-calendar-2022-12-13)<br>[**`13`**](https://theweeklychallenge.org/blog/advent-calendar-2022-12-13) | [![Day 14](https://theweeklychallenge.org/images/blog/2022-12-14-thumbnail.jpg "Days Together / Mask Code by Andinus")](https://theweeklychallenge.org/blog/advent-calendar-2022-12-14)<br>[**`14`**](https://theweeklychallenge.org/blog/advent-calendar-2022-12-14) | [![Day 15](https://theweeklychallenge.org/images/blog/2022-12-15-thumbnail.jpg "Array Degree by E. Choroba")](https://theweeklychallenge.org/blog/advent-calendar-2022-12-15)<br>[**`15`**](https://theweeklychallenge.org/blog/advent-calendar-2022-12-15) | [![Day 16](https://theweeklychallenge.org/images/blog/2022-12-16-thumbnail.jpg "Divisible Pairs / Total Zero by Jaldhar H. Vyas")](https://theweeklychallenge.org/blog/advent-calendar-2022-12-16)<br>[**`16`**](https://theweeklychallenge.org/blog/advent-calendar-2022-12-16) | [![Day 17](https://theweeklychallenge.org/images/blog/2022-12-17-thumbnail.jpg "Digital Clock and Frequency Equalizer by Laurent Rosenfeld")](https://theweeklychallenge.org/blog/advent-calendar-2022-12-17)<br>[**`17`**](https://theweeklychallenge.org/blog/advent-calendar-2022-12-17) | [![Day 18](https://theweeklychallenge.org/images/blog/2022-12-18-thumbnail.jpg "Odd Abundant Numbers by Ryan Thompson")](https://theweeklychallenge.org/blog/advent-calendar-2022-12-18)<br>[**`18`**](https://theweeklychallenge.org/blog/advent-calendar-2022-12-18) |
| [![Day 19](https://theweeklychallenge.org/images/blog/2022-12-19-thumbnail.jpg "Zip List / Unicode makeover by Stephen G. Lynn")](https://theweeklychallenge.org/blog/advent-calendar-2022-12-19)<br>[**`19`**](https://theweeklychallenge.org/blog/advent-calendar-2022-12-19) | [![Day 20](https://theweeklychallenge.org/images/blog/2022-12-20-thumbnail.jpg "Equal Flips For All by Roger Bell_West")](https://theweeklychallenge.org/blog/advent-calendar-2022-12-20)<br>[**`20`**](https://theweeklychallenge.org/blog/advent-calendar-2022-12-20) | [![Day 21](https://theweeklychallenge.org/images/blog/2022-12-21-thumbnail.jpg "Intersection on a Sunday Afternoon by Jared Martin")](https://theweeklychallenge.org/blog/advent-calendar-2022-12-21)<br>[**`21`**](https://theweeklychallenge.org/blog/advent-calendar-2022-12-21) | [![Day 22](https://theweeklychallenge.org/images/blog/2022-12-22-thumbnail.jpg "Perl flexibility for the win by Lance Wicks")](https://theweeklychallenge.org/blog/advent-calendar-2022-12-22)<br>[**`22`**](https://theweeklychallenge.org/blog/advent-calendar-2022-12-22) | [![Day 23](https://theweeklychallenge.org/images/blog/2022-12-23-thumbnail.jpg "Lambdas & Printf by E. Alvarez")](https://theweeklychallenge.org/blog/advent-calendar-2022-12-23)<br>[**`23`**](https://theweeklychallenge.org/blog/advent-calendar-2022-12-23) | [![Day 24](https://theweeklychallenge.org/images/blog/2022-12-24-thumbnail.jpg "Merry Christmas by Mohammad S Anwar")](https://theweeklychallenge.org/blog/advent-calendar-2022-12-24)<br>[**`24`**](https://theweeklychallenge.org/blog/advent-calendar-2022-12-24) | ![ ](https://theweeklychallenge.org/images/blog/blank-thumbnail.jpg)<br>**`25`**<br> |
|  <br><br>**`26`**<br> |  <br><br>**`27`**<br> |  <br><br>**`28`**<br> |  <br><br>**`29`**<br> |  <br><br>**`30`**<br> |  <br><br>**`31`**<br> | <br><br><br> |
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