Eric Wastl
@was.tl
Created http://adventofcode.com, http://compute-cost.com, http://anoik.is, http://was.tl/projects/; Principal Architect at https://acvauctions.com
#AdventOfCode 2025 sponsorship is now open! If your organization might be interested in sponsoring, please have them email sponsorship at [the Advent of Code domain name]. adventofcode.com/2025/sponsors
November 4, 2025 at 3:35 AM
#AdventOfCode 2025 sponsorship is now open! If your organization might be interested in sponsoring, please have them email sponsorship at [the Advent of Code domain name]. adventofcode.com/2025/sponsors
Hello, US timezone friends! A very merry Confuse Everyone Who Prints Datetimes To Their Logs Without Timezones night to all who celebrate!
November 1, 2025 at 10:55 PM
Hello, US timezone friends! A very merry Confuse Everyone Who Prints Datetimes To Their Logs Without Timezones night to all who celebrate!
Hello, friends! After 10(!) years of #AdventOfCode, I've made some changes to preserve my sanity: there will be 12 days of puzzles each December (still starting Dec 1) and there is no longer a global leaderboard. Read more:
adventofcode.com/2025/about#f...
adventofcode.com/2025/about#f...
adventofcode.com/2025/about#f...
adventofcode.com/2025/about#f...
October 22, 2025 at 2:32 AM
Hello, friends! After 10(!) years of #AdventOfCode, I've made some changes to preserve my sanity: there will be 12 days of puzzles each December (still starting Dec 1) and there is no longer a global leaderboard. Read more:
adventofcode.com/2025/about#f...
adventofcode.com/2025/about#f...
adventofcode.com/2025/about#f...
adventofcode.com/2025/about#f...
Reposted by Eric Wastl
Advent of Code: 500 Stars
My journey to getting all 500 Advent of Code stars
elly.town
September 1, 2025 at 8:59 PM
Lots of new SKINs are up on the anoik.is/skins scavenger hunt! #tweetfleet
February 16, 2025 at 9:20 AM
Lots of new SKINs are up on the anoik.is/skins scavenger hunt! #tweetfleet
Reposted by Eric Wastl
When your girlfriend gets you a 10th Anniversary Advent of Code t-shirt and you know she's the one who cracked the algorithm to your heart❤️
Thanks Asya! Now I can debug in style🎄💻
#AdventOfCode @was.tl
Thanks Asya! Now I can debug in style🎄💻
#AdventOfCode @was.tl
February 4, 2025 at 7:54 PM
When your girlfriend gets you a 10th Anniversary Advent of Code t-shirt and you know she's the one who cracked the algorithm to your heart❤️
Thanks Asya! Now I can debug in style🎄💻
#AdventOfCode @was.tl
Thanks Asya! Now I can debug in style🎄💻
#AdventOfCode @was.tl
It's been over 24 hours since #AdventOfCode 2024 ended!
This AoC season:
- 273,313 users collected at least one star
- 3,654,949 stars were collected
Since 2015:
- 779 users have all 500 stars
- 1,077,226 users collected at least one star
- 23,170,305 were collected
This AoC season:
- 273,313 users collected at least one star
- 3,654,949 stars were collected
Since 2015:
- 779 users have all 500 stars
- 1,077,226 users collected at least one star
- 23,170,305 were collected
December 26, 2024 at 10:21 PM
It's been over 24 hours since #AdventOfCode 2024 ended!
This AoC season:
- 273,313 users collected at least one star
- 3,654,949 stars were collected
Since 2015:
- 779 users have all 500 stars
- 1,077,226 users collected at least one star
- 23,170,305 were collected
This AoC season:
- 273,313 users collected at least one star
- 3,654,949 stars were collected
Since 2015:
- 779 users have all 500 stars
- 1,077,226 users collected at least one star
- 23,170,305 were collected
Reposted by Eric Wastl
Reposted by Eric Wastl
Day 25 Merry Christmas!
#AdventofCode
#AdventofCode
December 25, 2024 at 6:07 PM
Day 25 Merry Christmas!
#AdventofCode
#AdventofCode
Reposted by Eric Wastl
If you don't want the #AdventOfCode 2024 calendar spoiled you might want to stay away from the shop; there may or may not be bonus merch cottonbureau.com/people/adven...
Advent of Code
| Cotton Bureau
Advent of Code is an Advent calendar of small programming puzzles for a variety of skill sets and skill levels that can be solved in any programming language you like.
cottonbureau.com
December 25, 2024 at 5:44 AM
If you don't want the #AdventOfCode 2024 calendar spoiled you might want to stay away from the shop; there may or may not be bonus merch cottonbureau.com/people/adven...
Reposted by Eric Wastl
The 2024 Unofficial #AdventOfCode Survey results have been published! 🎄⭐️⭐️🎉😊
Available at: jeroenheijmans.github.io/advent-of-co...
Some highlights: C++ taking 3rd place, JavaScript dropping behind Java, Neovim further chipping away at vim, and a ton of wholesomeness in the "Other..." answers! <3
Available at: jeroenheijmans.github.io/advent-of-co...
Some highlights: C++ taking 3rd place, JavaScript dropping behind Java, Neovim further chipping away at vim, and a ton of wholesomeness in the "Other..." answers! <3
AoC (Unofficial) Survey Results
Results dashboard with the yearly (unofficial) Advent of Code participant survey
jeroenheijmans.github.io
December 23, 2024 at 10:04 PM
The 2024 Unofficial #AdventOfCode Survey results have been published! 🎄⭐️⭐️🎉😊
Available at: jeroenheijmans.github.io/advent-of-co...
Some highlights: C++ taking 3rd place, JavaScript dropping behind Java, Neovim further chipping away at vim, and a ton of wholesomeness in the "Other..." answers! <3
Available at: jeroenheijmans.github.io/advent-of-co...
Some highlights: C++ taking 3rd place, JavaScript dropping behind Java, Neovim further chipping away at vim, and a ton of wholesomeness in the "Other..." answers! <3
Reposted by Eric Wastl
Day 22 One Banana,Two Banana,Three Banana, Four #AdventofCode
December 22, 2024 at 8:04 PM
Day 22 One Banana,Two Banana,Three Banana, Four #AdventofCode
Reposted by Eric Wastl
#AdventOfCode 2024 is almost done! But don't worry - the puzzles aren't going anywhere. In fact, there are hundreds of puzzles from past AoC events that are still available! adventofcode.com/events
Events - Advent of Code 2024
adventofcode.com
December 21, 2024 at 7:49 AM
#AdventOfCode 2024 is almost done! But don't worry - the puzzles aren't going anywhere. In fact, there are hundreds of puzzles from past AoC events that are still available! adventofcode.com/events
Reposted by Eric Wastl
Day 20 Walls? Where we’re going we don’t need walls.
#AdventofCode
#AdventofCode
December 20, 2024 at 6:24 PM
Day 20 Walls? Where we’re going we don’t need walls.
#AdventofCode
#AdventofCode
Reposted by Eric Wastl
Reposted by Eric Wastl
Reposted by Eric Wastl
Day 17 Can't Help Falling
#AdventofCode
#AdventofCode
December 17, 2024 at 10:29 PM
Day 17 Can't Help Falling
#AdventofCode
#AdventofCode
Reposted by Eric Wastl
Reposted by Eric Wastl
Day 15 Robots gone wild
#AdventofCode
#AdventofCode
December 15, 2024 at 10:58 PM
Day 15 Robots gone wild
#AdventofCode
#AdventofCode
Reposted by Eric Wastl
We were blessed by @was.tl for the 10th (!!) year in a row with another awesome #AdventOfCode edition 😊 - and it's the 7th year I run the unofficial/community AoC Survey!
Here's a reminder to fill it out before it closes (~Dec 22nd) 😉
Survey at: forms.gle/iX1mkrt17c6Z...
Here's a reminder to fill it out before it closes (~Dec 22nd) 😉
Survey at: forms.gle/iX1mkrt17c6Z...
Unofficial Advent of Code 2024 Survey
This is a quick (unofficial / not affiliated with) Advent of Code 2024 anonymous (if you don't disclose your identity in "Other..." answers) participant survey. Note that your data will be shared as p...
forms.gle
December 15, 2024 at 7:59 PM
We were blessed by @was.tl for the 10th (!!) year in a row with another awesome #AdventOfCode edition 😊 - and it's the 7th year I run the unofficial/community AoC Survey!
Here's a reminder to fill it out before it closes (~Dec 22nd) 😉
Survey at: forms.gle/iX1mkrt17c6Z...
Here's a reminder to fill it out before it closes (~Dec 22nd) 😉
Survey at: forms.gle/iX1mkrt17c6Z...
Reposted by Eric Wastl
Day 14 Secure Restrooms #AdventofCode
December 14, 2024 at 6:44 PM
Day 14 Secure Restrooms #AdventofCode
Reposted by Eric Wastl
Day 13 The Claw, it moves
#AdventofCode
#AdventofCode
December 13, 2024 at 9:56 PM
Day 13 The Claw, it moves
#AdventofCode
#AdventofCode
Reposted by Eric Wastl
Day 12 Operation De-Fence
#AdventofCode
#AdventofCode
December 12, 2024 at 8:12 PM
Day 12 Operation De-Fence
#AdventofCode
#AdventofCode