C & C++

PCE - "Philosophic Conversation in English" is a discussion event in English language which focuses on psychology, philosophy, self-consciousness and self-realization. The conversation is based on inclusive discussion rules. We will meet at at a restaurant where we will have a private room exclusively reserved for our event. At the beginning we will choose the two topics to discuss. Everybody can suggest a topic. Afterwards we will vote what topics to discuss. The person who suggests a winning topic will start the discussion by explaining his/her idea. Afterwards everybody gets his/her chance to make a statement. But you can also decide to remain silent and only listen, if you prefer that. We have a time limit for statements, so that everybody has enough time to speak. It is not allowed to interrupt somebody who is speaking. After a statement everybody can ask a question and the speaker will answer. After the first part there will be a 15 minutes break before we start the second part. Everybody is welcome to our event: We are interested in your thoughts and opinions! It is no problem if you arrive late and you can also leave whenever you want. Please don't bring pets to this event because the room is usually very crowded. Please make sure to register for the event to secure your seat! Please check out last event's topics via this link: [http://pce-topic.project-website.org](http://pce-topic.project-website.org/)

Get ready for a Pub Quiz Night at Munchy The Urban Kitchen, where curiosity meets good vibes. From world culture and history to pop culture, sports, music, cinema, and unexpected facts — this quiz is all about testing what you really know. Bring your friends, form a team, grab a drink, and enjoy a relaxed yet competitive evening. No phones, no Google — just brains, laughs, and great pub energy. Whether you’re a quiz lover or just in for a fun night out, everyone’s welcome. Expect a friendly atmosphere, mixed questions for all levels, and a night that’s more about enjoying the moment than just winning. Think fast, trust your instincts, and let’s see who takes the crown. Good questions. Cold drinks. Proper pub quiz vibes. Enjoy your nice Monday evening! [Follow us on Instagram](https://www.instagram.com/makingfriendsinvienna)❤️ [Follow us on Facebook](https://www.facebook.com/makingfriendsinvienna) Do you have questions? Write us on Instagram

Join us for Padel on this public holiday **How we play** Beginners, Intermediate and Advanced Players are welcome Number of courts depends on the number of players * 4-5 players: one court * 8-10 players: two courts * 12-14 players: three courts Teams are mixed all the time. So you will play with/against different players during the event * Teams are put together based on their skill level * We focus on having balanced teams **Equipment** * I provide balls (usually Bullpadel Next) * If you need a racket, you can rent it from me for 2 € (limited number available). You can also rent a racket from the venue for 5 € **Price** * 16-19 € for 2 hours depending on number of players * I use the money to cover the costs for the court, balls and rackets. * You can pay via Revolut, PayPal, instant Bank Transfer or Cash. I prefer transfer over cash. **Cancellation** * Please cancel at least 10h before the event, to give people on the wait list the chance to jump in. Otherwise a late cancellation fee of 10 € must be paid. * Cancel at least 26h before the event in case the wait list is empty. Otherwise a late cancellation fee will be charged * Late Cancellation fees will be donated to Médecins Sans Frontières (Ärzte ohne Grenzen). * I understand that sometimes unexpected things can come up. However, not showing up and failing to let me know is considered disrespectful and goes against the community spirit. People doing uncommented no-shows have to pay the full event fee. **Important** * Playing competitive is allowed (Smashing balls, hitting balls close to opponent player etc.) * We still value fair play and sportsmanship. * Having fun together is way more important as winning. **Other information** * The venue has courts **outdoor only**. Dress accordingly to the weather * We are respectful and warm with each other. Our cultural and professional background is diverse * The host or regular players can ask misbehaving players to step out from the court * The venue has changing rooms and showers free of charge * If you have questions, you can send me a message any time. I speak german too. * I will post the court numbers in the comments, once I know them (\~ 10-15 Minutes before the event starts) * If you have trouble finding me, there is a 90% chance I am wearing a orange shirt

✨Today evening — rooftop coffee & conversations at Zoku ☕🌇 ⭐️A casual evening to meet open-minded people living and building things in Vienna. ⭐️Just a group of interesting people, good coffee, a rooftop view over Prater, and conversations. Conversation topics can be anything:— life in Vienna— travel & moving abroad— culture, relationships & life experiences— favorite places, ideas, random thoughts—or whatever naturally comes up. ⭐️Free to join.Come for 20 minutes or stay the whole evening. ✨Join our Instagram for more events https://www.instagram.com/vienna_friends?igsh=YjA2czVxNjF0cGJi&utm_source=qr

Hello Viennovans! Pickwick's is getting quizzical every monday night! You have a chance to win a round of shots, a 40€ bar tab and/or eternal bragging rights 😉 Teams of up to 6 people, reserve your spot today! Start time is 7! FREE SHOT FOR EVERYONE COMING FROM VIENNOVA!

Vienna Networking Salon combines the atmosphere of the great Viennese salons with modern business networking. Historically, salons were places where entrepreneurs, artists, thinkers, and influential people built long-term relationships, exchanged ideas, and closed important deals. This evening brings that concept into a contemporary format for Vienna’s international creative and business community. Participation fee is 10€ What the evening includes: • welcome networking and drinks • a 30-minute interactive workshop inspired by music, storytelling, communication, and collaboration • a second networking session after the workshop • a timed networking corner with curated 15-minute connection slots • a live classical concert by pianist Alla Belova • open networking and conversations after the concert The format is designed for founders, entrepreneurs, creatives, startup professionals, artists, and curious minds looking for meaningful business and personal connections in an elegant and genuinely human atmosphere.

**Location:** Sentry \| Jakov\-Lind\-Straße 5/4OG 1020 Wien \| [https://maps.app.goo.gl/ccu6A5W5Wm9YKcJ46](https://maps.app.goo.gl/ccu6A5W5Wm9YKcJ46) (entrance is next to Max&Benito, 4th floor) **Agenda:** 18:00 \| Arriving\, Networking\, Registration 18:30 \| Keynote and welcome 18:45 \| Talk 1 \| Evgenii \| Adapting Songs with ChatGPT \- How to Translate a Song Without Killing It 19:15 \| Break\, networking 19:30 \| Talk 2 \| Balazs \| Code\, Posture and AI: Preventing Spine Problems in Developers 20:00 \| Open Mic: 1\-Minute Lightning Talks \- add your slide here: [https://docs.google.com/presentation/d/13w2QJtmDnn3_YqJy9eRWbvgtyyc7t1ISF4nHNnnHMfE/edit?usp=sharing](https://docs.google.com/presentation/d/13w2QJtmDnn3_YqJy9eRWbvgtyyc7t1ISF4nHNnnHMfE/edit?usp=sharing) 20:15 \| Food\, Drinks & Networking till 21:00 ***Overview about Talks:*** **Talk 1st:** **Adapting Songs with ChatGPT** In this talk, I’ll explore how ChatGPT, Claude Code, and Suno can be used to adapt songs from Russian, Spanish, and Hindi into singable English. We’ll look at why literal translation often fails, how to preserve emotion, rhythm, and rhyme, and how AI tools can help turn raw meaning into lyrics that actually work as a song. **Talk 2nd:** **Code, Posture and AI: Preventing Spine Problems in Developers** This talk explores how AI-based tools can support early detection through posture monitoring, movement analysis, and ergonomic feedback, and where medical expertise is still needed to prevent long-term spinal damage. **About Dr\. Balazs Abraham \|** Balazs is a medical specialist in orthopedics and traumatology, he brings a perspective from outside the usual software bubble, connecting professional experience, curiosity, and cross-disciplinary ideas. **About Evgenii Avdeev \|** Evgenii has been playing music, singing, and performing since the age of five. In his free time, he enjoys vibe coding and experimenting with AI-assisted music and lyrics **Our sponsor:** Sentry \| [https://sentry.io/](https://sentry.io/) [Coding Club Vienna @Lindedin](https://www.linkedin.com/company/coding-club-vienna/)

Combinatorial optimization problems arise across logistics, scheduling, and engineering, and C++ remains a language of choice when performance matters. This lecture takes a practical look at solving such problems in C++, using the Electric Vehicle Routing Problem as a running example. We begin with an exact solver, formulating the problem as a mixed-integer program and trying to solve it through GLPK's C API directly from C++. Exact methods, however, quickly hit their limits on real-world instances. The second half of the talk turns to metaheuristics: how they are designed, why C++ is particularly well suited for implementing them, and what design choices matter most in practice. We'll walk through a concrete implementation, touching on data structures for fast neighborhood evaluation, generic algorithm design with templates, and the performance considerations that separate a prototype from a production-ready solver. The goal is not to advocate for one approach over another, but to show how C++ supports the full spectrum of optimization techniques. # About Speaker Luka Matijević is a researcher at the Mathematical Institute of the Serbian Academy of Sciences and Arts, whose work bridges academic research and freelance engineering. He's drawn to identifying the right algorithm for a given problem — and to the kind of careful optimization captured by one of his favourite Futurama lines: *"When you do things right, people won't be sure you've done anything at all."* ## 📅 Event Details | | | | --- | --- | | 👤 **Speaker** | **[Luka Matijević](https://www.linkedin.com/in/luka-matijevic/)** | | 🕕 **Date & Time** | **27th of May (Wednesday), 6 pm** | | 📍 **Location** | **Beograđanka, Vidikovac, 22nd floor** | | 🏢 **Address** | **Masarikova 5** | | 💻 **Online** | **[C++ Serbia YouTube](https://www.youtube.com/@cppserbia)** | See you!

Bring your JS interest and a good vibe! Everybody is welcome & feel free to share this invitation! **Talks and info:** All details: [https://viennajs.org/en/meetup/vienna-js-may-2026](https://viennajs.org/en/meetup/vienna-js-may-2026) **Timetable:** * 18:00: Gathering, food & drinks * \~18:45 - 19:00: Start of the first talk **Talks:** \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- 🗣️ Edouard Maleix ▶️ Context That Compounds: What I Learned Building a Memory Lifecycle for Coding Agents Most teams manage agent context with static rule files — CLAUDE.md, AGENTS.md, custom YAML checklists, skills, etc. I do too. Then I tracked what actually happened: agents repeated the same mistakes across sessions, rules accumulated without evidence they helped, and review load stayed constant no matter how many rules I added.This talk covers what I learned building and testing a different approach: treating context as a living artifact with a lifecycle — generated from real incidents, curated for gaps, compiled to token budgets, and evaluated before injection. The key insight: context you can't measure is context you can't improve.I'll walk through three concrete problems and the patterns I found to address them: 1. **Attribution** — when an agent opens a PR, you can't tell what it wrote, why, or whether a human reviewed it. Giving agents their own signing keys and git identity changes code review from guessing to auditing. 2. **Memory that persists** — Monday you correct an agent, Tuesday it makes the same mistake. I built a typed diary (episodic, procedural, semantic, reflection entries) that survives across sessions and compiles into token-budget context packs. The difference vs. static rules: rules authored from memory can't compound; entries harvested from incidents can. 3. **Evaluating context, not just code** — SWE-bench tests whether agents can fix bugs. I needed something different: does this context pack actually help the agent avoid known mistakes? I'll show why scenarios harvested from real incidents (20–67% baseline → 95–100% with context) wildly outperform auto-generated ones.The talk is grounded in real workflows, real failures, and real data. The patterns — identity, lifecycle-based memory, context-as-testable-artifact — are applicable regardless of which agent or framework you use. \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- 🗣️ Speaker to be announced \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- **🗣️Want to give a Talk?** ▶️ [https://viennajs.org/en/participate/give-a-talk](https://viennajs.org/en/participate/give-a-talk) **Location:** Dynatrace Austria GmbH THE ICON VIENNA ***Tower 24 - 22nd Floor*** Wiedner Gürtel 13, 1100 Vienna When you arrive in the ICON tower, walk straight to the info point and ask for a visitor’s card for Dynatrace (**22nd floor**). They will explain the way to Tower 24. Walk through the 1st glass door. At the 2nd glass door, you will need your visitor’s card (left side) and hold it against the card reader to open. Hold your visitor card against the card reader at the turnstiles, walk through it, and look at the screen on your slide (while entering). Don’t move too close to the gate before using your card, as it might block you. The screen will display a letter (A-D) about which elevator you need to take. You can also check your designated elevator by holding the card under one of the elevator screen panels. At the elevator entrance is a small display showing you the floor where it is going -> enter if you see the number 22. **Sponsor:** 🙏 Dynatrace Dynatrace definitely is one of Austria’s big success stories in recent history. Founded in 2005 in Linz, we're now one of the fastest-growing SaaS companies on the planet. Dynatrace is the market leader in software intelligence, that is: We provide full-stack insights into user sessions, applications' runtimes, and infrastructure. And guess what? We're looking for JavaScript developers: [https://careers.dynatrace.com/jobs/?country=Austria&category=Engineering](https://careers.dynatrace.com/jobs/?country=Austria&category=Engineering) **🙏 Want to sponsor?** We are looking for more sponsors! If you are interested please contact us via [viennajsmeetup@gmail.com](http://viennajsmeetup@gmail.com/) or at [viennajs.org.](http://viennajs.org./) \*\*\* **Don't forget to RSVP!**

**Hey everybody!** Do you want to code together, share your projects, or just hang out in a creative atmosphere? Then join us at the **Coding Club @ Jo&Joe Hostel**! We usually start with a short introduction round so everyone can get to know each other. After that, you can: * share your achievements or pet projects (informal, just at the table) * get feedback or inspiration from others * or simply work on your own project alongside the group Bring your laptop (or any device you like to code on) if you want to actively work. Or just come by to connect and get inspired. Please try to be on time so we can kick things off together. Looking forward to seeing you there! 🚀

📖 Time to revisit our classic format and **talk about a great book** again🤩! At our May event, we'll discuss **Vivienne Ming's** “***Robotproof: When Machines Have All The Answers, Build Better People***”. Vivienne is is an American theoretical neuroscientist and artificial intelligence expert, and a self-professed Professional Mad Scientist. Her life and work are both extraordinary, and her latest book provides an actionable framework for rising above the “*the homogenized, vanilla world associated with AI”* (Forbes). There’s lots to mull over, get inspired by, and take home from her writing - so don’t hesitate and join the discussion! Don’t worry if life is too busy to read a whole book: It is absolutely not mandatory. We’ll provide enough information so everyone can learn something and connect insights to their own thinking and experiences. If you want to familiarise yourself with the author’s work, there are lots of podcasts you can listen to, like this one: [https://podcasts.apple.com/at/podcast/stop-letting-ai-think-for-you-dr-vivienne-ming/id212382281?i=1000758167430](https://podcasts.apple.com/at/podcast/stop-letting-ai-think-for-you-dr-vivienne-ming/id212382281?i=1000758167430) There’ll also be time for **networking and conversation** over drinks and snacks (donations welcome, please bring some cash 😊). By participating, you agree that your likeness may be recorded and authorise UX Vienna to use any such recordings for event documentation and promotional purposes.

Let's start our regular meetups again! All yarn crafters (knitters, crocheters, yarn spinner, yarn witches, etc.) and masters of other crafts are invited to come and join us. Let's bring our needles, hooks, yarn and work together on our latest projects while catching up and getting to know each other :) please note that the number of participants on Meetup is limited because not everyone is registering on meetup and registering via our whatsapp group. If you would like to join our group, drop me a line :) All levels are welcome! Whether your a needle ninja or a crochet padawan, you will find here a community to welcome you and help you on your crafting journey!

KI ausprobieren kostet Zeit. Und meistens läuft es zuerst schief. Genau dafür haben wir unsere Learning Fridays: ein geschützter Rahmen, in dem Gepardec-Teams echte KI-Technologien testen – ohne Kundendruck, ohne Deadline. Was funktioniert. Was nicht. Und warum. Am 29. Mai teilen wir das offen. Was du konkret mitnimmst 👉 Du sparst dir die Umwege, die wir bereits gegangen sind: 🔬 AI-gestützte Systemanalyse – Welche LLM-Tools für Enterprise-Kontexte taugen, welche nicht – und was MCP wirklich bringt. ⚙️ AI-Assisted Code Migration – Wo Konveyor AI bei WildFly→Quarkus-Migrationen wirklich hilft und wo du trotzdem manuell ran musst. 🦙 Tune das Llama – Was beim Fine-Tuning eines lokalen LLMs schiefgeht, bevor es funktioniert – Datenmenge, Konfiguration, Evaluierung. Für wen ist das relevant? 👉 Für alle, die KI in ihrer Softwareentwicklung einsetzen wollen – aber keine Zeit haben, bei Null anzufangen. ────────────────────────── 08:30 → Frühstück (Wien & Linz) 09:15 → Unsere Haltung zu KI (ab hier auch Remote) 09:30 → AI-gestützte Systemanalyse 10:15 → AI-Assisted Code Migration 11:15 → Tune das Llama 12:00 → Unser Angebot: Gemeinsames KI-Projekt 12:15 → Networking 📍 Vor Ort: Frühstück inklusive 💻 Remote: Google Meet 👉 Anmeldung bis 26.5.: https://www.gepardec.com/ki-learning-friday/ #KI #LLM #Quarkus #MCP #FineTuning #Gepardec #SoftwareEntwicklung #KonveyorAI

Bring your work or your hobby, hang out, and code with us. Follow @buckeyecocoa for more information.

Come out to Improving for our monthly iOS and Mac meetings. This Month's Presentation: Nothing yet. (You should volunteer). What is Cocoaheads (http://cocoaheads.org/)? CocoaHeads is a group devoted to discussion of Apple Computer's Cocoa Framework for programming on MacOS X and iOS (including the iPhone, iPad and Apple Watch). During monthly meetings, members present on their projects and offer tutorials on various programming topics. What is BuckeyeCocoa (http://buckeyecocoa.org/)? BuckeyeCocoa is a group of Objective-C/Swift developers/enthusiasts. We host monthly Cocoaheads and near-weekly NSCoder meetings in Columbus, Ohio. The meetings are free to attend. Presentations! Presenters welcome! We are always in need of people willing to present material. Any Swift and/or Objective-C related topic is welcome. Times can be 5 minutes (i.e. lightning talks) to a maximum of 2 hours. Interested? Contact info is on the BuckeyeCocoa website. To volunteer for a presentation contact us at @BuckeyeCocoa on Twitter. Follow us on Twitter! @BuckeyeCocoa (https://twitter.com/#!/Buckeyecocoa/) For more information: http://buckeyecocoa.org/

**Important time note:** Please plan on arriving between 5:30 and 6:00 as the elevators lock after 6 and you'll need to message us and we'll need to come get you. The building address is 4450 Bridge Park The entrance is 6620 Mooney St, Suite 400 You will need to scan your ID at the door to get a visitor badge. **Abstract** Like it or not, AI agents are now capable of turning a quickly written paragraph of requirements into a pull request that is ready to be integrated into real-world production applications and it's now our responsibility to make sure AI doesn't go rogue and take down prod - or corrupt our data by misunderstanding the requirements or our existing schemas. In this session we'll explore strategies to protect our codebases through unit and integration testing, documentation, and code review along with additional ways of providing context and guard rails to our AI agents as they carry out the work we've assigned them to do. By the time we're done, you'll have a firm grasp of the problem and understand some helpful options for protecting your codebase from vibe coding mishaps getting YOLOed into prod. **YouTube Link** TBD

PLEASE NOTE!!! This event will be In-Person for our very 1st Improving collab! If you know the [Columbus Unity group](https://www.meetup.com/columbus-unity-user-group/) location, we'll be at the same place. This is our 1st event and are doing a soft launch with limited attendance. 1st come 1st serve. If you want to be there and we fill up, please email me at [info@thecogg.com](mailto:info@thecogg.com) and I'll be in touch. All street parking is free on Sundays but you can also pay to park in any of the local garages. See image of [parking map here](https://drive.google.com/file/d/1Mr9_LFIggbs-0_Zd3AJTGNqEhgMf2TzQ/view?usp=sharing). \-\-\- On the last Sunday of the month, we're having our usual end-of-the-month social gathering with our GameDev Meetup meeting. There will be announcements and presentations followed by some social networking Let's continue the conversations with good vibes and friends. All are welcomed from all ages and backgrounds to this public event. If we can, we'll be streaming or uploading the video later via our COGG YouTube channel here: [https://www.youtube.com/@TheCOGG/streams](https://www.youtube.com/@TheCOGG/streams) (Also please do subscribe if you have not done so!) No game development experience required! If you are interested in doing a 20 minute game development related presentation, please fill out our form online here: [https://goo.gl/forms/lVdTJZiNJewlPJuj1](https://goo.gl/forms/lVdTJZiNJewlPJuj1) Or e-mail us at info@thecogg.com with the following: Your Name, Company/Affiliation, Name of Your Game/Topic, Description, Tech Needs, and Your Contact. Be sure to check out our Discord for real time news updates: [https://discord.gg/NrBhuNQ](https://discord.gg/NrBhuNQ)

Our monthly PHP meetup. A virtual shindig courtesy of Zoom. Check back here for the details around 6:15 pm

**Latest Dojo Location!** **Knotty Pine Brewing** 1765 W 3rd Ave, Columbus, OH 43212 We're going to try a new dojo location for a few weeks and see how it works Dojos are informal Python group study sessions where everyone interested in Python gathers to learn about Python, help others with Python, or just hang out. Everyone is welcome from Python beginners to experts. Bringing a laptop is encouraged (we'll have extension cords and power strips). If there's something you want to learn leave a comment on this invite so we can plan ahead. We're looking for speakers for our Monthly Meetups! Fill out the form if you are interested in presenting to the Python Community. https://forms.gle/ehSfUAC2WgR34Crq9