Cashflow

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!

Join us as we get together to see Paul Rudd in the latest comedy-drama-musical from John Carney, POWER BALLAD! The film follows a washed-up wedding singer, a fading boy band singer and a stolen hit song. Here’s a description, trailer and plan for this event: DESCRIPTION: Rick, a washed-up wedding singer, and Danny, a fading boy band star, bond over music and a late-night jam session. When Danny turns Rick's song into a hit, Rick sets out to reclaim the recognition he believes he deserves. Power Ballad is written/directed by John Carney, the master of the modern musical and creative mind behind Once, Begin Again and Sing Street! It stars Paul Rudd, Nick Jonas, Peter McDonald, Marcella Plunkett, Havana Rose Liu and Jack Reynor. BUZZ & ACCLAIM: The film premiered to rave reviews at this year’s Dublin International Film Festival where critics call it “a sure-fired crowd-pleaser” that “just might be the feel-good hit of the year!” Others say, “Paul Rudd delivers a career-best performance in this charmer” that’s both “hilarious and deeply moving!” SUMMER OF ICE CREAM, VOL 2: SHAKE NO. 8! Ranked the #1 Ice Cream Shop in Columbus in 2024, this is the perfect place to kick off our Summer of Ice Cream and grab a sweet treat after the show! Their menu features an array of traditional, specialty and vegan shakes, hot cocoa, and more! You can check out their full menu here: [https://www.shakeno8.com/menu.php](https://www.shakeno8.com/menu.php) PLAN: We’ll plan for a 7pm-ish showing and will meet in the lobby area about 20 minutes before the show. Once showtime is announced, advance ticket purchase is advised! Once you have yours, please list your seat number in the Comments section of this event. We'll head to nearby Shake No. 8 immediately following the show! Should be a fun one, Dan

Welcome to Casual Boardgames, where we enjoy classic tabletop games and social deduction games while bonding over good food, drinks, and great conversations. 
We started this group to meet new people and make new friends, and bonding over games in a relaxed atmosphere is a great way to do that. We currently meet near route 23 and Polaris Parkway, and this is close to areas like Powell, Lewis Center, Worthington, and parts of Westerville and Columbus. 
Feel free to bring your own games or play one of the many games our members bring. If you are inexperienced, we will help you learn. 
Here are just a few examples of the kind of games we play. 
Tabletop/board games: Splendor, Catan, Azul, Dominion, 7 Wonders… 
Social deduction games: Code Names, Chameleon, Werewords… 
IMPORTANT: 
1. While we love playing a variety of games and competing, we are not just about the games. We interact and talk while playing, and this leads to a lot of laughter and fun. If you just want to compete and focus solely on the game, then this is probably not the group you are looking for. 
2. Many people join groups like this and never (or rarely) show up after weeks or months. If you join and never really come, we will eventually remove you from the group as a courtesy to our members. Why? Because limiting group conversations (on the app) to regular members makes communication and planning much easier. Also, while it may be rare, it protects members from people who join because they are interested in following a person instead of having a real interest in our group. If you get removed, it is just because you haven’t come, and we follow this protocol as a courtesy to our regular game players.

(Note: RSVPing here on meetup does NOT reserve your seat. To do that, you’ll need to register at our website, **[HERE](https://www.coreerocks.com/Events.aspx?ID=In-Person-Columbus-Meeting-How-I-Get-Private-Lenders-and-Partners-to-Fund-My-Deals-14-6-2-2026)**.) Tuesday, June 2nd, 5:00–8:30 PM Eastern Central Ohio Chapter Meeting IN PERSON IN COLUMBUS How I Get Private Lenders and Partners to Fund My Deals If you can’t fund it, you don’t have a deal. And right now, funding is where more investors are getting stuck. Private lenders are more cautious. Partners are asking better questions. And deals that look good on paper still fall apart when the money doesn’t show up. That’s why we’re bringing in a panel of investors who are actually getting their deals funded right now. You’ll hear how they’re finding money, structuring deals, and building relationships that lead to repeat funding. Here’s what you’ll learn: * Where they’re finding private lenders today * How they start conversations that lead to funding * What makes lenders and partners say YES * How they structure deals to be fundable * The biggest mistakes investors make when raising money * How to build repeat funding relationships **Early Session (6:00–7:00 PM Eastern):** **Having Trouble Finding Tenants? How Community Shelter Board Can Help** Nicholas Brenner will walk you through programs designed to help rapidly rehouse tenants, including financial support that can stabilize your rentals. **The Deal Room (7:00–7:30 PM Eastern)** Bring deals, funding needs, buyers, and problems. This is where connections turn into action. This meeting is for serious real estate investors nationwide, and we’re known for our high-content, real-life education and our nationwide community of dealmakers. Members and non-members at all levels are welcome. Register below to reserve your seat. Remember, to actually reserve your seat, you have to go **[HERE](https://www.coreerocks.com/Events.aspx?ID=In-Person-Columbus-Meeting-How-I-Get-Private-Lenders-and-Partners-to-Fund-My-Deals-14-6-2-2026)** and register on our website!

ASH is Atheists, Skeptics and Humanists of First Unitarian Universalists of Columbus Ohio TBD Snacks are usually available, and you are welcome to bringing something to share!

If you are interested in selecting investment choices for your 401(k) or other workplace savings plan, minimizing your income tax liability, or identifying the most effective investments for your brokerage account, we are the group for you. We are a local chapter of Bogleheads, whose investment strategy can be found here: https://www.bogleheads.org/wiki/Bogleheads%C2%AE_investment_philosophy Or you can peruse the Boglehead forum here: https://www.bogleheads.org/index.php I look forward to seeing you there. Mark Vonder Haar

[ECDI Pop-Up Market Official Registration Site --> https://www.eventbrite.com/e/ecdi-pop-up-market-tickets-1986071755083](https://www.eventbrite.com/e/ecdi-pop-up-market-tickets-1986071755083) Celebrate Small Business Month by shopping local for food, drinks, and handcrafted gifts! Join us for the ECDI Pop‑Up Market, a celebration of local entrepreneurs during Small Business Month. Explore delicious food and drinks, discover handcrafted goods, and shop unique items from small businesses in your community. Whether you’re looking to support local makers, discover new favorites, or pick up a thoughtful gift, this market has something for everyone. **What you’ll find at the market:** * Local food and beverage vendors * Handcrafted goods and unique gifts * A chance to meet and support small business owners in your community * An easy, fun way to discover new local favorites [SCORE Central Ohio](https://www.score.org/ "https://www.score.org/") will also be on site to talk about their small business mentorship program. **Market Vendors:** Baked Goods * Shante Makes Body Care * [Bellas Natural Beauty Products](https://www.facebook.com/Bellasnaturalbeautyprod/ "https://www.facebook.com/Bellasnaturalbeautyprod/") Clothing & Accessories * [The Krafted Kollection](https://www.thekraftedkollection.com/ "https://www.thekraftedkollection.com") * [Loayza Elegant Jewelry](https://www.loayzaelegantjewelry.com/ "https://www.loayzaelegantjewelry.com/") * [Swahili House 254](https://www.swahilihouse254.com/ "https://www.swahilihouse254.com") Food/Beverage * [Aqua Pure Central Ohio](https://aquapurecentralohio.com/ "https://aquapurecentralohio.com") * [Better Beverage](https://betterbevshop.com/ "https://betterbevshop.com") * [Cherays Banana Pudding](https://www.facebook.com/profile.php?id=61567527322952 "https://www.facebook.com/profile.php?id=61567527322952") * [Dr. May's Thai Kitchen](https://www.drmaysthaikitchen.com/menu "https://www.drmaysthaikitchen.com/menu") * [Kronchy LLC](https://www.kronchys.com/ "https://www.kronchys.com") * [Terra Mezcal Mexican Grill](https://terra%20mezcal%20mexican%20grill/ "https://Terra Mezcal Mexican Grill") Packaged Food * [Grow to Eat, Eat to Live](https://growtoeattolive.com/ "https://growtoeattolive.com/") * [Underworld Feast](https://underworldfeast.com/ "https://underworldfeast.com/")  Since 2004, ECDI has assisted Ohio’s entrepreneurs through their one-stop-shop business services model, suited to meet the needs of all entrepreneurs, regardless of what business stage they’re in. From providing capital to entrepreneurs looking to expand their businesses, to providing focused, business-specific educational opportunities to enhance entrepreneurial skill sets, ECDI works with their clients to meet their specific needs. Whether you merely have a business idea or are opening up your fifth location, we have helped more than 15,000 entrepreneurs to take advantage of the services we provide.

**✅ Bachata Mondays with Todd Smith!** **👉 Beginner Bachata Class** **$15 In Advance / $20 At the Door** . 7:00 pm – 7:15 pm … Registration 7:15 pm – 8:15 pm … Beginner Class . **👉 Intermediate Bachata Class** **= $15 In Advance / $20 At the Door** . 8:15 pm – 8:30 pm Registration 8:30 pm – 9:30 pm Intermediate Class . **👉 If You Take Both Bachata Classes** **= $25 In Advance / $35 At the Door** . **👉 Buy Advance Tickets Now at:** . https://columbussalsadancing.com/bachata-mondays-dance-class-tickets/