Ex-Mormon

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!

Some trained COUNT volunteers work together once a month at RMH (http://www.rmhc-centralohio.org/volunteer.php) as Housewarmers (usually on the 1st Sunday from 1 – 5 PM). Some schedule other shifts at their convenience. You may try this out with less fuss by following a "Fast track" or go through the normal process. Fast track • Arrange a time to shadow a COUNT volunteer. Call Dave Nohle at 614-268-9558 (cell). • Show up and try it out. • Complete application, etc. later. Normal process • Complete an online application (http://rmhc-centralohio.org/volunteer/). • Attend orientation in advance. • At orientation you will complete forms agreeing to keep family/patient info private and allowing a background check and tour the facility. • Complete one training shift. Daily shifts are: morning 9 AM - 1 PM, afternoon 1 - 5 PM and evening 5 - 9 PM. • Schedule shifts online using the on the RMH scheduling system (http://www.volgistics.com/ex/portal.dll/?FROM=32895). The Ronald McDonald House (RMH) provides housing and meals for families with sick children. The Columbus RMH is the largest in the world with 137 rooms. COUNT has been volunteering there since May 2014. Housewarmers work with RMH guests to provide a home-like environment - greet, assist with family needs, answer phones, give tours, assist with checkin/checkout, prepare guest rooms after checkout, clean facility, laundry, restock supplies and staff the front desk. RMH Housewarmers volunteer at least one four-hour shift a month. All Housewarmers must complete an application and agree to a background check before they can be full fledged volunteers.

How do we recover from having had a toxic or narcissistic ex? How do we move on from the past, especially something as traumatic as a divorce or breakup? How do we avoid anxiety and depression? How do we have more self esteem? In this meeting, you will learn the mental health secrets to help you quickly get over the past and heal your mind. Be sure to click on the red "Attend" button below to come to this local event. We look forward to seeing you there. This group is created by the Dianetics & Scientology life improvement center.

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!

Start your week the right way with Manic Mondays. Giving you an enjoyable Bachata lesson with a push of cool moves. The second hour has Beginner/Intermediate Salsa on 1. You must understand basic Salsa skills to participate. 730pm-830pm Bachata Cool Moves 830pm-930pm Salsa On 1 (Beginner/Intermediate) 15 for One Class 20 for Both Free Parking & Plenty of Dance Space. Viva Dance Columbus 2809 Festival Lane Dublin OH 43017

On a list of "My Favorite Things", few people would put a "break up" in their top ten. More often, these words evoke feelings of shame, embarrassment, poor choices, and bad or sad endings. Before the new and beautiful can be built, the old, broken, and unnecessary must be cleared away. This process can be painful, but it is good, needful, and can produce wonderful results when done wisely and well. How does one break free from anxiety, comparison, or shame? Christian Bevere points people to the freedom God desires for His children, as well as giving practical ideas on how to shed both unhealthy baggage and the lies that seek to leave us anchored to past failure. Drawing from the Bible, ***Break Up With What Broke You*** clearly shows that what Satan would seek to use for evil, God uses for good and to accomplish His purposes. Join us **Tuesday, June 2, 2026, at 6:30 pm**, when we gather at **True Food Kitchen, Easton Town Center, Columbus**. We'd love to see you there! Get your tickets on [EventBrite](https://www.eventbrite.com/e/break-up-with-what-broke-you-columbus-ohio-tickets-1987018079565)! Check us out on [Facebook](https://www.facebook.com/events/1431801124815007/)!

We may pick a specific topic and post in advance or may discuss current events and various ad hoc topics . We would love to spend time hanging out and getting to know one another. Atheist, agnostics, other non-theists, and atheist-friendly people are welcome to join us. Note: COUNT operates a Facebook page at www.facebook.com/groups/COUNT.discussions (http://www.facebook.com/groups/COUNT.discussions/) to promote discussions among members and visitors.