Logistique

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.

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.

By popular demand, the group wanted to read and discuss the semi-autobiographical novel by Henri-Pierre Roche, that inspired the Truffaut movie we watched last year. The book is available through the Columbus Library's interlibrary loan system. They reported there are twenty-eight copies available in the state of Ohio. If you have a library card, you can file an interlibrary loan request here: https://www.columbuslibrary.org/library-services/ . There are also used copies available on Amazon and eBay for under twenty dollars. You may want to rewatch the movie after reading the book, so we can compare and contrast in our discussion. The Columbus Library has four copies on DVD, and it's streaming on HBOMax.

Christians in Tech is a community at the intersection of faith and technology. Our meetups are designed to spark meaningful conversations, promote knowledge sharing, and encourage growth—both in your career and your spiritual walk with God. Whether you're an experienced professional or just starting your tech journey, CIT welcomes you. Our Website [https://linktr.ee/citcbus](https://linktr.ee/citcbus) Sponsors and Partners * Improving (Venue Sponsor) * Bethel World Prayer Center (Fiscal Sponsor) * Fruits & Roots (Coffee Partner)

Bring your business cards and network in person with other business professionals! Gold Star Referral Clubs is one of the most established professional networking organizations in the country, with multiple groups in central Ohio. Join us!

Jimmy V's Grill & Pub in Grandview Heights. You are responsible for your own meal/drinks. We usually don't have any agenda other than eat, drink and talk. :) If the weather is nice we will be on the back patio, otherwise we are in the cigar room. This group has been meeting every Tuesday evening for over a decade. Many attendees do not RSVP on meetup. Please don't let the small number here discourage you. Anyone/everyone is welcome to come. We'd love to have you join us. COTA bus #5 comes to W. 5th and Wyandotte Rd. And it's a minute walk to the restaurant.

http://photos2.meetupstatic.com/photos/event/2/a/9/6/600_348310902.jpeg Instructor - Crow, HPS Class fee is $30 at the door or approved exchange RSVP with Advance pay of $25 (discounted) by PayPal on the web or by contacting Enchanted Elements (614) 437-2642. Reservations made directly to Enchanted Elements will be added to the class list manually not online. Private Instruction ~ Closed to the Public ~ Initiated Members Only Please come prepared for ritual. Blessings ~ Crow

Rev. Steven Clevenger is an ordained spiritualist minister with over 40 years experience as a Spiritual Healer, Clairvoyant and Spiritual Teacher, educated and trained at the White Lily Chapel. Rev. Siobhan Wolf Shaffer is an ordained spiritualist minister and certified medium and healer with over 20 years experience. She began her development in 1988 in Pennsylvania and continued when she moved to Ohio in 1998 where she studied at Rays of Lights Church with Rev. Steven Clevenger. Our full worship services consist of an inspirational lecture, healing meditation, and messages from the spirit world that serve to demonstrate evidence of eternal life. Please visit our Official Church Website (http://raysoflightchurch.com) for more information.

Join Bold Spirit Travel for an all-women’s journey through the [heart of Provence. ](https://www.boldspirittravel.com/journeys-1/south-of-france-provence-2026) From charming villages and bustling markets, to lavender fields and coastal cliffs, this adventure blends history, art, food, and stunning landscapes. Your base is a boutique hotel in Aix-en-Provence, the perfect hub for exploring southern France. *\*We can only take 10 women on this trip.* **Highlights** * **Aix-en-Provence** – stroll cobbled streets, browse colorful markets, and enjoy lively cafés. * **Marseilles** – tour its historic basilica and meet traditional soap makers. * **Arles & Wine Tasting** – explore Roman ruins and sip wines at Mas Valériole estate. * **Lavender Fields** – capture the beauty of Abbaye Notre-Dame de Sénanque. * **Cassis & the Calanques** – enjoy seaside scenery and an optional boat ride. * **St. Rémy** – wander the vibrant market and visit Van Gogh’s former monastery. * **Les Baux-de-Provence** – experience the dazzling immersive light show. * **Cabrières-d’Avignon** – discover lavender’s artistry at the Lavender Museum. **What's Included:** * 6 nights in a boutique hotel (shared occupancy; private upgrades available). * Expert Bold Spirit tour leader plus bilingual local guides. * Meals as listed in the itinerary. * Private ground transportation. * Pre-trip support: Zoom call, WhatsApp group, and packing guidance. **Why Travel With Us?** This Provence adventure is designed for women who love travel, culture, and connection. You’ll share meals, explore iconic sites, and enjoy the slower pleasures of the French countryside—with expert guidance and community every step of the way. **Pricing:** * **Trip Cost:** USD 5,885 * **Deposit:** USD 700 non-refundable (secures hotels and guides) Get in touch with us to set up a call and learn [more](https://www.boldspirittravel.com/journeys-1/south-of-france-provence-2026). Contact:[ https://www.boldspirittravel.com/contact](https://www.boldspirittravel.com/contact)