Hello, Codeforces!
The 2026 ICPC Gran Premio de Mexico 1ra Fecha was held a week ago. This is part of the 2026–2027 ICPC subregional season and the first contest of the 2026 Mexico Grand Prix, a series of cumulative contests for teams from Mexico and Central America to qualify for the Mexico Regional Contest.
Huge thanks to the problem authors: Marckess, Bashca, racsosabe, Juan Pablo Marin Rosas, and myself (IvanBorquez).
I would also like to thank the systems director for making it possible to have a platform for the contest Franco1010.
You can check the editorial (in Spanish) for the contest at the following link.
Feel free to use the comments to discuss the problems.
Good luck and have fun!









Authors of each problem
106495A - Anxiety at the restaurant — IvanBorquez
106495B - Bad LaTeX — racsosabe
106495C - Cactus Simple Path Queries — Bashca
106495D - Door 1 — Marckess
106495E - Erasmus Valthron — IvanBorquez
106495F - F(x,l,r) — Marckess
106495G - Gerald the mudcrab — IvanBorquez
106495H - Hidden Symmetry of Valdris — Marckess
106495I - Inner Product — Bashca
106495J - Just the right enchantment — Juan Pablo Marin Rosas
106495K - Kernel of the Disks — Bashca
106495L - Legendary Sort — Marckess
Auto comment: topic has been updated by IvanBorquez (previous revision, new revision, compare).
Auto comment: topic has been updated by IvanBorquez (previous revision, new revision, compare).