Hydro Contest
中

Complete technical operations for programming contests

Hydro Contest Technical Team runs judging platforms, workstations, networks, and onsite systems for regionals, invitationals, provincial contests, and industry challenges.

The team began at the 2022 ICPC Asia-East Continent Final. Across the last three seasons, we supported most regionals in the Asia-East area and carried the resulting processes, tools, and incident experience into each following contest.

Contest technical support

The team covers the full path from lab preparation to post-contest archives and works with organizers on a plan suited to the venue, platform, and staff.

Onsite contest operations

For regionals, invitationals, and provincial contests, we prepare and run workstations, judging platforms, networks, and onsite systems.

  • Build and deploy contest workstation images at scale
  • Install and verify Hydro or DOMjudge
  • Configure scoreboard, balloon, award-ceremony, broadcast, and venue-display tools
  • Train volunteers and help organizers establish onsite procedures
  • Monitor judging, networks, and workstations and respond to incidents
  • Export results, archive scoreboards, and assist with code-similarity checks

Online contests and focused challenges

We build online environments on Hydro and custom contest platforms, including support for special problem types and complete result publication.

  • Build and maintain online judging platforms
  • Plan judging and network capacity for the contest scale
  • Provide Windows-based anti-cheating and proctoring options
  • Run rehearsals and provide live incident response
  • Customize scoreboards, exports, and publication workflows
  • Configure dedicated problem types and submission environments for industry challenges

Recent contests supported

Across ICPC, CCPC, invitationals, and provincial contests, the team runs judging platforms, workstations, networks, and onsite systems.

Provincial Contest

Jiangsu Collegiate Programming Contest

Jiangsu

ICPC Invitational

ICPC China Invitational, Shenzhen

Shenzhen

ICPC Continent Final

ICPC Asia-East Continent Final

Hangzhou

ICPC Regional Contest

ICPC Asia Regional Contest, Hong Kong

Hong Kong

CCPC National Contest

CCPC National Contest, Chongqing

Chongqing

ICPC Regional Contest

ICPC Asia Regional Contest, Shanghai

Shanghai

CCPC National Contest

CCPC National Contest, Zhengzhou

Zhengzhou

ICPC Regional Contest

ICPC Asia Regional Contest, Shenyang

Shenyang

CCPC National Contest

CCPC National Contest, Jinan

Jinan

ICPC Regional Contest

ICPC Asia Regional Contest, Nanjing

Nanjing

Contest reviews
ICPC Regional Contest

ICPC Asia Regional Contest, Wuhan

Wuhan

Contest reviews
Provincial Contest

Shanghai Collegiate Programming Contest

Shanghai

View complete contest history

Platforms and projects

We run contests on Universal Cup Challenge and Hydro, and turn three seasons of onsite experience into a workstation image, an operations toolkit, and a scoreboard resolver.

Platforms

Universal Cup Challenge

Turns industry algorithm problems into dedicated tasks, judging environments, and scoreboards for high-level contestants online and onsite.

View Challenge events

Hydro

An open-source online judge for problems, submissions, judging, scoreboards, and contest administration.

Visit HydroDocsGitHub

Projects

Hydro Contest OS

A dedicated contest-season workstation image

Repackaged for the requirements of onsite contests in China, with the required tools and a preconfigured contest environment. It has been reused for three seasons and validated at multiple events.

  • Standardizes permissions and contest restrictions before deployment
  • Reduces per-machine setup and supports reuse across venues
About Contest OS

Hydro Contest Tools

A toolkit for more efficient contest operations

Covers pre-contest configuration, live monitoring, and post-contest verification for technical teams and organizers.

  • A simple interface lets volunteers get started in about five minutes and supports group training
  • Standardizes procedures and outputs to reduce communication and verification work
View xcpc-tools

Hydro Contest Resolver

A rebuilt scoreboard resolver toolkit

Reimplemented with a newer stack to reduce resource use and failure risk while preserving presentation quality. It has been used at multiple contests.

  • Processes and displays team photos with less coordination overhead
  • Supports presentation remotes and similar controls for smoother operation
Open Resolver

Contest technology collaboration

Tell us the date, scale, venue network, judging platform, and expected scope. We will use that information to plan preparation and onsite operations.

Send email
contest@hydro.ac
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