UKIEPC Practice Events

 

UKIEPC Spring Practice 2025

19th April 2025, 12noon (London timezone) for 2:30 hours

The contest will follow the ICPC rules with teams of up to two people that can use two computers simultaneously.

Everyone in UK and Ireland are eligible to participate (not only students). However, we do not suggest very experienced participants to participate (close to the target rank on Codeforces, 2700+). If you are unsure whether you should participate or not, please contact us.

The testing system will be Kattis.

The registration for the contest is obligatory and will be open until 15th of April 23:59 (London timezone). The form is here.

More detailed information about where to access the testing system and how will be sent closer to the contest on the registered emails.

Contact: ukiepc@gmail.com.

Contest Locations

By default, the contest will be held online.

However, there will be a small onsite in London at Recraft AI office (Labs ATRIUM, The Stables Market, Chalk Farm Rd, London NW1 8AH). The capacity is limited, so the slots will be provided greedily in the order of the registration.

Rules

During the contest you will be given several problems. To solve a problem, you need to submit the code that reads a test from the system input and outputs an answer in the specified format in the system output. Then, the testing system runs the code on the tests, hidden from participants. We suggest all our participants to get familiar with the Kattis system on the open set of problems.

Solutions to problems submitted for judging are called runs. Each run is judged on the hidden tests and is accepted or rejected, while the team is notified of the results. Rejected runs will be marked with one of the following:

  • compilation error (CE)
  • run-time error (RTE)
  • time-limit exceeded (TLE)
  • wrong answer (WA)

Teams are ranked by:
  • Number of problems solved. Higher is better. In case of tie, the penalty is considered.
  • Penalty. Lower is better.
    • Penalty is the sum of the times at which each problem was solved, in minutes.
    • For each incorrect submission, a penalty of 20 minutes is added.
    • Note that only problems which are solved are considered for calculating the penalty.
    • Any extra submissions for a problem after it is solved are ignored.
  • If a tie still remains, the time at which the last successful problem was solved is used. Lower is better.

The appeals to the results of the contest will be accepted during 24 hours after the end of the contest on ukiepc@gmail.com email.

Past Practice Contests