World Finals team selection rules from Asia Pacific (2021-2022 cycle)
Due to COVID-19 outbreak, this year’s Asia Pacific rules will
again be quite different from those of usual years. The plan
for having an Asia Pacific semi-final contest (play-off contest)
has been cancelled and postponed to the next year.
Only the following five regionals will be held this year.
Hanoi, Vietnam
Jakarta, Indonesia
Seoul, Korea
Taipei, Taiwan
Yokohama, Japan
Hanoi and Jakarta regionals will accept foreign teams online.
Other three regionals are planning to have on-site contests,
but they may switch to online if the COVID-19 situation gets worse.
We have set a team participation rule. This rule is a special one
for this year (2021 cycle) only.
Teams from a hosting country (Indonesia, Japan, Korea, Taiwan and
Vietnam) can only join the regional held in their own country.
Universities from non-hosting countries should choose an online
regional (Hanoi or Jakarta, but not both). Note that all teams
from a single university have to join the same regional.
World Finals team selection rules are as follows.
[ World Finals slot allocation ]
Apply Steps A1 through A4 below in this order.
A1. Define the site score of a regional as follows.
0.56 * number of universities in regional
+ 0.24 * number of teams in regional
+ 0.14 * number of universities in preliminary contests
+ 0.06 * number of teams in preliminary contests
+ 0.3 * number of foreign teams
Only teams or universities solving at least one problem are counted.
A2. Sort our five regionals according to their site scores.
A3. Allocate two World Finals slots each to Hanoi and Jakarta regionals.
Allocate one slot each to the other three regionals.
A4. Let N be the number of World Finals slots given from the ICPC
Headquarters. Until the sum of the number of allocated slots
(including those in Step A3) reaches N, allocate slots to regionals,
one by one, in the descending order of their site scores. When
all five regionals are allocated one slot each, continue from the
regional with the highest site score in the round robin fashion.
[ Team selection for World Finals ]
For Hanoi and Jakarta regionals, apply Steps B1 and B2. For other
three regionals, apply Step B3.
(Hanoi and Jakarta)
B1. Let K be the number of slots allocated to the regional. K-1
highest ranked universities are selected. The team with the
highest rank in the university is automatically selected.
B2. Among universities from the hosting country not selected in Step B1,
select the highest ranked university, subject to the condition that
the rank (team rank) must be within top 10% of the regional. If
there is no such university, continue Step B1 with K-1 replaced by K.
(Seoul, Taipei and Yokohama)
B3. Rules for other three regionals are quite simple. Select the
highest ranked universities. The team with the highest rank
in the university is automatically selected.