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WF2021teamsselectionrulesfromAsiaPacific2020

(2020-09-29 21:34:46)
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分类: ICPC-Asia-Regional
World Finals 2021 teams selection rules from Asia Pacific 2020

Due to COVID-19 outbreak, this year's Asia Pacific rules are
quite different from those of usual years.  We have announced
to have an Asia Pacific semi-final contest (play-off contest)
this year, but this plan has been cancelled (postponed to the
next year).

Only the following five regionals will be held this year.

   Can Tho, Vietnam
   Jakarta, Indonesia
   Seoul, Korea
   Taipei-Hsinchu, Taiwan
   Yokohama, Japan

Jakarta regional will be a fully online contest.  Other four 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 only.

   Teams from Japan, Korea, Taiwan and Vietnam can only
   attend the regional held in their own country or territory.
   Teams from other countries can only attend the Jakarta
   online regional.

World Finals teams selection rules are as follows.

[ World Finals slots allocation ]

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 to Jakarta regional, and one slot
    to each of other four regionals.

A4. Reserve one slot for wild card selection.

A5. Let N be the number of World Finals slots given from the Headquarter.
    Until the sum of the number of allocated slots 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 score in the round robin
    fashion.

[ Team selection ]

B1. Let K be the number of slots allocated to Jakarta regional.  K-1
    highest ranked universities are selected.  The team with the highest
    rank in the university is automatically selected.

B2. Among Indonesian universities 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.

B3. Rules for other four regionals are quite simple.  Select the highest
    ranked universities.  The team with the highest rank in the
    university is automatically selected.

B4. The wild card slot is given to a university that is agreed upon
    among Asia Pacific RCDs.

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