2017 CMUT BeihangU Contest, Editorial

Revision en6, by skywalkert, 2019-08-18 16:38:44

This editorial corresponds to 2017 Chinese Multi-University Training, BeihangU Contest (stage 1), which was held on Jun 25th, 2017.

There are 12 problems in total. You can solve them as a team member or an individual in a 5-hour contest. By the time you join as virtual participants, 770 teams, or even more, will compete with you virtually.


Editorial in the English version has been completed, which is a bit different from its Chinese version (mostly because I don't want bad editorials to ruin the contest, lol). However, for the sake of hiding spoilers, editorials are locked and will be shown as the following conditions are met:

  • Editorials for the easiest 4 problems will be revealed after the replay (all unlocked);
  • Each for the hardest 5 will be released if the corresponding problem has been solved by at least 5 users or teams on Codeforces::Gym (3 unlocked);
  • Each for the others will be published when the relevant problem has been solved by at least 10 users or teams in virtual participation (including the replay) on Codeforces::Gym (all unlocked).

Or you can find solutions in comments?


102253A - Add More Zero

Idea: skywalkert

solution

102253B - Balala Power!

Idea: sd0061

solution

102253C - Colorful Tree

Idea: sd0061

solution

102253F - Function

Idea: chitanda

solution

102253G - Gear Up

Idea: constroy

solution

102253H - Hints of sd0061

Idea: constroy

solution

102253I - I Curse Myself

Idea: sd0061

solution

102253J - Journey with Knapsack

Idea: skywalkert

solution

102253K - KazaQ's Socks

Idea: chitanda

solution

102253L - Limited Permutation

Idea: skywalkert

solution

Hope you can enjoy it. Any comments, as well as downvotes, would be appreciated.

Tags #editorial

History

 
 
 
 
Revisions
 
 
  Rev. Lang. By When Δ Comment
en7 English skywalkert 2020-04-22 22:16:43 2055 unlock tutorial for problem D (sorry for coming late)
en6 English skywalkert 2019-08-18 16:38:44 1266 unlock tutorial for problem H
en5 English skywalkert 2019-07-26 11:00:25 6905 unlock tutorials for problems C, G, J, L; add DFS meaning
en4 English skywalkert 2019-07-18 15:06:38 2214 unlock tutorial for problem I
en3 English skywalkert 2019-07-01 21:44:42 36 highlight some 'solution' as 'editorial' and fix a typo in the editorial for A
en2 English skywalkert 2019-07-01 18:06:20 2750 add editorial for easiest 4 problems
en1 English skywalkert 2019-06-30 22:49:46 1417 Initial revision (published)