Mock CCC '18 Contest 4 Senior

This is the fourth contest in a series of mock CCC contests produced by rpeng. Unlike with previous contests, the other contest-setters do not wish to affiliate themselves with this contest.

Much like the real CCC, you will have 3 hours to do 5 problems with full feedback. You may submit no more than 50 submissions per problem. Additionally, the scoreboard will be disabled during the contests.

To emulate CCC, we will be using real CCC problems.

This contest will not be rated. Please do not discuss the contest until after the contest period is over.

CCO cutoff using this contest would have been a 60.

Problems

Problem Points AC Rate Users
CCC '03 S3 - Floor Plan 7 27.9% 2025
CCC '05 S3 - Quantum Operations 10p 34.4% 464
CCC '06 S4 - Groups 10 45.1% 347
CCC '00 S5 - Sheep and Coyotes 10p 4.3% 193
CCC '01 S5 - Post's Correspondence Problem 10 28.8% 324

Comments


  • -3
    tmwilliamlin168  commented on Feb. 9, 2018, 3:42 p.m.

    Is there something wrong with test case #4 for problem #1?


    • 0
      account_disabled  commented on Feb. 9, 2018, 11:59 p.m.

      hint: beware of pluralization :)


      • -3
        tmwilliamlin168  commented on Feb. 10, 2018, 1:37 a.m.

        I found test case #4 for problem #1 from the official site and it also uses incorrect pluralization.


    • 3
      Xyene  commented on Feb. 9, 2018, 3:48 p.m.

      The problem has been solved outside of contest a couple hundred times (not including the real CCC), so the test cases are most likely correct.