DMOPC '18 October Contest

Welcome to the second DMOJ Monthly Open Programming Competition of the 2018-2019 season!

The problem writers this time are Kirito and r3mark.

Please note that the contests this season will be full feedback, unlike previous DMOPCs which used the pretest/systest format.

This round will be rated for all participants who submit at least once.

Before the contest date, you may wish to check out the tips and help pages.

This contest will consist of 6 main problems, the difficulty of which may range anywhere from CCC Junior to CCO level.

Some problems offer partial marks in the form of subtasks. If you cannot solve a problem fully, we encourage you to go for these partial marks.

You will have 3 hours to complete the contest. After the contest window begins, you may begin at any time. Once you enter the contest, your personal timer will start counting down and you will be able to submit until 3 hours from when you started, or until the hard deadline (noon EST of Oct. 10th), whichever comes first.

Additionally, this contest will feature a 7-th problem (Problem 0) for students who are just getting started with programming.

After joining the contest, you proceed to the Problems tab to begin. You can also go to Users if you wish to see the rankings.

We have listed below some advice as well as contest strategies:

  • Start from the beginning. Ties will be broken by the sum of times used to solve the problems starting from the beginning of the contest. The last submission time of your highest score will be used.
  • It is not guaranteed that the problems will be in order of increasing difficulty. Reading all of the statements is recommended.
  • Remove all extra debugging code and/or input prompts from your code before submitting. The judge is very strict — most of the time, it requires your output to match exactly.
  • Do not pause program execution at the end. The judging process is automated. You should use stdin / stdout to perform input / output, respectively.
  • It is guaranteed that all the problems will be solvable with C++.

At the end of the contest, you may comment below to appeal a judging verdict. In the case of appeals, the decision(s) of DMOJ staff is final.

Problems

Problem Points AC Rate Users Editorials
DMOPC '18 Contest 2 P0 - Mimi and Video Games 3 46.7% 437 Editorial
DMOPC '18 Contest 2 P1 - Pumpkin Patches 3 57.9% 441 Editorial
DMOPC '18 Contest 2 P2 - Booster Cushions 5p 18.3% 188 Editorial
DMOPC '18 Contest 2 P3 - Thanksgiving Feast 10p 41.7% 318 Editorial
DMOPC '18 Contest 2 P4 - Damage Output 7p 22.0% 446 Editorial
DMOPC '18 Contest 2 P5 - Another Sequence Problem 15p 12.8% 50 Editorial
DMOPC '18 Contest 2 P6 - Standing Ovation 30p 16.2% 15 Editorial

Comments


  • 10
    leehoss  commented on Oct. 10, 2018, 4:10 p.m.

    interesting and suitable level problems contained contest!


  • -14
    Kirito  commented on Oct. 10, 2018, 2:38 p.m.

    This comment is hidden due to too much negative feedback. Show it anyway.


    • 7
      eric574  commented on Nov. 2, 2018, 5:43 a.m.

      Both of these users submitted the exact same code during different time intervals in the contest: https://dmoj.ca/src/1040233 and https://dmoj.ca/src/1038998.


      • 3
        Rimuru  commented on Nov. 2, 2018, 9:24 p.m.

        And as we don't tolerate cheaters (especially when it causes rating manipulation), the contest has been re-rated.