Wesley's Anger Contest 3

It is well known that wleung_bvg is always angry. To vent out his anger, he decided to create yet another contest. He also roped in Zeyu and Pookmeister to help create some problems.

With the CCC quickly approaching, this contest will be a great way to practice your problem solving skills. The difficulty will be easier than the previous two contests in this series. In addition, the contest will be run on judges that are 2 to 3 times faster than the standard judges.

Here are the parameters of the contest:

  • Contest duration: 3 hours.
  • Number of problems: 7, full feedback. Each problem will be worth 100 points, with some problems offering partial marks in the form of subtasks.
  • Rated for all participants who submit at least once.
  • Scoreboard will be hidden.
  • No incorrect submission penalty.
  • 50 submission limit per problem.
  • Ties will be broken by the last submission time that increased your overall score.
  • Checkers for problems: Unless otherwise specified, standard. Standard checkers are more lenient with whitespace characters than identical checkers.

Furthermore, users are forbidden from using multiple accounts or collaborating during the entire contest duration. Any suspicious behaviour during the contest window may result in a severe penalty including, but not limited to, being placed at the bottom of the scoreboard. Such behaviour includes, but is not limited to:

  • Registering for the contest with at least two accounts.
  • Participating in the contest with an account that is not your primary account.
  • During the contest window, talking about the contest in more detail than answering a yes/no question about whether one participated in the contest. This includes, but is not limited to, posting spoilers about the contest and public speculation of the contest.
  • Attempting to exploit bugs in the platform to subvert the constraints of the contest.

The problem setters for this contest are wleung_bvg, Zeyu, and Pookmeister.

Special thanks to Dormi, crackersamdjam, and Plasmatic, for providing feedback and testing the problems.

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

This contest will consist of 7 problems, the difficulty of which may range anywhere from CCC Junior to CCO level.

You will have 3 hours to complete the contest. After the contest window begins (1:00 PM EST of February 1st), 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 (11:59 PM EST of February 3rd), whichever comes first.

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

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

  • 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++. All problems have a time limit of at least 1.5x the reference solution, which is written in C++ and uses this template for I/O. If you're unable to see the template, you must solve this problem. Problems that have been tested in multiple languages may have language specific time limits.

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.


  • 3
    wleung_bvg  commented on Feb. 10, 2020, 1:36 p.m.

    We have temporarily switched the problems back to the old judges while we wait for the new judges to come back online. The time limits have been adjusted accordingly.

    In addition, we have decided to release a bonus problem!

  • 12
    Pookmeister  commented on Feb. 2, 2020, 1:56 p.m.

    Due to multiple people requesting for the contest to be extended in order to watch the Super Bowl, the contest has been extended by 24 hours.

  • 3
    failed_coder  commented on Feb. 1, 2020, 4:19 p.m.

    Will there be any editorial after contest ends?

  • 7
    wleung_bvg  commented on Feb. 1, 2020, 12:04 p.m.

    The contest has been moved up to 1pm. Thank you to the testers and other problem setters for your hard work to make this happen.

  • -10
    wleung_bvg  commented on Feb. 1, 2020, 3:15 a.m.

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