A Harder Contest '19

Welcome to the first annual Mackenzie A Harder Contest!

Parameters of the contest:

  • Contest duration: 3 hours
  • Number of problems: 5, full feedback, with partials (No clipped output)
  • Time bonus: 1 point for every 5 minutes before the end of the competition, multiplied by your score as a percentage, rounded down
  • First try bonus: 10 points for full AC on the first try

The problem setters are _, ssheep, ChrisT.

Before the contest date, you may wish to check out the tips page.

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:

  • 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++ and Java.
  • Read carefully, and try to attempt all the problems. They may not be as hard as they seem and you may get partial points!

Good luck, and have fun!


  • 0
    crackersamdjam  commented on Oct. 14, 2019, 11:03 a.m. edited

    What's the prize?


    • 7
      Riolku  commented on Oct. 15, 2019, 8:37 a.m. edited

      Frankly, I think that wleung_bvg would have done very well if he had not had to deal with incorrect data.

      Also I'm salty about the incorrect data too...

      • 5
        crackersamdjam  commented on Oct. 15, 2019, 8:50 a.m.

        Wesley can cheese ds but he can’t do any dp :wink:

    • -3
      Plasmatic  commented on Oct. 14, 2019, 11:04 a.m. edit 5

      screw u eric

      enter image description here

  • 2
    _  commented on Oct. 11, 2019, 12:16 a.m.

    Sorry about the inconvenience with the data for P5, its now been fixed and all submissions have been rejudged.

    • 7
      wleung_bvg  commented on Oct. 11, 2019, 10:22 p.m.

      It would also help if the problems were actually tested by more than one person before the contest started.

  • -1
    ReDeagle  commented on Oct. 9, 2019, 11:29 p.m.


    Olympiads Coders: Tryhard mode activated

    • 2
      Riolku  commented on Oct. 11, 2019, 10:31 a.m.

      This is not exclusive to Oly ;)

    • 1
      yeahbennou  commented on Oct. 10, 2019, 10:11 p.m.


      commented a day ago


      Olympiads Coders: Tryhard mode activated

    • 1
      AlanL  commented on Oct. 10, 2019, 9:19 a.m.

      What's tryharding? I don't even know how to code.

  • 11
    ssheep  commented on Sept. 30, 2019, 6:01 p.m.

    winner will get a prize :)