The Inaho Contest

Inaho! What a wonderful name. Unfortunately, it is also insignificant's and Ninjaclasher's favourite problem, and so we have decided to mock it by creating 5 more problems named after it! These problems will be very obscure, weird, and break the boundaries of your imaginative capabilities, and so we hope you try them out.

The Inaho Contest will be a 3-hour virtual contest, which will allow contestants to participate in any 3-hour window between 12:00 PM EST, January 6, 2018 and 12:00 PM EST, January 7, 2018. Of course, it is forbidden to use two accounts to participate, and it is also forbidden to discuss the problems and/or their solutions with other people during the entire contest period.

This contest will not be rated.

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

The contest consists of 6 questions with a wide range of difficulties, and you can get partial marks for partial solutions in the form of subtasks. If you cannot solve a problem fully, we encourage you to go for these partial marks. The difficulty of a problem may be anywhere from CCC Junior to CCO level. It is highly recommended to read and attempt all of the problems. You will have 3 hours to complete the contest. After the contest window begins, you may begin at any time. 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 (January 7, 12:00 PM EST), whichever comes first.

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.
  • 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 our staff is final.

Problems

Problem Points AC Rate Users Editorials
Inaho II 25p 13.6% 32 Editorial
Inaho III 17p 18.7% 33
Inaho IV 5p 48.7% 160 Editorial
Inaho V 3p 18.8% 213 Editorial
Inaho VI 10p 31.2% 43 Editorial

Comments


  • 1
    SamZhangQingChuan  commented on Jan. 21, 2018, 2:35 a.m.

    Could you plz update the editorial? It'll be very appreciated. Thanks in advance.


    • 1
      Ninjaclasher  commented on Jan. 21, 2018, 3:57 a.m.

      Tomorrow (hopefully). The editorial is still a work-in-progress. I've been really busy with exams/culminating projects. Sorry!


  • 3
    BaturaDima  commented on Jan. 9, 2018, 11:09 a.m.

    Where can I find editorials (problems 2 and 6)? Link for problem 6 editorial does not correct.


    • 5
      Ninjaclasher  commented on Jan. 9, 2018, 1:20 p.m.

      There is no public editorial for Inaho VI yet, and the link is a bug. The editorial should be released later today. The editorial for Inaho II and III will take a while to write, so they should be released sometime next week.


  • -13
    anasschoukri2  commented on Jan. 7, 2018, 2:05 p.m.

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


    • 10
      Ninjaclasher  commented on Jan. 8, 2018, 9:54 p.m.

      LOL, proper English sentences don't end with semicolons.


  • 7
    reeee  commented on Jan. 6, 2018, 8:17 p.m.

    How did P2 get solved in 2 minutes?


    • 3
      Kirito  commented on Jan. 8, 2018, 8:04 p.m.

      Looks like they copy-pasted AQT's code for that problem, and presumably the other ones too...


      • 5
        AQT  commented on Jan. 8, 2018, 10:03 p.m.

        Just putting it out there, soohotiam is not my alt. Can someone confirm that for me.


  • 10
    Evan_Yu123  commented on Jan. 6, 2018, 5:39 p.m.

    If you tell me that this is the April Fool's day contest, I would believe you...


    • 3
      P234rex  commented on Jan. 9, 2018, 9:29 p.m.

      Bro, have you seen GFSSOC'17


    • 7
      insignificant  commented on Jan. 6, 2018, 10:27 p.m. ← edited

      These problems will be very obscure, weird, and break the boundaries of your imaginative capabilities.

      Well we weren't kidding


      • 2
        Evan_Yu123  commented on Jan. 6, 2018, 10:56 p.m.

        My paradigm was shifted


  • 5
    BenjaminBLi  commented on Jan. 2, 2018, 12:48 a.m.

    Time for the reemergence of BenLi


    • 16
      Kirito  commented on Jan. 2, 2018, 4:15 a.m.

      Of course, it is forbidden to use two accounts to participate

      Did you read the rules?


  • 6
    Evan_Yu123  commented on Jan. 1, 2018, 2:28 p.m.

    Rated?


    • 13
      Ninjaclasher  commented on Jan. 1, 2018, 4:17 p.m.

      Unfortunately, this contest will not be rated (mostly because this is my first contest and I probably made an error somewhere). However, I hope you try the contest anyways!


      • 6
        Evan_Yu123  commented on Jan. 1, 2018, 8:41 p.m.

        thx, looks fun, definitely will