GlobeX Cup '18 Senior

There are two different divisions featuring problem difficulties from elementary to advanced. To determine which division suits you the best, try the junior sample and the senior sample.


Please fill out this form in order to register for the contest and be eligible for prizes.


  • 1st Place Junior & Senior: Wolfram|One + Wolfram|Alpha Pro
  • 2nd Place Junior & Senior: Any JetBrains Product
  • 3rd Place Junior & Senior: Free Admission to TOHacks


For any inquiries, please email [email protected] or message our Instagram page GlobeXCup.



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

This contest will consist of 5 problems, the difficulty of which may range from anywhere CCC Junior and 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.

The contest will use a pretest/systest format for problems 3-5. For more information about the pretest/systest format, see this page.

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

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


Problem Points AC Rate Users Editorials
GlobeX Cup '18 S1 - Code Copiers 5p 53.6% 105 Editorial
GlobeX Cup '18 S2 - Test Scores 7p 20.4% 92 Editorial
GlobeX Cup '18 S3 - Playing With Bits 10p 14.7% 34 Editorial
GlobeX Cup '18 S4 - Reversed Dijkstra's 10p 10.7% 39 Editorial
GlobeX Cup '18 S5 - Math Bash (Contest Version) 15p 33.9% 20


  • 0
    kevin51jiang  commented on Jan. 8, 2019, 12:28 p.m.

    Where is the link to P5?

    • 4
      Rimuru  commented on Jan. 8, 2019, 2:01 p.m.

      While P5 was used as a contest problem, Ninjaclasher felt as if the difficulty was too easy, and plans to release the P5 problem with harder constraints. We (the GlobeX team) apologize for the inconvenience.

      • 6
        wleung_bvg  commented on Jan. 8, 2019, 6:40 p.m.

        Does this harder version involve a 10 dimensional gird?

  • 3
    NeverDrinkAndDerive1  commented on Dec. 5, 2018, 3:53 p.m.

    omg this is cooooooooooool!!!!! yas

  • 0
    R3D4  commented on Dec. 5, 2018, 2:01 p.m.


    • 2
      Ninjaclasher  commented on Dec. 5, 2018, 4:19 p.m.

      Unfortunately, this contest (and the junior division) will not be rated.

      • 2
        R3D4  commented on Dec. 6, 2018, 3:24 p.m.