Summer Contest #13

Lucky number 13! And a problem set that zhouzixiang2004 hasn't seen yet!

As with all previous summer contests, this one will be unrated.

Note that due to grading constraints, problem 4 is only solvable in C/++.

The score distribution will be: 100-100-100-100-100-100.

  • Contest duration: 5 hours.
  • Number of problems: 6, full feedback.
  • This contest will be unrated.
  • Scoreboard will be hidden.
  • Contest will run on pre-2016 IOI format. This means that your score is the sum of your highest scoring submission to each problem. No ties will be broken.
  • Number of submissions allowed per problem: 50.


  • 1
    dangquan6b  commented on Aug. 21, 2020, 5:23 a.m.

    Hóng :V:V