Welcome to the most frantically-anticipated sequel of the year: the April 20 Contest, 2016.

The problemsetters are bobhob314, gah111, msa789 and moladan123.

This contest will be unrated.


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

The contest consists of 6 questions with post-contest point values in the range [4, 20]. You will have 3 hours to complete the contest. As soon as you click Join Contest, your personal timer will start counting down, and you will be able to participate until 3 hours after you started, or until the hard deadline (11PM EST on April 24th), 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 check how much better d is doing than everyone else on the rankings.

The following is worth noting: We have listed below some advice as well as contest strategies:

  • The problems are not necessarily listed in order of increasing difficulty. Make sure you read all of the problems during the contest.
  • 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.
  • 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.

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.

Bonne chance!


Problems

Problem Points AC Rate Users
Mary, Jane and Invitations 4 25.7% 33
Oh My! 10 15.2% 11
Lu Han and Birthday 10p 18.1% 31
Bob's Primes 15 27.2% 36
Last Trip to Surface 20 11.8% 9
Hinata and Volleyball Graph 7p 13.1% 14

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