### csacademy's blog

By csacademy, history, 4 weeks ago, ,

Hello, Codeforces!

We're going to host a new contest at csacademy.com. Round #78 will take place on Wednesday, 25 April 15:05 (UTC). This contest will be a Div1 + Div2, with 7 tasks of varying difficulty that need to be solved in 2 hours.

Some of the problems will be based on a contest from Romanian Olympiad IOI selection camp.

#### Facebook event

We recently created a new Facebook event. If you choose "Interested" here, you will be notified before each round we organise from now on.

#### Contest format:

• You will have to solve 7 tasks in 2 hours.
• There will be full feedback throughout the entire contest.
• Tasks will not have partial scoring, so you need to pass all test cases for a solution to count (ACM-ICPC-style).
• Tasks will have dynamic scores. According to the number of users that solve a problem the score will vary between 100 and 1000.
• Besides the score, each user will also get a penalty that is going to be used as a tie breaker.

#### Prizes

We're going to award the following prizes:

1. First place: 100$2. Second place: 50$

#### About the penalty system:

• Computed using the following formula: the minute of the last accepted solution + the penalty for each solved task. The penalty for a solved task is equal to log2 (no_of_submissions) * 5.
• Solutions that don't compile or don't pass the example test cases are ignored.
• Once you solve a task you can still resubmit. All the following solutions will be ignored for both the score and the penalty.

If you find any bugs please email us at contact@csacademy.com

Don't forget to like us on Facebook, VK and follow us on Twitter.

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 » 4 weeks ago, # |   +10 Just a reminder: The contest will start in 20 minutes
 » 4 weeks ago, # |   +8 Which of these tasks were on Romanian Selection camp, and if there were other tasks would you mind sharing them?
•  » » 4 weeks ago, # ^ |   +3 The last 3 were exactly the second selection we had. We also had one more selection contest (the first one), but besides the fact that there is no translated version of the tasks, I believe it's likely that the guys from csa would want to use them in another round as well, so I'll let them decide whether to disclose them now or later.
•  » » » 3 weeks ago, # ^ |   0 They can probably use only one problem from the first selection. The others are options for the next GP of Romania (or something similar), for when the time comes.