Hello, Codeforces!
We're going to host a new contest at csacademy.com. Round #49 will take place on Wednesday, 20/September/2017 15:00 (UTC). This contest will be a Div1 + Div2, with 7 tasks of varying difficulty that need to be solved in 2 hours.
We are glad to have zscoder as a problem author.
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:
- First place: 100$
- 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 [email protected]
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When can I receive my prizes from #43 :p
Sorry, we had that somehow marked as solved, and you didn't write to us after the round. :) I've sent you an email, and will send you the prize when you answer with your preferred payment method.
Reminder : Contest starts in 3 hours.
Hi. I just finished the editorial for problem Amusement park (link) (editorial link) I really enjoy Expected value problems, so I wanted the editorial to be as good as possible to understand. If you have any feedback, it's greatly appreciated since this is one of my first editorials.
Also, if your solved the problem but your solution requires infinite sums or crazy math, I really suggest to take a look at the editorial for a easier approach :)