Hello, Codeforces!
We're going to host a new contest at csacademy.com. Round #58 will take place on Wednesday, 22/November/2017 15:05 (UTC). This contest will be a Div1 + Div2, with 7 tasks of varying difficulty that need to be solved in 2 hours.
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 contact@csacademy.com
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Just a reminder, the contest starts in 5 hours.
When your D gets accepted 1 minute after contest and also was getting segmentation fault during contest because at one place I took array size as n instead of (1<<n) :(
Very well, CSAcademy, today's F problem was easy version of problem 427F.
Does anyone know what the hidden
solution is, as mentioned in the editorial of this problem E?