2017 North Central NA Regional Contest

#### Start

2017-10-28 08:05 AKDT

## 2017 North Central NA Regional Contest

#### End

2017-10-28 13:05 AKDT
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# Rules

Your rank in the contest depends primarily on how many problems you solve (column Slv. on the standings page) and in case of ties on the total time it took you to solve the problems (column Time on the standings page), and as a final tie-breaker on when you submit your last accepted solution.

You have solved a problem if you have submitted a program (before the end of the contest) that was accepted by the judging system. If contestant A has solved more problems than contestant B, then contestant A has a lower rank (places better) than contestant B. The winner is thus the contestant with rank one.

If two contestants have solved the same number of problems, then the one with the smaller total time has lower rank (places better). The total time is defined as the sum of the submission times of your accepted submissions (don't worry, there will be an example) and any penalty time for incorrect submissions. Only the submissions you have made to problems you solve contribute to your total time. Penalty time is computed as follows. You get 20 minutes of penalty time for each incorrect submission you make to a problem prior to solving it. Penalty is given for the judgements Wrong Answer, Run Time Error and Time Limit Exceeded (see possible judgements).

## Total time computation, an example

Say a contestant has

• two incorrect submissions to problem A before solving it 30 minutes into the contest
• three incorrect submissions to problem B, but never solves it
• one incorrect submission to problem C before solving it 45 minutes into the contest

The contestant has solved two problems. Since problem B was not solved, those incorrect submissions do not contribute to the total time. Problem A contributes 30 + 2*20 minutes to the total time, and problem C contributes 45 + 1*20 minutes. This gives us a total of 135 minutes. For the purpose of computing total time, the time of submission is rounded down to the nearest minute.

## Final accepted submission

The final tie breaker, in case two contestants solved the same number of problems and have the same total time, is the time of the last accepted submission. In other words, if A and B both solve 5 problems, and they both have total time 674, but A submitted her fifth accepted solution before B, then A gets a lower rank than B (that is, A places better than B).

## Penalty time exceptions

Two of the judgements that lead to rejection of your submission (see possible judgements) do NOT result in 20 minutes penalty time: Compile Error and Judge Error.