Hi Guys, I think the 10 minutes penalty for educational and div3 rounds is somewhat higher. In normal rounds the penalty for wrong submission is 50 points. If we take middle — high scoring problems such as C, D or E, then the amount of time it takes for the points to reduce by 50 is much less than 10 minutes. For eg, on most cases, the penalty for C problem is about 8 minutes, for D, its 6 minutes and for E its 5 minutes and for F its about 4 minutes. Hence if someone makes wrong submission and since the penalty is constant, it can be considered as making wrong submission on the highest scoring problem. So I think the penalty for wrong submission can be about 5 minutes as 1. It is the amount used in atcoder and 2. Just because when someone made a careless mistake or some error, they wont be penalised much than someone who did now know how to implement fast or who found the idea later and 3. Considering people (who are in rated bucket) rarely solve F, it does not make much difference switching penalty from 5 to 4 minutes. What do you guys think ? Pls share your thoughts.

Update : Including div3 rounds too.