NOTE: Our website has been down several times during today due to being targetted by a massive denial of service attack. In case there are further disruptions, if you start luogu please keep all problems open in separate tabs (not used for submission), so you can work offline if necessary. For pre-college CHN students, please also bookmark this Baidu form, to be used as a backup submission mechanism if the site is down again.

Several hundreds oier were affected by whomever was attacking our site. We understand and share your frustration at this happening. We are working on migrating to a new hosting platform with more robust DDOS shielding than I was led to believe about the infrastructure provded by my university. We are also looking into the feasibility of adding another website later today to give another opportunity to code.

Again, if you have been affected by the recent outages, we share your frustration, and we appreciate your patience and understanding.

CashCollectFactory

Luogu's user