We will hold Luogu Round 240 on Luogu. This is a Div.1/Div.2 round sponsored by Hetao Education. English statement will be provided officially. You can click the button to change language.

- Contest URL:
- Start Time: 09.27 14:00(UTC+8)
- Duration: 240 minutes
- System: IOI
- Difficulty: similar to CF Div.1/2
- Staffs: chenhongrui, zdc123456, -1yks, wxzz, Tony2_CF
- Rated range:
- Div.1: Unlimited
- Div.2: <=2000 Rating on Luogu
- Score distribution: 100-100-100-100 for each div
We are looking forward to your participation!
- A tutorial on using Luogu (Please note that
#pragma GCC optimizeis temporarily banned for some reason on Luogu.) - A brief introduction to Chinese NOI








Welcome to have fun!
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The english translation option is hopeless,i can't understand anything.
Why are there so many bugs?
I think this is be the worst Luogu round I have ever taken in. There are really many errors in the problems that I cannot understand. The problems are really ambiguous and hard to understand. In Div.2, Problem A, the figure can be rotated, but it didn't tell us at first. Problem B is even worse. It's completely wrong until the writers CHANGED the problem setting. What a mess! In Problem C and D, there are also some bugs. I had a unexpected horrible experience taking part in this competition.
Why not add English version into the site?
F is an easy version of 936E.
Welconm to luogu(洛谷)