QOJ - QOJ.ac

Announcements
Upgrade of QOJ Judging Server^new	by Qingyu	2025-06-02 15:48:38
若还想与我相见	by Qingyu + ucup-team001	2025-05-12 16:11:05
The 2nd Universal Cup Finals Analysis（草稿）	by Qingyu	2025-03-03 16:39:06
QOJ Change logs (2025 Mar)	by Qingyu	2023-01-06 20:27:29
Judging environment of QOJ (2025 updated)	by Qingyu	2021-03-23 20:32:30


All the Announcements……

#	Username	Motto	Solved
1	hos_lyric	$$\left[\frac{x^n}{n!} q^{K-1}\right] \frac{(\mathrm{e}^{rx} - 1) (q + r + \mathrm{e}^{rx} + q \mathrm{e}^{rx} - r \mathrm{e}^{rx} + 1)}{(q + 1) (r - \mathrm{e}^{2rx} + r \mathrm{e}^{2rx} + 1)}$$	1716
2	xiaowuc1	you're a half a world away, but in my mind I whisper every single word you say	1582
3	ucup-team1005	Natsuhi Kage: $\color{SpringGreen}{■}□□□□\color{DarkGreen}{■}\color{ForestGreen}{■}~1$ day streak; Last AC 06-04 10:45:26 (3 hours ago)	1129
4	qiuzx		1121
5	maspy	Universal Cup Upsol部	995
6	ucup-team4744		981
7	larryzhong		980
8	ucup-team004		941
9	Crysfly	UOJ Round ~~缺投~~ 已倒闭 \|\| www.cnblogs.com/Rainbowsjy	886
10	ucup-team087		842

#	Username	Motto	Authored Problems
1	TsReaper		120
2	quailty		108
3	bulijiojiodibuliduo		87
3	clrs97		87
5	xiaowuc1	you're a half a world away, but in my mind I whisper every single word you say	60
6	ftiasch		47
7	zimpha		45
8	Elegia	$R(T_1\oplus T_2) < R(T_1) + R(T_2)$	43
8	Qingyu	>_<	43
10	tangjz		39

View all