QOJ.ac

QOJ

#	Username	Motto	Solved
/	Qingyu	永眠	6892
1	larryzhong		982
2	hos_lyric	$$\left[\frac{x^n}{n!} q^{K-1}\right] \frac{(\mathrm{e}^{rx} - 1) (q + r + \mathrm{e}^{rx} + q \mathrm{e}^{rx} - r \mathrm{e}^{rx} + 1)}{(q + 1) (r - \mathrm{e}^{2rx} + r \mathrm{e}^{2rx} + 1)}$$	644
3	xiaowuc1	you're a half a world away, but in my mind I whisper every single word you say	527
4	Crysfly	sunflower-addicted	426
5	zhouhuanyi		420
6	PetroTarnavskyi		382
7	flower	qingyu txdy!	365
8	PhantomThreshold		336
9	ckiseki		324
10	hydd	Qingyu txdy $\\$ $\text{If my armor breaks, I'll fuse it back together}$	309
11	maspy		308
12	ucup-team004		298
13	SolitaryDream		288
14	ucup-team1209	qingyu cute	265
15	tricyzhkx		249
16	lmeowdn		238
16	sdoi	$$P_{a_i}(x) = [t^{a_i}]\frac{1}{1-xF(t)}$$	238
18	He_Ren		237
19	LoverInTime	089年的树剖	225
20	chenshi		218
21	Sorting	ㅗ오ㅗ	217
22	AFewSuns	$\displaystyle\sum_{n \geq 0}{(x+y)^n\frac{u^n}{n!}}=\sum_{k \geq 0}\frac{x}{x-kz}(x-kz)^k\frac{u^k}{k!}\sum_{l \geq 0}\frac{(y+kz)^l}{l!}u^l$	215
23	repoman	$$\prod_{i=0}^{n-1} (1+q^iz) = \sum_{i=0}^n q^{i(i-1)/2}\binom ni_q z^i$$	209
24	lmq26052003		202
25	waifuSenpai		199
26	qwq	$\displaystyle \sum_{i=1}^n [i,i+1,\cdots, i+k] \pmod{10^9+7}$	198
27	275307894a		194
28	Wu_Ren		193
29	ucup-team870		184
/	alpha1022	$$\frac{1}{n_1!n_2!}(1-y)^{n_1+n_2+2} \left(\sum_{j\ge 0} y^j(t+j)^{n_1} \right) \left(\sum_{j\ge 0} y^j((j+1)-t)^{n_2} \right)$$	183
30	new_dawn_2		178
31	eyiigjkn		171
31	myee	与其诺诺以顺，不若谔谔以昌	171
33	feecle6418	gyh ak ioi	170
34	8BQube		167
34	KKT89		167
36	ucup-team1198		166
36	znstz		166
38	zhoukangyang		165
/	Qiuly	fendou	161
39	Sa3tElSefr	leh	157
40	ucup-team087		156
40	zhaohaikun		156
42	ucup-team026		155
43	Lenstar	orz Qingyu	154
43	ucup-team1005		154
45	Appleblue17		152
46	qzez		150
47	zhangboju	短暂登上首页并即将掉下来	149
48	BeyondHeaven		143
49	hutality	$$[x^n](1-x)^{-\frac{1}{2}} \exp\left(\frac{x(1+x)}{2-2x}\right)\frac{\left(\frac{2-x}{2-2x}\right)^k}{k!}\cdot\,_0 F _1 \left(;k+1;x\left(\frac{2-x}{2-2x}\right)^2\right)$$	138
50	LH	$$\|X/G\| = \frac{1}{\|G\|}\sum_{g \in G}\|X^g\|$$	137
51	Minneapolis	卷王别卷了	136
52	triplem5ds		135
53	Beevo		133
53	ucup-team1878		133
55	YaoBIG		131
56	ucup-team1004	方队akioi	130
56	ucup-team191		130
58	yzhang	如果结果不如你所愿，就在尘埃落定前奋力一搏	129
59	wlxhkk		126
60	ucup-team864		125
61	JohnAlfnov	Qingyu Kedavra !	124
62	99pts_WA		123
62	ucup-team138		123
62	zombie462	<b>123</b>	123
65	ucup-team991		122
66	neko_nyaa		121
66	not_so_organic	今晚九点，QYC 唱歌。	121
68	ucup-team1447	没队要	120
69	Forever_Young		118
69	whatever		118
71	ucup-team987		116
72	bulijiojiodibuliduo		115
72	SoyTony	真実はいつもひとつ	115
72	ybw051114		115
75	DianasDog	关注嘉然，顿顿解馋	113
75	DitaMirika		113
75	ucup-team134		113
75	ucup-team266		113
79	GMBox	I will IOI	112
80	ucup-team456		111
81	ucup-team029		110
81	xiaoyaowudi		110
83	ucup-team133		109
84	houzhiyuan		108
84	hyforces	希望我每天可以变更强一点儿	108
86	CharlieVinnie	You fly away so proudly, away from my summer. Slient words of praying, all these years repeating	107
86	rgnerdplayer		107
86	ucup-team607		107
89	mendicillin2		106
89	ucup-team1293		106
89	UrgantTeam		106
92	smax		102
92	ucup-team228		102
94	propensity	The binary Gray code is fun, For in it strange things can be done. Fifteen, as you know, Is one, oh, oh, oh, And ten is one, one, one and one	101
94	ucup-team159		101
96	sinbad		100
96	SorahISA		100