QOJ.ac

QOJ

#	用户名	格言	Problemset Rating
1	Qingyu	曲終之時你是否便會回應我的心音	9.41
2	Crysfly	加训	8.40
3	hos_lyric	$$\left[\frac{x^n}{n!} q^{K-1}\right] \frac{(\mathrm{e}^{rx} - 1) (q + r + \mathrm{e}^{rx} + q \mathrm{e}^{rx} - r \mathrm{e}^{rx} + 1)}{(q + 1) (r - \mathrm{e}^{2rx} + r \mathrm{e}^{2rx} + 1)}$$	8.19
4	hydd	Qingyu txdy $\\$ If my armor breaks, I'll fuse it back together	8.17
5	Qiuly	fendou	7.95
6	flower		7.59
7	ucup-team1198		7.56
8	ucup-team1878		7.50
9	ucup-team087		7.48
10	zhouhuanyi		7.30
11	chenxinyang2006		7.17
12	dXqwq	To the cosmic	7.15
13	maspy	Universal Cup Upsol部	7.13
14	ucup-team2335		7.10
15	ucup-team1209	我不是可爱小青鱼	7.09
16	larryzhong		7.06
17	hyforces	永远不够	6.98
18	ucup-team987		6.87
19	ucup-team266		6.86
20	ucup-team1191		6.85
21	ucup-team1126		6.84
22	zhaohaikun		6.84
23	grass8cow		6.81
24	ucup-team1005	大家好，我是 C++ 高手，今天来点大家想看的东西。$$ \begin{aligned} &\texttt{sort(Ring.begin(), Ring.end());} \\ &\texttt{sort(Chain.begin(), Chain.begin(), [](int x, int y) \{return x > y;\});} \end{aligned}$$	6.77
25	AFewSuns	$\displaystyle\sum_{n \geq 0}{(x+y)^n\frac{u^n}{n!}}=\sum_{k \geq 0}\frac{x}{x-kz}(x-kz)^k\frac{u^k}{k!}\sum_{l \geq 0}\frac{(y+kz)^l}{l!}u^l$	6.74
26	ExplodingKonjac		6.70
27	ucup-team130		6.69
28	tricyzhkx		6.60
29	Scintilla		6.59
30	ucup-team173		6.59
31	perspective	$$\sqrt{\pi n} \lesssim \mathbb E[\mathrm{depth}] \leq O((n\log n)^{1/2})$$	6.56
31	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	6.56
33	Lynkcat		6.46
34	ucup-team150		6.45
35	Lenstar	orz Qingyu	6.45
36	moriko		6.45
37	Minneapolis	卷王别卷了	6.45
38	little_sun		6.39
39	alpha1022	$$\frac{1}{n_1!n_2!}(1-y)^{n_1+n_2+2} \left(\sum_{j\ge 0} y^j(t+j)^{n_1} \right) \left(\sum_{j\ge 0} y^j((j+1)-t)^{n_2} \right)$$	6.39
40	ucup-team1376	CJOIers?	6.39
41	ucup-team253		6.36
42	ucup-team052		6.33
43	sdoi	$$P_{a_i}(x) = [t^{a_i}]\frac{1}{1-xF(t)}$$	6.33
44	repoman	$$\prod_{i=0}^{n-1} (1+q^iz) = \sum_{i=0}^n q^{i(i-1)/2}\binom ni_q z^i$$	6.32
45	275307894a		6.31
46	Naitoah	一只菜喵捏~	6.31
47	ucup-team159		6.28
48	conzloi		6.26
49	yangjiuzhi	@_silhouette_	6.25
50	hutality	$$[x^n](1-x)^{-\frac{1}{2}} \exp\left(\frac{x(1+x)}{2-2x}\right)\frac{\left(\frac{2-x}{2-2x}\right)^k}{k!}\cdot\,_0 F _1 \left(;k+1;x\left(\frac{2-x}{2-2x}\right)^2\right)$$	6.21
51	oscaryang		6.21
52	wlxhkk		6.15
53	testusera		6.11
54	Sorting	ㅗ오ㅗ	6.10
55	zombie462	<b>123</b>	6.09
56	ucup-team267	哈姆。	6.08
57	qzez		6.07
58	ucup-team456		6.05
59	ucup-team118		5.93
60	ckiseki	卷不动了	5.93
61	ucup-team180		5.89
62	lmeowdn		5.88
63	ucup-team2016		5.84
64	Baltinic	$$\rho \left ( \frac{\partial \mathbf{v}}{\partial t} + \mathbf{v} \cdot \nabla \mathbf{v} \right) = - \nabla p + \nabla \cdot \mathbf{T} + \mathbf{f}$$	5.78
65	Z_301		5.76
66	NATURAL6		5.76
67	huredomirikayatuda		5.75
68	ucup-team123		5.74
69	yh		5.73
70	feecle6418	gyh ak ioi	5.69
71	ucup-team1293		5.68
72	ucup-team864		5.67
73	ezteam1		5.67
74	bachbeo2007		5.64
75	_map_	map<problem_statement,vector<pair<oj,problem_id>>>	5.62
76	qwq	$\displaystyle \sum_{i=1}^n [i,i+1,\cdots, i+k] \pmod{10^9+7}$	5.60
77	eyiigjkn		5.57
78	james1BadCreeper	他明白他明白我给不起	5.56
79	Graphcity		5.55
80	ucup-team197	I'm so spicy I'm so spicy	5.54
81	Register		5.52
82	ucup-team199		5.51
83	ucup-team191		5.50
84	ucup-team1055		5.47
85	ucup-team254		5.46
86	JackF	______是不是贺子	5.41
87	ucup-team3057		5.39
88	ucup-team1617		5.39
89	ucup-team1447	没队要	5.38
90	CharlieVinnie	You fly away so proudly, away from my summer. Slient words of praying, all these years repeating	5.37
91	ucup-team244		5.37
92	ucup-team006		5.37
93	Kevin5307	$$ \frac{1}{1-x}\sum_{k=1}^\infty\frac{x^k}{1-\frac{x-x^{k+1}}{1-x}} $$	5.37
94	ucup-team1134		5.37
94	ucup-team122		5.37
94	ucup-team133		5.37
97	JohnAlfnov	Qingyu Kedavra !	5.37
98	ucup-team1303	不姓姚不传谣	5.37
99	awumia	楼上几位的格言实在是狂的没边了	5.36
100	jeffqi		5.33