QOJ.ac

QOJ

#	Nom d'utilisateur	Motto	Résolu
1	xiaowuc1	you're a half a world away, but in my mind I whisper every single word you say	1307
2	hos_lyric	$$\left[\frac{x^n}{n!} q^{K-1}\right] \frac{(\mathrm{e}^{rx} - 1) (q + r + \mathrm{e}^{rx} + q \mathrm{e}^{rx} - r \mathrm{e}^{rx} + 1)}{(q + 1) (r - \mathrm{e}^{2rx} + r \mathrm{e}^{2rx} + 1)}$$	1160
3	ucup-team1005	沉舟侧畔千帆过	1035
4	larryzhong		983
5	PetroTarnavskyi	Why haven't you registered at https://algotester.com/en yet? 🤨	798
6	Crysfly	我还能为你驻足到何时	672
7	PhantomThreshold		669
8	zhouhuanyi		664
9	ckiseki	卷不动了	608
10	ucup-team2335		563
11	dXqwq	To the cosmic	547
12	qiuzx		546
13	ucup-team004		532
14	lmq26052003		531
15	grass8cow		521
16	ucup-team1198		515
17	ucup-team087		490
18	SolitaryDream		462
19	ucup-team052		458
20	ucup-team1209	我不是可爱小青鱼	442
21	ucup-team2880		431
22	ucup-team1878		418
23	maspy	Universal Cup Upsol部	405
24	LoverInTime	089年的树剖	401
25	275307894a		394
26	flower		377
27	ucup-team1004	方队akioi	373
28	hyforces	永远不够	366
29	ucup-team987		355
30	Kevin5307	$$ \frac{1}{1-x}\sum_{k=1}^\infty\frac{x^k}{1-\frac{x-x^{k+1}}{1-x}} $$	353
31	bachbeo2007		349
31	ship2077		349
33	ucup-team159		346
34	ucup-team191		343
35	ucup-team864		340
36	MoRanSky	无论过去不问将来	337
37	ucup-team1134		326
38	lmeowdn		316
38	waifuSenpai		316
40	ucup-team133		314
41	hydd	Qingyu txdy $\\$ If my armor breaks, I'll fuse it back together	310
42	ucup-team130		301
43	Lynkcat		299
43	Sorting	ㅗ오ㅗ	299
43	ucup-team253		299
46	ucup-team266		290
47	james1BadCreeper	他明白他明白我给不起	287
48	alpha1022	$$\frac{1}{n_1!n_2!}(1-y)^{n_1+n_2+2} \left(\sum_{j\ge 0} y^j(t+j)^{n_1} \right) \left(\sum_{j\ge 0} y^j((j+1)-t)^{n_2} \right)$$	286
49	ucup-team138		283
50	ucup-team112		282
51	znstz		278
52	ucup-team025		274
53	AFewSuns	$\displaystyle\sum_{n \geq 0}{(x+y)^n\frac{u^n}{n!}}=\sum_{k \geq 0}\frac{x}{x-kz}(x-kz)^k\frac{u^k}{k!}\sum_{l \geq 0}\frac{(y+kz)^l}{l!}u^l$	269
54	ezteam1		267
55	ucup-team1525		266
56	ucup-team1447	没队要	262
57	ucup-team180		257
58	zhaohaikun		256
59	tricyzhkx		250
60	ucup-team216		248
60	ucup-team311		248
62	ucup-team2307		247
63	KKT89		245
64	ucup-team267	哈姆。	242
64	zhoukangyang		242
66	ucup-team244		241
67	iee		238
68	He_Ren		237
68	sdoi	$$P_{a_i}(x) = [t^{a_i}]\frac{1}{1-xF(t)}$$	237
70	ucup-team122		236
71	ucup-team134		235
72	8BQube		222
73	chenshi		221
73	karuna		221
75	ucup-team3215		217
76	repoman	$$\prod_{i=0}^{n-1} (1+q^iz) = \sum_{i=0}^n q^{i(i-1)/2}\binom ni_q z^i$$	215
76	ucup-team870		215
76	ushg8877		215
79	ucup-team1293		214
80	ucup-team1123		212
80	ucup-team228		212
82	JohnAlfnov	Qingyu Kedavra !	210
83	ucup-team2818		208
84	chenxinyang2006		206
85	do_while_true		204
86	new_dawn_2		203
86	ucup-team045		203
88	kevinyang		201
88	ucup-team1002		201
88	ucup-team123		201
91	DaiRuiChen007		199
91	Max_s_xaM		199
91	qwq	$\displaystyle \sum_{i=1}^n [i,i+1,\cdots, i+k] \pmod{10^9+7}$	199
91	ucup-team1126		199
95	ucup-team029		197
96	ucup-team1191		196
97	Wu_Ren		194
98	rotcar08		193
98	ucup-team635		193
100	PlentyOfPenalty	高亮的是我们，我们是青鱼家军！	192