# QOJ

#用户名格言通过数
1xiaowuc1you're a half a world away, but in my mind I whisper every single word you say1305
2hos_lyric$$\left[\frac{x^n}{n!} q^{K-1}\right] \frac{(\mathrm{e}^{rx} - 1) (q + r + \mathrm{e}^{rx} + q \mathrm{e}^{rx} - r \mathrm{e}^{rx} + 1)}{(q + 1) (r - \mathrm{e}^{2rx} + r \mathrm{e}^{2rx} + 1)}$$1133
3ucup-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}1034
4larryzhong983
5PetroTarnavskyiWhy haven't you registered at https://algotester.com/en yet? 🤨798
6Crysfly我还能为你驻足到何时670
7PhantomThreshold668
8zhouhuanyi649
9ckiseki卷不动了608
10ucup-team2335563
11dXqwqTo the cosmic538
12qiuzx534
13lmq26052003531
14grass8cow522
15ucup-team1198516
16ucup-team004510
17ucup-team087490
18SolitaryDream462
19ucup-team052453
20ucup-team1209我不是可爱小青鱼442
21ucup-team2880430
22ucup-team1878418
23LoverInTime089年的树剖401
24maspyUniversal Cup Upsol部390
25275307894a384
26Qiulyfendou382
27flower377
28ucup-team1004方队akioi371
29hyforces永远不够366
30ucup-team987355
31bachbeo2007349
32ucup-team159346
33Kevin5307$$\frac{1}{1-x}\sum_{k=1}^\infty\frac{x^k}{1-\frac{x-x^{k+1}}{1-x}}$$344
34ucup-team191343
35ucup-team864340
36MoRanSky无论过去 不问将来335
37ucup-team1134326
38ucup-team133313
39lmeowdn311
40hyddQingyu txdy $\\$ If my armor breaks, I'll fuse it back together310
40waifuSenpai310
42ship2077307
43ucup-team130301
44Lynkcat300
45Sortingㅗ오ㅗ 299
45ucup-team253299
47ucup-team266290
49alpha1022$$\frac{1}{n_1!n_2!}(1-y)^{n_1+n_2+2} \left(\sum_{j\ge 0} y^j(t+j)^{n_1} \right) \left(\sum_{j\ge 0} y^j((j+1)-t)^{n_2} \right)$$286
50ucup-team138283
51ucup-team112282
52znstz278
53ucup-team025274
54AFewSuns$\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
55ezteam1267
56ucup-team1525266
57ucup-team1447没队要263
58ucup-team180257
59zhaohaikun256
60tricyzhkx250
61ucup-team216248
61ucup-team311248
63ucup-team2307247
64KKT89245
65ucup-team267哈姆。242
65zhoukangyang242
67ucup-team244241
68iee239
69He_Ren237
69sdoi$$P_{a_i}(x) = [t^{a_i}]\frac{1}{1-xF(t)}$$237
71ucup-team122236
71ucup-team134236
738BQube222
74chenshi221
74karuna221
76ucup-team3215217
77repoman$$\prod_{i=0}^{n-1} (1+q^iz) = \sum_{i=0}^n q^{i(i-1)/2}\binom ni_q z^i$$215
77ucup-team870215
77ushg8877215
80ucup-team1293214
81ucup-team1123212
81ucup-team228212
83JohnAlfnovQingyu Kedavra ! 210
84do_while_true204
85new_dawn_2203
85ucup-team045203
87ucup-team123202
88kevinyang201
88ucup-team1002201
90qwq$\displaystyle \sum_{i=1}^n [i,i+1,\cdots, i+k] \pmod{10^9+7}$199
90ucup-team1126199
92chenxinyang2006198
93Max_s_xaM197
93ucup-team029197
95ucup-team1191196
96ucup-team2818194
96Wu_Ren194
98ucup-team635193
99rotcar08192
100_map_map<problem_statement,vector<pair<oj,problem_id>>>191
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