# QOJ

1xiaowuc1you're a half a world away, but in my mind I whisper every single word you say1296
2hos_lyric$$\left[\frac{x^n}{n!} q^{K-1}\right] \frac{(\mathrm{e}^{rx} - 1) (q + r + \mathrm{e}^{rx} + q \mathrm{e}^{rx} - r \mathrm{e}^{rx} + 1)}{(q + 1) (r - \mathrm{e}^{2rx} + r \mathrm{e}^{2rx} + 1)}$$1119
3larryzhong983
4ucup-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}879
5PetroTarnavskyiWhy haven't you registered at https://algotester.com/en yet? 🤨776
6zhouhuanyi628
7Crysfly我还能为你驻足到何时617
8ckiseki卷不动了609
9PhantomThreshold582
10ucup-team2335563
11dXqwqTo the cosmic524
12lmq26052003521
13grass8cow505
14SolitaryDream462
15ucup-team1198460
16ucup-team087450
17ucup-team004443
18ucup-team1209我不是可爱小青鱼442
19LoverInTime089年的树剖401
19ucup-team2880401
21qiuzx383
22Qiulyfendou381
23ucup-team1878379
24flower378
25275307894a371
26maspyUniversal Cup Upsol部366
27ucup-team052360
28hyforces永远不够350
29MoRanSky无论过去 不问将来333
30ucup-team1004方队akioi332
30ucup-team864332
32Kevin5307$$\frac{1}{1-x}\sum_{k=1}^\infty\frac{x^k}{1-\frac{x-x^{k+1}}{1-x}}$$327
33ucup-team987323
34ucup-team191322
35lmeowdn311
36hyddQingyu txdy $\\$ If my armor breaks, I'll fuse it back together310
36waifuSenpai310
38ucup-team159308
39Lynkcat299
40bachbeo2007297
40Sortingㅗ오ㅗ 297
42ucup-team1134295
43ucup-team266290
45alpha1022$$\frac{1}{n_1!n_2!}(1-y)^{n_1+n_2+2} \left(\sum_{j\ge 0} y^j(t+j)^{n_1} \right) \left(\sum_{j\ge 0} y^j((j+1)-t)^{n_2} \right)$$286
46ucup-team133284
47znstz277
48ucup-team253272
49AFewSuns$\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
50ezteam1266
50ucup-team130266
52ucup-team1447没队要263
53ucup-team138262
54zhaohaikun252
55ucup-team025251
55ucup-team112251
57tricyzhkx249
58ucup-team1525248
59ucup-team2307247
60ucup-team267哈姆。242
61iee239
62sdoi$$P_{a_i}(x) = [t^{a_i}]\frac{1}{1-xF(t)}$$237
63He_Ren236
63KKT89236
63ucup-team134236
66ucup-team180234
67ucup-team216233
68ucup-team122229
69zhoukangyang227
708BQube222
71chenshi218
71karuna218
73ucup-team244217
73ucup-team3215217
75repoman$$\prod_{i=0}^{n-1} (1+q^iz) = \sum_{i=0}^n q^{i(i-1)/2}\binom ni_q z^i$$215
75ucup-team870215
75ushg8877215
78ship2077214
78ucup-team1293214
80ucup-team228212
80ucup-team311212
82do_while_true204
83new_dawn_2203
83ucup-team045203
85JohnAlfnovQingyu Kedavra ! 202
85ucup-team123202
87kevinyang201
88qwq$\displaystyle \sum_{i=1}^n [i,i+1,\cdots, i+k] \pmod{10^9+7}$199
88ucup-team1126199
90ucup-team029197
91ucup-team1191196
92Wu_Ren194
93PlentyOfPenalty高亮的是我们，我们是青鱼家军！191
94_map_map<problem_statement,vector<pair<oj,problem_id>>>190
95ucup-team1123189
96ucup-team026188
96ucup-team1055188
98DitaMirika184
98myee与其诺诺以顺，不若谔谔以昌184
100Max_s_xaM183
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