https://wiki.cvbbacm.com/ 2026-04-30T03:40:32+0800 https://wiki.cvbbacm.com/ https://wiki.cvbbacm.com/lib/exe/fetch.php?media=favicon.ico text/html 2020-07-21T18:10:24+0800 Anonymous (anonymous@undisclosed.example.com) https://wiki.cvbbacm.com/doku.php?id=2020-2021:teams:mian:nowcoder_training:2020_multi-university_training_contest_3&rev=1595326224&do=diff 2020牛客暑期多校训练营（第三场） Results Summary * Solved 7 out of 12 problems * Rank 96/1178 in official records * Solved 8 out of 12 afterwards Virtual Participation Member Distribution Solved A B C D E $\gcd(a, b)>1$$\gcd(a,b)=1$$b$ text/html 2020-07-23T23:31:36+0800 Anonymous (anonymous@undisclosed.example.com) https://wiki.cvbbacm.com/doku.php?id=2020-2021:teams:mian:nowcoder_training:2020_multi-university_training_contest_4&rev=1595518296&do=diff 2020牛客暑期多校训练营（第四场） Results Summary * Solved 5 out of 10 problems * Rank 28/1159 in official records * Solved 5 out of 10 afterwards Virtual Participation Member Distribution Solved A B C D E $O(\log n)$$ans=\sum_{\forall i\in SAM}lenth[i]-lenth[parent[i]]$ text/html 2020-08-09T14:49:55+0800 Anonymous (anonymous@undisclosed.example.com) https://wiki.cvbbacm.com/doku.php?id=2020-2021:teams:mian:nowcoder_training:2020_multi-university_training_contest_5&rev=1596955795&do=diff 2020牛客暑期多校训练营（第五场） Results Summary * Solved 5 out of 11 problems * Rank 71/1145 in official records * Solved 5 out of 11 afterwards Member Distribution Solved A B C D E F G H I text/html 2020-07-31T19:55:36+0800 Anonymous (anonymous@undisclosed.example.com) https://wiki.cvbbacm.com/doku.php?id=2020-2021:teams:mian:nowcoder_training:2020_multi-university_training_contest_6&rev=1596196536&do=diff 2020牛客暑期多校训练营（第六场） Results Summary * Solved 5 out of 11 problems * Rank 95 / 1120 in official records * Solved 8 out of 11 afterwards Member Distribution Solved A B C D E F G H I $f(n)$$n!$$i$$1e9 + 7$$f(4) = 34/3$$f(4) = 34/3$$H()$$f()$$\mathtt{LegacyRandomAccessIterator}$$ \log $$ O(n) $ text/html 2020-08-04T19:18:35+0800 Anonymous (anonymous@undisclosed.example.com) https://wiki.cvbbacm.com/doku.php?id=2020-2021:teams:mian:nowcoder_training:2020_multi-university_training_contest_7&rev=1596539915&do=diff 2020牛客暑期多校训练营（第七场） Results Summary * Solved 4 out of 10 problems * Rank 56 / 1140 in official records * Solved 6 out of 10 afterwards Member Distribution Solved A B C D E F G H I $n=1$$n=24$$$\sum\limits_{k=1}^{n}\left(2\lfloor\cfrac{n}{k}\rfloor+\left[n\bmod{k}\neq 0\right]\right)$$$\sum d_i^2$$C_{n-2}^i$${(n-1)}^{n-2-i}$$\sum d_i^2=C_{n-2}^i \times n \times {(n-1)}^{n-2-i} \times {(i+1)}^2$ text/html 2020-08-04T21:48:24+0800 Anonymous (anonymous@undisclosed.example.com) https://wiki.cvbbacm.com/doku.php?id=2020-2021:teams:mian:nowcoder_training:2020_multi-university_training_contest_8&rev=1596548904&do=diff 2020牛客暑期多校训练营（第八场） Results Summary * Solved 3 out of 11 problems * Rank 255 / 1033 in official records * Solved 4 out of 11 afterwards Member Distribution Solved A B C D E F G H I $\Theta(n^2)$$(i, j, k)$$\mathsf{set}$$\Theta(n^3)$$id := \left[encode(x)\;\;\mathtt{for}\;\;x\;\;\mathtt{in}\;\;input\right]$$has := \varnothing$$\mathtt{for}\;\;i\;\;\mathtt{from}\;\;1\;\;\mathtt{to}\;\;n$$\qquad\mathtt{for}\;\;j\;\;\mathtt{from}\;\;i+1\;\;\mathtt{to}\;\;n… text/html 2020-08-14T11:20:40+0800 Anonymous (anonymous@undisclosed.example.com) https://wiki.cvbbacm.com/doku.php?id=2020-2021:teams:mian:nowcoder_training:2020_multi-university_training_contest_9&rev=1597375240&do=diff 2020牛客暑期多校训练营（第九场） Results Summary * Solved 7 out of 12 problems * Rank 32/1041 in official records * Solved 8 out of 12 afterwards Member Distribution Solved A B C D E F G H I $x, y$$x = p_1^{u_1}p_2^{u_2}\dots p_n^{u_n}, y = p_1^{v_1}p_2^{v_2}\dots p_n^{v_n}$$$ \prod\limits_{i=a}^{b}\prod\limits_{j=c}^{d}\gcd(x^i,y^j)\\ =\prod\limits_{i=a}^{b}\prod\limits_{j=c}^{d}\gcd((p_1^{u_1}p_2^{u_2}\dots p_n^{u_n})^i,(p_1^{v_1}p_2^{v_2}\dots p_n^{v_n})^j)\\ =\… text/html 2020-08-12T15:43:38+0800 Anonymous (anonymous@undisclosed.example.com) https://wiki.cvbbacm.com/doku.php?id=2020-2021:teams:mian:nowcoder_training:2020_multi-university_training_contest_10&rev=1597218218&do=diff 2020牛客暑期多校训练营（第十场） Results Summary * Solved 7 out of 12 problems * Rank 32/1041 in official records * Solved 8 out of 12 afterwards Member Distribution Solved A B C D E F G H I text/html 2020-08-10T20:35:56+0800 Anonymous (anonymous@undisclosed.example.com) https://wiki.cvbbacm.com/doku.php?id=2020-2021:teams:mian:nowcoder_training:front_page&rev=1597062956&do=diff Nowcoder Trainings 2020牛客暑期多校训练营（第一场） task:3/3/10, rank:180/1216 2020牛客暑期多校训练营（第二场） task:4/4/11, rank:91/1162 2020牛客暑期多校训练营（第三场） task:7/8/12, rank:96/1178 2020牛客暑期多校训练营（第四场） task:5/5/10, rank:28/1159 2020牛客暑期多校训练营（第五场） task:5/5/11, rank:71/1145 2020牛客暑期多校训练营（第六场） task:5/6/11, rank:95/1120 2020牛客暑期多校训练营（第七场） task:4/6/10, rank:56/1140 2020牛客暑期多校训练营（第八场） task:3/4/11, rank:255/1033 2020牛客暑期多校训练营（第九场） task:7/8/12…