https://wiki.cvbbacm.com/ 2026-04-30T02:30:48+0800 https://wiki.cvbbacm.com/ https://wiki.cvbbacm.com/lib/exe/fetch.php?media=favicon.ico text/html 2020-05-12T00:33:11+0800 Anonymous (anonymous@undisclosed.example.com) https://wiki.cvbbacm.com/doku.php?id=2020-2021:teams:mian:icpc_regionals:2016-2017_acm-icpc_neerc_central_subregional_contest&rev=1589214791&do=diff 2016-2017 ACM-ICPC, NEERC, Central Subregional Contest Virtual Participated on May 10, 2020. Practice & VP available here: Codeforces Gym * * * * * * * * * * * * * * * * * * * $n$$k$$1\le n, k \le 500$$\mathrm{Ans}:=\lfloor\cfrac{2n}{k}\rfloor+\left[2n\not\equiv 0\pmod{k}\right]$$\uparrow$$n < k$$n$$n\equiv 0\pmod 3$$1\le n\le 300$$\mathrm{Ans}=\begin{cases}2^{\frac{2n}{3}-1}+2^{\frac{n}{3}-1}-1,& n\equiv 0\… text/html 2020-05-22T20:32:00+0800 Anonymous (anonymous@undisclosed.example.com) https://wiki.cvbbacm.com/doku.php?id=2020-2021:teams:mian:icpc_regionals:2016-2017_acm-icpc_neerc_moscow_subregional_contest&rev=1590150720&do=diff 2016-2017 ACM-ICPC, NEERC, Moscow Subregional Contest Virtual Participated on May 17, 2020. Practice & VP available here: Codeforces Gym Results Summary * solved 5 out of 12 problems * Rank 18/262 in official records Virtual Participate Submit Distribution in Members $\{a_i\}$$(i, j, k)$$i<j<k$$a_i<a_j>a_k$$|j-i|+|k-j|$$\Theta(n)$$l$$r$$w$$0$$r$$w$$[0, l]$$DEADLOCK$$OK$$\gcd (r, w)$$r + w > l$$r$$l - w$$\gcd (r, w)$$1\to 2\to \dots \to n\to \dots\to 1$$n$$m$$i$$a_i$$b_i$$i$$c_i$$a_i… text/html 2020-06-04T19:09:54+0800 Anonymous (anonymous@undisclosed.example.com) https://wiki.cvbbacm.com/doku.php?id=2020-2021:teams:mian:icpc_regionals:2016-2017_acm-icpc_neerc_northern_subregional_contest&rev=1591268994&do=diff 2016-2017 ACM-ICPC, NEERC, Northern Subregional Contest Virtual Participated on May 31, 2020. VP & Practice available here: Codeforces Gym Results Summary * Solved 7 out of 11 problems * Rank 13/107 in official records * Solved 8 out of 11 afterwards Virtual Participation $h\times w$$x$$y$$n$$x$$y$$A = x + y - n$$B = x - A$$C = y - A$$A$$A$$A = 0$$A = 2$$A >= 4$$BBGG$$rank_i\to rank_{i+1}$$H\times W$$h\times w$$m$$lca$$O(q\log n)$$lca$$DFS$$lca$$f[S][x][y]$$s(nx,ny,x,y)$$(nx,ny),(x,y… text/html 2020-06-18T19:59:02+0800 Anonymous (anonymous@undisclosed.example.com) https://wiki.cvbbacm.com/doku.php?id=2020-2021:teams:mian:icpc_regionals:2016-2017_acm-icpc_south_pacific_regional_contest_sppc_16&rev=1592481542&do=diff 2016-2017 ACM-ICPC, South Pacific Regional Contest (SPPC 16) The contest took place in Sydney, Australia on November 26, 2016. The top 12 teams in the region competed in the ACM-ICPC South Pacific Regional Contest 2016. Practice & VP available here: $a, b$$a, b$$10^9$$n$$(x,y)$$x$$y$$n$$[l,r)$$n$$1 \sim (n-1)$$Q$$Q_i$$Q_i$$n$$craziness$$craziness$$P$$n\le 5e5$$1$$0$$01$$FFT$$01$$n$$B$$i$$craziness$$(A*B)_{n+i-1}$$100$$250$$\{0/\mathrm{False},1/\mathrm{Uncertain},2/\mathrm{True}\}$$\mathrm{AND}…