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题目：Supposethatallthekeysinabinarytreearedistinctpositiveintegers.Giventhepostorderandinordertraversalsequences,youaresupposedtooutputthelevelordertraversalsequenceofthecorrespondingbinarytree.InputSpecification:Eachi
- 2023-04-03Problem B. Harvest of Apples 组合数求和（莫队没怎么看懂）
ProblemB.HarvestofApplesTimeLimit:4000/2000MS(Java/Others) MemoryLimit:262144/262144K(Java/Others)TotalSubmission(s):3775 AcceptedSubmission(s):1450 ProblemDescriptionTherearenapplesonatree,numberedfrom1ton.Count
- 2022-10-25Luogu P4915 帕秋莉的魔导书
题目链接：传送门动态开点是真的麻烦跟普通线段树差别还是挺大的题意就是区间前缀和的和除以区间长度#include<iostream>#include<cstdio>#include<cstring>#inc
- 2022-08-16[Codeforces_gym_102136] I.Permutations again
传送门DescriptionGivenasequence\(A_i\)consistingof\(N\)integers.Findthenumberofpairs\((L,R)\)forwhichthesubsegment\({A_L,A_{L + 1},