[HDU5919]Sequence II 试题描述 Mr. Frog has an integer sequence of length n, which can be denoted as a1,a2,⋯,an There are m queries. In the i-th query, you are given two integers li and ri. Consider the subsequence al_i,al_(i+1),al_(i+2),⋯,ari. We can den…

Mr. Frog has an integer sequence of length n, which can be denoted as a1,a2,⋯,ana1,a2,⋯,anThere are m queries. In the i-th query, you are given two integers lili and riri. Consider the subsequence ali,ali+1,ali+2,⋯,ariali,ali+1,ali+2,⋯,ari. We can de…

从后向前建主席树,以位置为下标建树,然后查询区间出现次数的第k/2大即可. 复杂度O(nlogn) #include<bits/stdc++.h> using namespace std; ; int num,ans[N],T,pre[N],rt[N],a[N]; struct node { int s,l,r; }t[N*]; void init() { memset(rt,,; memset(pre,,sizeof(pre)); } void change(int &x,int y…

题面 Vjudge Sol 给一个数列,有m个询问,每次问数列[l,r]区间中所有数的第一次出现的位置的中位数是多少,强制在线 主席树 询问区间内不同的数的个数 树上二分找到那个中位数 # include <bits/stdc++.h> # define RG register # define IL inline # define Fill(a, b) memset(a, b, sizeof(a)) using namespace std; typedef long long ll; con…

oracle创建序列化: CREATE SEQUENCE seq_itv_collection            INCREMENT BY 1  -- 每次加几个              START WITH 1399       -- 从1开始计数              NOMAXVALUE        -- 不设置最大值              NOCYCLE               -- 一直累加,不循环              CACHE 10; oracle修改序列…

功能:备份存储过程,视图,函数触发器,Sequence序列号等准备工作:--1.创建文件夹 :'E:/OracleBackUp/ProcBack';--文本存放的路径--2.执行:create or replace directory MyProcBakPath as 'E:/OracleBackUp/ProcBack';--3.赋权限:sqlplus /nologconn user/pswd as sysdbagrant select on DBA_OBJECTS to user;--4.创建…

环境:Oracle 11.2.0.4 DG 故障现象: 客户在备库告警日志中发现GAP sequence提示信息: Mon Nov 21 09:53:29 2016 Media Recovery Waiting for thread 1 sequence 12034 Fetching gap sequence in thread 1, gap sequence 12034-12078 Mon Nov 21 09:55:20 2016 FAL[client]: Failed to request…

The set [1,2,3,-,n] contains a total of n! unique permutations. By listing and labeling all of the permutations in order,We get the following sequence (ie, for n = 3): "123" "132" "213" "231" "312" "3…

Check whether the original sequence org can be uniquely reconstructed from the sequences in seqs. The org sequence is a permutation of the integers from 1 to n, with 1 ≤ n ≤ 104. Reconstruction means building a shortest common supersequence of the se…

Given a binary tree, find the length of the longest consecutive sequence path. The path refers to any sequence of nodes from some starting node to any node in the tree along the parent-child connections. The longest consecutive path need to be from p…