DQUERY - D-query #sorting #tree English Vietnamese Given a sequence of n numbers a1, a2, ..., an and a number of d-queries. A d-query is a pair (i, j) (1 ≤ i ≤ j ≤ n). For each d-query (i, j), you have to return the number of distinct elements in the…

Given a sequence of n numbers a1, a2, ..., an and a number of d-queries. A d-query is a pair (i, j) (1 ≤ i ≤ j ≤ n). For each d-query (i, j), you have to return the number of distinct elements in the subsequence ai, ai+1, ..., aj. Input Line 1: n (1…

Sequence II Time Limit: 9000/4500 MS (Java/Others)    Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 849    Accepted Submission(s): 204 Problem Description Mr. Frog has an integer sequence of length n, which can be denoted as a1,a2,⋯…

Dynamic Rankings Time Limit: 10000MS   Memory Limit: 32768KB   64bit IO Format: %lld & %llu Submit Status Description The Company Dynamic Rankings has developed a new kind of computer that is no longer satisfied with the query like to simply find the…

题意 给你一个区间,支持如下操作: 在一段区间内加上一个值,并生成一个历史版本 查询某个版本下一段区间内的和 回到一个历史版本上并舍弃之后的版本 做法 这就是主席树区间修改裸题啦QwQ 上一篇博客我讲了主席树可以资瓷单点修改,那么区间修改资不资瓷呢?那当然是资瓷的啦. 就像一般的线段树一样,主席树的一个内部节点也可以存储两个儿子的和,在修改时打标记,在查询时直接返回当前区间的值即可.和单点修改不同的是,区间修改一次最多需要修改线段树上的4个节点(可以脑内证明),也就是说我们需要在历史版本上新建…

To the moon Time Limit: 4000/2000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 5117    Accepted Submission(s): 1152 Problem Description BackgroundTo The Moon is a independent game released in November 2011, it is…

Split The Tree 时间限制: 1 Sec  内存限制: 128 MB提交: 46  解决: 11[提交] [状态] [讨论版] [命题人:admin] 题目描述 You are given a tree with n vertices, numbered from 1 to n. ith vertex has a value wiWe define the weight of a tree as the number of different vertex value in the…

3267. D-query Problem code: DQUERY English Vietnamese Given a sequence of n numbers a1, a2, ..., an and a number of d-queries. A d-query is a pair (i, j) (1 ≤ i ≤ j ≤ n). For each d-query (i, j), you have to return the number of distinct elements in…

SPOJ - 3267 主席树的又一种写法. 从后端点开始添加主席树, 然后如果遇到出现过的元素先把那个点删除, 再更新树, 最后查询区间就好了. #include<bits/stdc++.h> using namespace std; #define Fopen freopen("_in.txt","r",stdin); freopen("_out.txt","w",stdout); #define LL lon…

DQUERY - D-query #sorting #tree English Vietnamese Given a sequence of n numbers a1, a2, ..., an and a number of d-queries. A d-query is a pair (i, j) (1 ≤ i ≤ j ≤ n). For each d-query (i, j), you have to return the number of distinct elements in the…