Description There is an apple tree outside of kaka's house. Every autumn, a lot of apples will grow in the tree. Kaka likes apple very much, so he has been carefully nurturing the big apple tree. The tree has N forks which are connected by branches.…
Apple Tree Time Limit: 2000MS Memory Limit: 65536K Description There is an apple tree outside of kaka's house. Every autumn, a lot of apples will grow in the tree. Kaka likes apple very much, so he has been carefully nurturing the big apple t…
id=10486" target="_blank" style="color:blue; text-decoration:none">POJ - 3321 Apple Tree Time Limit: 2000MS Memory Limit: 65536KB 64bit IO Format: %I64d & %I64u Submit Status Description There is an apple tree outside o…
P3384 [模板]树链剖分 题目描述 如题,已知一棵包含N个结点的树(连通且无环),每个节点上包含一个数值,需要支持以下操作: 操作1: 格式: 1 x y z 表示将树从x到y结点最短路径上所有节点的值都加上z 操作2: 格式: 2 x y 表示求树从x到y结点最短路径上所有节点的值之和 操作3: 格式: 3 x z 表示将以x为根节点的子树内所有节点值都加上z 操作4: 格式: 4 x 表示求以x为根节点的子树内所有节点值之和 输入输出格式 输入格式: 第一行包含4个正整数N.M.R.P,…
题目链接:http://poj.org/problem?id=3321 Apple Tree Time Limit: 2000MS Memory Limit: 65536K Total Submissions: 34812 Accepted: 10469 Description There is an apple tree outside of kaka's house. Every autumn, a lot of apples will grow in the tree. Kaka like…
题解: 树链剖分是显然的 问题在于求树链的并 比较简单的方法是 用线段树打标记覆盖,查询标记区间大小 Qlog^2n 代码: #include <bits/stdc++.h> using namespace std; #define IL inline #define rint register int #define rep(i,h,t) for (rint i=h;i<=t;i++) #define dep(i,t,h) for (rint i=t;i>=h;i--) cons…
题意: http://acm.hdu.edu.cn/showproblem.php?pid=3966 给一棵树,并给定各个点权的值,然后有3种操作: I x y z : 把x到y的路径上的所有点权值加上z D x y z:把x到y的路径上的所有点权值减去z Q z:查询节点编号为x的权值 这里主要放下用树状数组维护的模板 区间修改单点查询 好像用线段树更好? em.... 两种都放好了~ 好像说hduoj是windows系统容易爆栈 手动扩栈加这句 #pragma comment(linker,…
pid=3966" target="_blank" style="">题目链接:hdu 3966 Aragorn's Story 题目大意:给定一个棵树,然后三种操作 Q x:查询节点x的值 I x y w:节点x到y这条路径上全部节点的值添加w D x y w:节点x到y这条路径上全部节点的值降低w 解题思路:树链剖分,用树状数组维护每一个节点的值. #pragma comment(linker, "/STACK:1024000000,1…
Misha and Grisha are funny boys, so they like to use new underground. The underground has n stations connected with n - 1 routes so that each route connects two stations, and it is possible to reach every station from any other. The boys decided to h…
Aragorn's Story Time Limit: 10000/3000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 1321 Accepted Submission(s): 344 Problem Description Our protagonist is the handsome human prince Aragorn comes from The Lord…
Apple Tree Time Limit: 2000MS Memory Limit: 65536K Total Submissions: 25904 Accepted: 7682 Description There is an apple tree outside of kaka's house. Every autumn, a lot of apples will grow in the tree. Kaka likes apple very much, so he has been…
Apple Tree Time Limit: 2000MS Memory Limit: 65536K Total Submissions: 18623 Accepted: 5629 Description There is an apple tree outside of kaka's house. Every autumn, a lot of apples will grow in the tree. Kaka likes apple very much, so he has been…