3126: [Usaco2013 Open]Photo Time Limit: 10 Sec Memory Limit: 128 MBSubmit: 222 Solved: 116 Description Farmer John has decided to assemble a panoramic photo of a lineup of his N cows (1 <= N <= 200,000), which, as always, are conveniently numbered…
3126: [Usaco2013 Open]Photo Time Limit: 10 Sec Memory Limit: 128 MBSubmit: 335 Solved: 169[Submit][Status][Discuss] Description Farmer John has decided to assemble a panoramic photo of a lineup of his N cows (1 <= N <= 200,000), which, as always,…
Description 给你一个n长度的数轴和m个区间,每个区间里有且仅有一个点,问能有多少个点 Input * Line 1: Two integers N and M. * Lines 2..M+1: Line i+1 contains a_i and b_i. Output * Line 1: The maximum possible number of spotted cows on FJ's farm, or -1 if there is no possible solution. S…
题目链接 题意: I. CHANGE u t : 把结点u的权值改为t II. QMAX u v: 询问从点u到点v的路径上的节点的最大权值 III. QSUM u v: 询问从点u到点v的路径上的节点的权值和 注意:从点u到点v的路径上的节点包括u和v本身 分析:树链剖分第一题,把树拆成一条条链,有重链和轻链,每个点有转换后的新的位置,同一条链是线性的区间,这样可以用线段树进行操作.第一个是单点更新,第二个先求LCA,然后把u和v移动到lca所在的链,转移一次都是转移链,区间询问最大值和总和,…
A Simple Problem with Integers Time Limit: 5000MS Memory Limit: 131072K Total Submissions: 53749 Accepted: 16131 Case Time Limit: 2000MS Description You have N integers, A1, A2, ... , AN. You need to deal with two kinds of operations. One type of…
DZY Loves Sorting Time Limit: 12000/6000 MS (Java/Others) Memory Limit: 262144/262144 K (Java/Others)Total Submission(s): 294 Accepted Submission(s): 77 Problem Description DZY has a sequence a[1..n]. It is a permutation of integers 1∼n. Now he…
#include<iostream> #include<cmath> using namespace std; #define maxn 200005 class Node{ public: int l,r; int add;//附加值 int sum; }node[maxn]; int getRight(int n){//获得满足2^x>=n的最小x[从0层开始,给编号获得层数] return ceil(log10(n*1.0)/log10(2.0)); } void bu…
题目描述 The cows are journeying north to Thunder Bay in Canada to gain cultural enrichment and enjoy a vacation on the sunny shores of Lake Superior. Bessie, ever the competent travel agent, has named the Bullmoose Hotel on famed Cumberland Street as th…
3126: [Usaco2013 Open]Photo Time Limit: 10 Sec Memory Limit: 128 MBSubmit: 374 Solved: 188[Submit][Status][Discuss] Description Farmer John has decided to assemble a panoramic photo of a lineup of his N cows (1 <= N <= 200,000), which, as always,…
