Counting Haybales 题目描述 Farmer John is trying to hire contractors to help rearrange his farm, but so far all of them have quit when they saw the complicated sequence of instructions FJ wanted them to follow. Left to complete the project by himself, he…

Counting Haybales 时间限制: 50 Sec  内存限制: 256 MB提交: 52  解决: 18[提交][状态][讨论版] 题目描述 Farmer John is trying to hire contractors to help rearrange his farm, but so far all of them have quit when they saw the complicated sequence of instructions FJ wanted them…

P3184 [USACO16DEC]Counting Haybales数草垛 题目描述 Farmer John has just arranged his NN haybales (1 \leq N \leq 100,0001≤N≤100,000 ) at various points along the one-dimensional road running across his farm. To make sure they are spaced out appropriately, pl…

[题目链接] https://www.lydsy.com/JudgeOnline/problem.php?id=4392 [算法] 线段树 时间复杂度 : O(MlogN) [代码] #include<bits/stdc++.h> using namespace std; #define MAXN 200010 typedef long long LL; int n , m; LL a[MAXN]; struct SegmentTree { struct Node { int l , r; L…

23333,在扒了一天题解之后发现我竟然还能秒题,虽然这是个pj的sb题... (排个序,然后upper_bound和lower_bound一用就行了(是不是有O(1)的查询方法啊??貌似要离散啊,一样蛋疼..)) #include <bits/stdc++.h> #define LL long long #define inf 1e60 using namespace std; inline int ra() { ,f=; char ch=getchar(); ; ch=getchar();…

原题链接https://www.lydsy.com/JudgeOnline/problem.php?id=4747 先将原数组排序,然后二分查找即可.时间复杂度\(O((N+Q)logN)\). #include<algorithm> #include<iostream> #include<cstring> #include<cstdio> #define maxn 100010 using namespace std; inline int read(){…

Search GO 说明:输入题号直接进入相应题目,如需搜索含数字的题目,请在关键词前加单引号 Problem ID Title Source AC Submit Y 1000 A+B Problem 10983 18765 Y 1036 [ZJOI2008]树的统计Count 5293 13132 Y 1588 [HNOI2002]营业额统计 5056 13607 1001 [BeiJing2006]狼抓兔子 4526 18386 Y 2002 [Hnoi2010]Bounce 弹飞绵羊 43…

在上篇,我了解了基数的基本概念,现在进入Linear Counting算法的学习. 理解颇浅,还请大神指点! http://blog.codinglabs.org/articles/algorithms-for-cardinality-estimation-part-ii.html 它的基本处理方法和上篇中用bitmap统计的方法类似,但是最后要用到一个公式: 说明:m为bitmap总位数,u为0的个数,最后的结果为n的一个估计,且为最大似然估计(MLE). 那么问题来了,最大似然估计是什么东东…

来之不易的2017第一发ac http://poj.org/problem?id=2386 Lake Counting Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 31474   Accepted: 15724 Description Due to recent rains, water has pooled in various places in Farmer John's field, which is repr…

ZOJ3944 People Counting ZOJ3939 The Lucky Week 1.PeopleConting 题意:照片上有很多个人,用矩阵里的字符表示.一个人如下: .O. /|\ (.) 占3*3格子,句号“.”为背景.没有两个人完全重合.有的人被挡住了一部分.问照片上有几个人. 题解: 先弄个常量把3*3人形存起来,然后6个部位依次找,比如现在找头,找到一个头,就把这个人删掉(找这个人的各个部位,如果在该部位位置的不是这个人的身体,就不删),删成句号,疯狂找就行了. 代码:…