根据ccz181078大爷的题解可得(QAQ,每次肯定是断掉连续一行||一列的栅栏... 贪心地想,一个格子与外面联通,显然是先把短的边界断掉(就像mst那样 但是比较蛋疼的是,因为我们每次断的时候,有一些点可能已经联通了,所以有的栅栏不用断>_< 如果我们断了x列栅栏,并且之前有断过行的栅栏,那么下一次断开行的时候,那一行上的联通块个数就是n-x+1..(假设有n行 列上的联通块个数同理 #include<cstdio> #include<iostream> #inc…

辣鸡wyz最近状态奇差,于是想用usaco题找找手感,万万没想到被虐了一脸TAT 先贴代码,有空再填坑 4409[Usaco2016 Feb]Circular barn #include <iostream> #include <cstdio> #include <cmath> #include <cstring> #include <cstdlib> #include <algorithm> #define ll long long…

4412: [Usaco2016 Feb]Circular Barn Description 有一个N个点的环,相邻两个点距离是1.点顺时针标号为1..N.每一个点有ci头牛,保证∑ci=N.每头牛都可以顺时针走.设一头牛走了d个单位停下了,将耗费d^2的能量.请设计一种牛的走法,使得每一个点上都正好有一头牛,且最小化耗费的能量. Input 第一行一个数N.N <= 100000接下来N行,每行一个数ci. Output 输出一个数表示耗费能量的最小值 Sample Input 10 1 0…

1.题意: 给出N个平面上的点.保证每一个点的坐标都是正奇数. 你要在平面上画两条线,一条是x=a,一条是y=b,且a和b都是偶数. 直线将平面划成4个部分,要求包含点数最多的那个部分点数最少. 2.分析:我们首先二分答案...然后我们枚举横着在哪里切开,用两个树状数组维护上下界,        保证四个框框都在mid之内. #include <cstdio> #include <cstring> #include <cstdlib> #include <algo…

先离散化一下(也可以不用 枚举横坐标,用线段树维护两边纵坐标上的节点数. 每次在线段树上二分...(感觉似乎树状数组也行? #include<cstdio> #include<iostream> #include<cstring> #include<algorithm> using namespace std; ; ; struct poi{ int x,y; }a[maxn]; struct yy{ int y,id; }y[maxn];int cnty;…

原文链接http://www.cnblogs.com/zhouzhendong/p/8724739.html 题目传送门 - BZOJ4409 题意 有一个N个点的环,相邻两个点距离是1.点顺时针标号为1..N.最初每一个点是空的.要求最终点i存在ri头牛.你有∑ri头牛.你可以选择最多k个点,然后把你的牛任意分配在这k个点里.之后,每一头牛可以选择不动,也可以顺时针走d格并呆在那里.这样,它要耗费d的能量.通过合理选择点.合理分配牛.合理安排牛的走动,使得消耗的总能量最小. $n\leq 10…

http://www.lydsy.com/JudgeOnline/problem.php?id=4411 用树状数组维护扫描线 一个树状数组维护扫描线之上的y<=i点,另一个维护扫描线之下y<=i的点 将点按x排好序,开始全部插入扫描线之下的树状数组 枚举x这一条线,线上的在第一个树状数组里加上,第二个树状数组里减去 最大值是一个单峰函数 可以用二分或三分 二分的话,哪边大往哪边移 #include<cstdio> #include<iostream> #include…

先看成一条链 for一遍找位置 在for一遍算答案 #include<algorithm> #include<iostream> #include<cstring> #include<string> #include<cstdio> #include<cmath> using namespace std; typedef long long LL; #define N 100010 int n; ; ],s[N<<]; i…

code: #include <bits/stdc++.h> #define N 100060 #define M 1000000 #define lson x<<1 #define rson x<<1|1 #define ll long long #define setIO(s) freopen(s".in","r",stdin) using namespace std; int n,num[N*10],ans=N,X0,X1;…

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…

There is a fence with n posts, each post can be painted with one of the k colors. You have to paint all the posts such that no more than two adjacent fence posts have the same color. Return the total number of ways you can paint the fence. Note:n and…

4742: [Usaco2016 Dec]Team Building Time Limit: 10 Sec  Memory Limit: 128 MBSubmit: 21  Solved: 16[Submit][Status][Discuss] Description Every year, Farmer John brings his NN cows to compete for "best in show" at the state fair. His arch -rival, F…

[BZOJ3943][Usaco2015 Feb]SuperBull Description Bessie and her friends are playing hoofball in the annual Superbull championship, and Farmer John is in charge of making the tournament as exciting as possible. A total of N (1 <= N <= 2000) teams are p…

[BZOJ3942][Usaco2015 Feb]Censoring Description Farmer John has purchased a subscription to Good Hooveskeeping magazine for his cows, so they have plenty of material to read while waiting around in the barn during milking sessions. Unfortunately, the…

USACO 2012 FEB SILVER 一.题目概览 中文题目名称 矩形草地 奶牛IDs 搬家 英文题目名称 planting cowids relocate 可执行文件名 planting cowids relocate 输入文件名 planting.in cowids.in relocate.in 输出文件名 planting.out cowids.out relocate.out 每个测试点时限 1秒 1秒 1秒 测试点数目 10 10 10 每个测试点分值 10 10 10 比较方式…

USACO 2014 FEB SILVER 一.题目概览 中文题目名称 自动打字 路障 神秘代码 英文题目名称 auto rblock scode 可执行文件名 auto rblock scode 输入文件名 auto.in rblock.in scode.in 输出文件名 auto.out rblock.out scode.out 每个测试点时限 1秒 1秒 1秒 测试点数目 10 10 10 每个测试点分值 10 10 10 比较方式 全文比较 全文比较 全文比较 二.运行内存限制 运行内存…

3942: [Usaco2015 Feb]Censoring Time Limit: 10 Sec  Memory Limit: 128 MBSubmit: 375  Solved: 206[Submit][Status][Discuss] Description Farmer John has purchased a subscription to Good Hooveskeeping magazine for his cows, so they have plenty of material…

Description 一个序列,每次可以将两个相同的数合成一个数,价值+1,求最后最大价值 \(n \leqslant 262144\) Sol DP. 这道题是 BZOJ 4580: [Usaco2016 Open]248 加强版. 做248的那个区间DP其实很多方案都是0,而且一个区间中只有一个合法的数字. 然后就是 一个区间合成一个数的方案的这个数字是固定的. \(f[i][j]\) 表示以 \(i\) 结尾是否能合成 \(j\),同时记录一下转移位置,每次向前找前一个指针就可以了. 复…

Fence Repair Time Limit: 2000MS   Memory Limit: 65536K Total Submissions: 42979   Accepted: 13999 Description Farmer John wants to repair a small length of the fence around the pasture. He measures the fence and finds that he needs N (1 ≤ N ≤ 20,000)…

E. Sign on Fence time limit per test 4 seconds memory limit per test 256 megabytes input standard input output standard output Bizon the Champion has recently finished painting his wood fence. The fence consists of a sequence of n panels of 1 meter w…

http://poj.org/problem?id=3253 Farmer John wants to repair a small length of the fence around the pasture. He measures the fence and finds that he needs N (1 ≤ N ≤ 20,000) planks of wood, each having some integer length Li (1 ≤ Li ≤ 50,000) units. He…

Codeforces Round #256 (Div. 2) C C. Painting Fence time limit per test 1 second memory limit per test 512 megabytes input standard input output standard output Bizon the Champion isn't just attentive, he also is very hardworking. Bizon the Champion d…

E. Sign on Fence   Bizon the Champion has recently finished painting his wood fence. The fence consists of a sequence of n panels of 1 meter width and of arbitrary height. The i-th panel's height is hi meters. The adjacent planks follow without a gap…

Color the fence 时间限制:1000 ms  |  内存限制:65535 KB 难度:2   描述 Tom has fallen in love with Mary. Now Tom wants to show his love and write a number on the fence opposite to Mary’s house. Tom thinks that the larger the numbers is, the more chance to win Mary…

1.codeforces 349B    Color the Fence 2.链接:http://codeforces.com/problemset/problem/349/B 3.总结: 刷栅栏.1-9每个字母分别要ai升油漆,问最多可画多大的数字. 贪心,也有点考思维. #include<bits/stdc++.h> using namespace std; #define LL long long #define INF 0x3f3f3f3f int main() { ]; while(…

There is a fence with n posts, each post can be painted with one of the k colors.You have to paint all the posts such that no more than two adjacent fence posts have the same color.Return the total number of ways you can paint the fence. Notice n and…

原题链接在这里:https://leetcode.com/problems/paint-fence/ 题目: There is a fence with n posts, each post can be painted with one of the k colors. You have to paint all the posts such that no more than two adjacent fence posts have the same color. Return the t…

RHCS中必须有Fence设备,在设备为知故障发生时,Fence负责让占有浮动资源的设备与集群断开. REDHAT的fence device有两种, 内部fence设备: IBM RSAII卡,HP的iLO卡,Dell的DRAC,还有IPMI的设备: 外部fence 设备: UPS,SAN SWITCH,NETWORK SWITCH等. 对于外部fence 设备,可以做拔电源的测试,因为备机可以接受到fence device返回的信号,备机可以正常接管服务, 对于内部fence 设备,不能做拔电…

题意:求给定图的欧拉回路(每条边只走一次) 若欧拉回路存在,图中只可能有0个or2个奇数度的点. 求解时,若有奇数度的点,则必须从该点开始.否则可以从任一点开始 求解过程:dfs //主程序部分 # circuit is a global array find_euler_circuit circuitpos = find_circuit(node ) --------------------------------------------- # nextnode and visited is…

3943: [Usaco2015 Feb]SuperBull Time Limit: 10 Sec  Memory Limit: 128 MBSubmit: 300  Solved: 185 Description Bessie and her friends are playing hoofball in the annual Superbull championship, and Farmer John is  in charge of making the tournament as ex…