Paint on a Wall 题目链接:http://acm.split.hdu.edu.cn/showproblem.php?pid=4012 搜索+状态压缩 这题刚开始以为是dp(之前写过墙是一行的题,然而是在艾神讲完之后才调出来的= =),但是想不出来怎么搞,看到n<=8数据量这么小,应该搜索可以解,然后想都没想就上去写了IDA*,结果有段代码怎么都找不到bug,一直WA. 结束后,用bfs写了遍,每次转移数最多是(2n)^2,最差的情况是2n层,所以复杂度是(2n)^(4n),然而状态…

Paint on a Wall Time Limit: 10000/5000 MS (Java/Others)    Memory Limit: 65768/65768 K (Java/Others)Total Submission(s): 830    Accepted Submission(s): 325 Problem Description Annie wants to paint her wall to an expected pattern. The wall can be repr…

LED Decorative Light Manufacturer    introduction: LED wall lamp is a light-emitting diode as a light source installed on the wall or furniture wall to become an LED wall lamp. Traditional wall lamps use halogen lamps, which have low luminous efficie…

October 11. Hope is a good thing, maybe the best of things, and no good thing ever dies. 希望是美好的,也许是人间至善,而美好的事物永不消逝.2. Fear can hold you prisoner. Hope can set you free. 懦怯囚禁人的灵魂,希望可以让你自由.3. Prison life consists of routine, and then more routine. 监狱生活…

被第一题傻逼题卡了很久……好的我也是个傻逼 倒在了最后一题 本来以为小数据过了就能过大数据 结果下载了大数据 发现怎么输出了好多个零 调代码过程中超时了 结束后重新提交了一下 果然是不通过的 A 题目 Problem You are a contestant on a popular new game show and are playing for the grand prize! There are two big buttons, a red one and a black one. Yo…

Paint The Wall Time Limit: 20000/10000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 3427    Accepted Submission(s): 955 Problem Description As a amateur artist, Xenocide loves painting the wall. The wall can be c…

学习博客推荐——线段树+扫描线(有关扫描线的理解) 我觉得要注意的几点 1 我的模板线段树的叶子节点存的都是 x[L]~x[L+1] 2 如果没有必要这个lazy 标志是可以不下传的 也就省了一个push_down 3 注意push_up 写法有点不一样,不过是可以改成一样的. 简单裸题*2 L - Atlantis  HDU - 1542 #include <iostream> #include <cstdio> #include <algorithm> #inclu…

Problem Description As a amateur artist, Xenocide loves painting the wall. The wall can be considered as a line consisting of n nodes. Each node has its own color. Xenocide spends all day in front of the wall. Sometimes, he paints some consecutive no…

http://acm.hdu.edu.cn/showproblem.php?pid=1543 #include <cstdio> #include <cstring> #include <algorithm> #define maxn 10000 using namespace std; int h,w,n; ][],clo[maxn]; struct node { int x1,y1,x2,y2,c; }p[maxn*]; int bs(int key,int l,i…

点数很多,坐标值很大,然后离散化一下用一个点表示一小块的面积对应的颜色,然后更新的时候一块一块更新,查询的时候一块一块查询 #include<map> #include<set> #include<ctime> #include<cmath> #include<stack> #include<queue> #include<string> #include<vector> #include<cstdio&…