Line Painting Time limit: 2.0 secondMemory limit: 64 MB The segment of numerical axis from 0 to 109 is painted into white color. After that some parts of this segment are painted into black, then some into white again and so on. In total there have b…

题目大意;说是可以吧一段区间变成白色或者黑色, 区间(0-10^9)初始都是白色,问经过n次操作以后最大的连续白色区间 Problem Description The segment of numerical axis from 0 to 109 is painted into white color. After that some parts of this segment are painted into black, then some into white again and so o…

题目链接: https://cn.vjudge.net/problem/URAL-1019 题目大意: 一个0~1e9的区间,初始都是白的,现进行N次操作,每次将一段区间图上一中颜色.最后问说连续最长的白色区间. 解题思路: 先离散化,之后可暴力,或者用线段树维护 离散化后,染色时候应注意从第二个点开始染色. 比如:1 2 3 4 5 6 7 8 9 10,现在染色7 - 9 那么只需要把8 9 染色即可,因为7-9是两段区间,用8表示7-8区间,9表示8-9区间. 这样表示不会出错. #inc…

1019 离散化都忘记怎么写了 注意两个端点 离散化后用线段树更新区间 混色为-1  黑为2  白为1  因为N不大 最后直接循环标记这一段的颜色查找 #include <iostream> #include<cstdio> #include<cstring> #include<algorithm> #include<stdlib.h> using namespace std; #define N 100010 #define LL long l…

跟前面某个题一样,都是区间染色问题,还是用我的老方法,区间离散化+二分区间端点+区间处理做的,时间跑的还挺短 坑爹的情况就是最左端是0,最右端是1e9,区间求的是开区间 #include <stdio.h> #include <string.h> #include <math.h> #include <algorithm> using namespace std; typedef struct { int l; int r; bool color; }seg…

http://judge.u-aizu.ac.jp/onlinejudge/description.jsp?id=DSL_5_A The Maximum Number of Customers Idea: find the most overlapped segment.  Similiar to the line painting Mark the left and right element, x: L, O: R #include<cstdio> #include<cstdlib&…

原文地址:http://blog.csdn.net/zearot/article/details/48299459(如有侵权,请联系博主,立即删除.) 线段树详解    By 岩之痕 目录: 一:综述     二:原理    三:递归实现    四:非递归原理      五:非递归实现 六:线段树解题模型    七:扫描线   八:可持久化 (主席树)     九:练习题 一:综述 假设有编号从1到n的n个点,每个点都存了一些信息,用[L,R]表示下标从L到R的这些点. 线段树的用处就是,对编号…

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…

Vasya works as a watchman in the gallery. Unfortunately, one of the most expensive paintings was stolen while he was on duty. He doesn't want to be fired, so he has to quickly restore the painting. He remembers some facts about it. The painting is a…

题目链接: Wall Painting Time Limit: 10000/5000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 2681    Accepted Submission(s): 857 Problem Description Ms.Fang loves painting very much. She paints GFW(Great Funny Wall) ev…

Problem C. Painting CottagesTime Limit: 2 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/gym/100342/attachments Description The new cottage settlement is organized near the capital of Flatland. The construction company that is building the settl…

Problem Description Josh Lyman is a gifted painter. One of his great works is a glass painting. He creates some well-designed lines on one side of a thick and polygonal glass, and renders it by some special dyes. The most fantastic thing is that it c…

Wall Painting Time Limit: 10000/5000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 1026    Accepted Submission(s): 280 Problem Description Ms.Fang loves painting very much. She paints GFW(Great Funny Wall) every da…

Cube painting Problem Description: We have a machine for painting cubes. It is supplied with three different colors: blue, red and green. Each face of the cube gets one of these colors. The cube's faces are numbered as in Figure 1. Figure 1. Since a…

Ball Painting 题目连接: http://codeforces.com/gym/100015/attachments Description There are 2N white balls on a table in two rows, making a nice 2-by-N rectangle. Jon has a big paint bucket full of black paint. (Don't ask why.) He wants to paint all the b…

题目链接: B. Restoring Painting time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Vasya works as a watchman in the gallery. Unfortunately, one of the most expensive paintings was stolen while he…

Canvas Painting 题目链接: http://acm.hust.edu.cn/vjudge/contest/127406#problem/C Description http://7xjob4.com1.z0.glb.clouddn.com/a4717ad58f73aa6ff84a1ab3f051c3f8 Input The first line consists of a single integer T, the number of test cases. Each test c…

Problem C. Painting CottagesTime Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/gym/100342/attachments Description The new cottage settlement is organized near the capital of Flatland. The construction company that is building the sett…

B. Painting Pebbles time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output There are n piles of pebbles on the table, the i-th pile contains ai pebbles. Your task is to paint each pebble using one…

B. Painting The Wall time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output User ainta decided to paint a wall. The wall consists of n2 tiles, that are arranged in an n × n table. Some tiles are p…

B. Painting Pebbles time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output There are n piles of pebbles on the table, the i-th pile contains ai pebbles. Your task is to paint each pebble using one…

dp..dp(i, j)表示画两个点为i-j, i的最优答案. dp(i, j) = min{ dp(i-j, k) } + cost[i] (1≤k≤M-j) 令f(i, j) = min{dp(i, j)}, 那么转移时间下降为O(1).然后滚动数组..这道题卡空间..时间复杂度O(NM) -------------------------------------------------------------------------------- #include<cstdio> #in…

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 decided to paint his old fence his…

Description Bizon the Champion isn't just attentive, he also is very hardworking. Bizon the Champion decided to paint his old fence his favorite color, orange. The fence is represented as n vertical planks, put in a row. Adjacent planks have no gap b…

[luogu P2205] [USACO13JAN]画栅栏Painting the Fence 题目描述 Farmer John has devised a brilliant method to paint the long fence next to his barn (think of the fence as a one-dimensional number line). He simply attaches a paint brush to his favorite cow Bessi…

The Big Painting 题目连接: http://acm.hust.edu.cn/vjudge/contest/view.action?cid=122283#problem/J Description Samuel W. E. R. Craft is an artist with a growing reputation. Unfortunately, the paintings he sells do not provide him enough money for his dail…

121. Bridges painting time limit per test: 0.25 sec. memory limit per test: 4096 KB New Berland consists of N (1£ N£ 100) islands, some of them are connected by bridges. There can be no more than one bridge between any pair of islands. Mr. President…

183. Painting the balls time limit per test: 0.25 sec.memory limit per test: 4096 KB input: standard inputoutput: standard output Petya puts the N white balls in a line and now he wants to paint some of them in black, so that at least two black balls…

C. Kamal-ol-molk's Painting time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Rumors say that one of Kamal-ol-molk's paintings has been altered. A rectangular brush has been moved right and…

B. Painting The Wall time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output User ainta decided to paint a wall. The wall consists of n2 tiles, that are arranged in an n × n table. Some tiles are p…