题目:求从s開始的递增序列(每次加1).求出他们加和不小于D的那个最后的加数. 分析:数学题.分治.s + s+1 + ... + n = n*(n+1)/2 - s*(s-1)/2 = (n+s)*(n-s+1)/2. 直接二分答案就可以(二分范围0~10^8). 说明:(⊙_⊙). #include <iostream> #include <cstdlib> using namespace std; long long sum(long long s, long long n)…

Problem H. Hotel in Ves Lagos Input le: hotel.in Output le: hotel.out Time limit: 1 second Memory limit: 256 megabytes A new hotel is being built in the city of Ves Lagos. The hotel will have an innite number of rooms (it is out of fashion to build h…

业务分析 1.需要一个房间类,包含房间的属性,比如房间编号.房间类型.是否占用. 2.需要一个旅馆类,旅馆有房间,提供的方法需要有 预订房间.打印房间信息.初始化房间.退房. 3.测试类,测试预订房间. package javasimple; import java.util.Scanner; public class HotelTest { public static void main(String[] args) { Hotel h = new Hotel(); h.print(); wh…

原文:http://edn.embarcadero.com/article/31863 By: Randy Miller Abstract: This tutorial provides a quick introduction to the Unified Modeling Language™ The heart of object-oriented problem solving is the construction of a model. The model abstracts the…

UVA 10627 - Infinite Race option=com_onlinejudge&Itemid=8&page=show_problem&category=516&problem=1568&mosmsg=Submission+received+with+ID+13837674" target="_blank" style="">题目链接 题意:一段跑道,A,B分别在两端,速度为u.v,两个人跑到还…

Hotel Time Limit:3000MS     Memory Limit:65536KB     64bit IO Format:%lld & %llu Description 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 th…

Description 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 Stree…

Description 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 Stree…

题目来源:https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=3&page=show_problem&problem=38  Ecological Bin Packing  Background Bin packing, or the placement of objects of certain weights into different bins subject…

Hotel Time Limit: 3000MSMemory Limit: 65536K Total Submissions: 10858Accepted: 4691 Description 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…

传送门 一开始在vjudge上看到这题时,标的来源是CSU 1120,第八届湖南省赛D题“平方根大搜索”.今天交题时CSU突然跪了,后来查了一下看哪家OJ还挂了这道题,竟然发现这题是出自UVA的,而且用的原题. ------------------------------------------------------------------------------------------------------------------ time limit 5s In binary, the…

A. Saitama Destroys Hotel   Saitama accidentally destroyed a hotel again. To repay the hotel company, Genos has volunteered to operate an elevator in one of its other hotels. The elevator is special — it starts on the top floor, can only move down, a…

A. Saitama Destroys Hotel 题目连接: http://www.codeforces.com/contest/608/problem/A Description Saitama accidentally destroyed a hotel again. To repay the hotel company, Genos has volunteered to operate an elevator in one of its other hotels. The elevato…

博客第一篇写在11月1号,果然die die die die die alone~ 一道不太难的题,白书里被放到排序这一节,半年前用快排A过一次,但是现在做的时候发现可以用字典树加深搜,于是乐呵呵的开始敲了,后来被卡了两天,一直以为算法错了,最后发现是输出答案时忘了回溯,这问题之前没怎么注意过,也算不小的收获. 字典树A了之后换sort来写,没想到快排效率更高,时间减少了一半,在POJ上A了之后重新在UVA上提交,居然WA了,调试半个小时,发现是变长数组的问题,看来UVA上的编译器对c99的支持…

http://poj.org/problem?id=3667 Hotel Time Limit: 3000MS   Memory Limit: 65536K Total Submissions: 9484   Accepted: 4066 Description The cows are journeying north to Thunder Bay in Canada to gain cultural enrichment and enjoy a vacation on the sunny s…

Description The "Informatics" hotel is one of the most luxurious hotels from Galaciuc. A lot of tourists arrive or leave this hotel in one year. So it is pretty difficult to keep the evidence of the occupied rooms. But this year the owner of the…

poj3667:http://poj.org/problem?id=3667 题目大意:Hotel有N(1 ≤ N ≤ 50,000)间rooms,并且所有的rooms都是连续排列在同一边,groups需要check in 房间,要求房间的编号为连续的r..r+Di-1并且r是最小的:visitors同样可能check out,并且他们每次check out都是编号为Xi ..Xi +Di-1 (1 ≤ Xi ≤ N-Di+1)的房间,题目的输入有两种样式:    1  a     :  gro…

题目链接:https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&page=show_problem&problem=2473 题解: 首先我们可以得到的约束条件形如 xi - xj <= b[k] ,即可以转换为 j - > i连边,且权值为b[k],这样建图后我们判断是否有解,只需要用spfa跑负圈就可以了. 如果存在负圈,原差分系统定然无解. 简单证明: 我们不妨设这个环为 x1,…

Hotel 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 t…

Examining the Rooms Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 1138    Accepted Submission(s): 686 Problem Description A murder happened in the hotel. As the best detective in the town, yo…

Examining the Rooms Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 1305    Accepted Submission(s): 796 Problem Description A murder happened in the hotel. As the best detective in the town, yo…

Hotel Time Limit: 3000MS   Memory Limit: 65536K Total Submissions: 14958   Accepted: 6450 Description 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…

Description 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 Stree…

Hotel Time Limit: 10000MS   Memory Limit: 65536K Total Submissions: 859   Accepted: 280 Description Zebel, the tour coordinator, has reserved a limited number of hotel rooms for his clients. Rooms have different capacities and naturally, different pr…

P2894 [USACO08FEB]酒店Hotel https://www.luogu.org/problem/show?pid=2894 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…

有用的词: hotel reservation/booking: 酒店预订 standard room:标准间 suite: 套房 king size bed: 大床房 double bed:双床房 extra bed/cot: 加床 crib: 宝宝床.婴儿床 checking in on...checking out on...: 某日入住,某日离店 breakfast included: 包早餐 free cancellation: 免费取消 incidental deposit/char…

Problem  UVA - 11478 - Halum Time Limit: 3000 mSec Problem Description You are given a directed graph G(V,E) with a set of vertices and edges. Each edge (i,j) that connects some vertex i to vertex j has an integer cost associated with that edge. Defin…

poj3667 HotelTime Limit: 3000MS Memory Limit: 65536KTotal Submissions: 18925 Accepted: 8242Description 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. Bessi…

题目传送门 酒店 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 Str…

Time limit 1000 ms Memory limit 131072 kB The life of Little A is good, and, he managed to get enough money to run a hotel. The best for him is that he need not go to work outside, just wait for the money to go into his pocket. Little A wants everyth…