Bring Them There Time Limit: 3000ms Memory Limit: 131072KB This problem will be judged on UVALive. Original ID: 295764-bit integer IO format: %lld      Java class name: Main By the year 3141, the human civilization has spread all over the galaxy. The…

Description 小A的楼房外有一大片施工工地,工地上有N栋待建的楼房.每天,这片工地上的房子拆了又建.建了又拆.他经常无聊地看着窗外发呆,数自己能够看到多少栋房子. 为了简化问题,我们考虑这些事件发生在一个二维平面上.小A在平面上(0,0)点的位置,第i栋楼房可以用一条连接(i,0)和(i,Hi)的线段表 示,其中Hi为第i栋楼房的高度.如果这栋楼房上任何一个高度大于0的点与(0,0)的连线没有与之前的线段相交,那么这栋楼房就被认为是可见的. 施工队的建造总共进行了M天.初始时,所有楼房…

UVALive - 4108 SKYLINE Time Limit: 3000MS     64bit IO Format: %lld & %llu Submit Status uDebug Description   The skyline of Singapore as viewed from the Marina Promenade (shown on the left) is one of the iconic scenes of Singapore. Country X would a…

UVALive - 3942 Remember the Word A potentiometer, or potmeter for short, is an electronic device with a variable electric resistance. It has two terminals and some kind of control mechanism (often a dial, a wheel or a slide) with which the resistance…

UVALive - 3942 Remember the Word Neal is very curious about combinatorial problems, and now here comes a problem about words. Know- ing that Ray has a photographic memory and this may not trouble him, Neal gives it to Jiejie. Since Jiejie can’t remem…

题目链接:http://www.lydsy.com/JudgeOnline/problem.php?id=2957 题意:中文题面 思路: 来自此博客 首先明确问题,对于每栋楼房的斜率K=H/X,问题就是问有多少个楼房的K比前面所有楼房的K都要大. 这题树套树当然可以,但是挺麻烦的,本渣觉得最简单就是分块-- 将N个楼房分成T块,不断维护每个块内楼房的可视序列,如一个块内楼房的高度分别为(3 1 4 2 6 7)那么这个块内楼房的可视序列就是(3 4 6 7)(注意不同的块内是不干扰的,如第一个…

题目:http://www.lydsy.com/JudgeOnline/problem.php?id=2957 分析: 首先明确问题,对于每栋楼房的斜率K=H/X,问题就是问有多少个楼房的K比前面所有楼房的K都要大. 这题树套树当然可以,但是挺麻烦的,本渣觉得最简单就是分块…… 将N个楼房分成T块,不断维护每个块内楼房的可视序列,如一个块内楼房的高度分别为(3 1 4 2 6 7)那么这个块内楼房的可视序列就是(3 4 6 7)(注意不同的块内是不干扰的,如第一个块可视序列为(3 4 6),第二…

题目传送门 /* 题意:本来有n个雕塑,等间距的分布在圆周上,现在多了m个雕塑,问一共要移动多少距离: 思维题:认为一个雕塑不动,视为坐标0,其他点向最近的点移动,四舍五入判断,比例最后乘会10000即为距离: 详细解释:http://www.cnblogs.com/zywscq/p/4268556.html */ #include <cstdio> #include <iostream> #include <algorithm> #include <cmath&…

DATABASE SYSTEM CONCEPTS, SIXTH EDITION There is a trade-off that the system designer must make between access timeand space overhead. Although the decision regarding this trade-off depends onthe specific application, a good compromise is to have a sp…

题目链接:https://icpcarchive.ecs.baylor.edu/index.php?option=com_onlinejudge&Itemid=8&page=show_problem&problem=4156 题目拷贝难度大我就不复制了. 题目大意:维护一个字符串,要求支持插入.删除操作,还有输出第 i 次操作后的某个子串.强制在线. 思路1:使用可持久化treap可破,详细可见CLJ的<可持久化数据结构的研究>. 思路2:rope大法好,详见:http…