Ambitious Experiment Time limit: 3.0 secondMemory limit: 128 MB During several decades, scientists from planet Nibiru are working to create an engine that would allow spacecrafts to fall into hyperspace and move there with superluminal velocity. To c…

2062. Ambitious Experiment Time limit: 3.0 secondMemory limit: 128 MB During several decades, scientists from planet Nibiru are working to create an engine that would allow spacecrafts to fall into hyperspace and move there with superluminal velocity…

During several decades, scientists from planet Nibiru are working to create an engine that would allow spacecrafts to fall into hyperspace and move there with superluminal velocity. To check whether their understanding of properties of hyperspace is…

[题目链接] http://acm.timus.ru/problem.aspx?space=1&num=2062 [题目大意] 给出两个操作,操作一给出区间[l,r],对l到r中的每一个下标i, i,2*i,3*i……位置都增加x,操作二要求查询一个位置的当前值 [题解] 在修改的时候,我们将增量只标识在i上,查询的时候,查询下标的因子和即可. 考虑到这种查询方法需要sqrt(n)枚举判断因子,用二叉数据结构可能会超时, 因此我们用分块nsqrt(n)修改,O(1)查询特定位置. [代码] #i…

给定一个序列,支持以下操作: 对区间[l,r]的每个i,将1i,2i,3i,...这些位置的数都加d. 询问某个位置的数的值. 如果把修改看作对区间[l,r]的每个数+d,那么询问x位置上的数时,显然就是将x的所有约数位置上的数求和咯.比较显然.…

http://acm.timus.ru/problem.aspx?space=1&num=2062 题意:有n个数,有一个值,q个询问,有单点询问操作,也有对于区间[l,r]的每个数i,使得num[i] + w, num[i*2] + w, num[i*3] + w…… 思路:有树状数组和分块两种做法,对比后分块的速度比较快(暴力的艺术).线段树会超时(可能写法不好). 1.树状数组用到的是单点询问区间修改,我要注意一下其写法...修改为:Add(l, w), Add(r + 1, -w); 查…

This paper presented a very interesting topic. Censorship in China has always drawn people's attention since in a perspective of universal values censorship repress the free will of people to express themselves. This paper, focusing on the censorship…

Reading With Purpose: A grand experiment This is the preface to a set of notes I'm writing for a seminar this semester. It will be a fun and bumpy ride ! Reading research papers in mathematical disciplines takes training. A student’s natural tendency…

  Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 1363   Accepted: 476   Special Judge Description Simon is doing a physics experiment with N identical balls with the same radius of R centimeters. Before the experiment, all N balls are f…

Description Simon ), the first ball is released and falls down due to the gravity. After that, the balls are released one by one in every second until all balls have been released. When a ball hits the ground, it will bounce back with the same speed…

Chemistry Experiment 维护一个权值线段树,然后二分答案. #include<bits/stdc++.h> #define LL long long #define LD long double #define ull unsigned long long #define fi first #define se second #define mk make_pair #define PLL pair<LL, LL> #define PLI pair<LL,…

Experiment report of Besti course:<Program Design & Data Structures> Class: 1623 Student Name: Wang, Yixiao Student Number:20162314 Tutor:Mr.Lou.Mr.Wang Experiment date:2017.10.27 Secret level: Unsecretive Experiment time:60 minutes Major/Electi…

Experiment report of Besti course:<Program Design & Data Structures> Class: 1623 Student Name: Wang, Yixiao Student Number:20162314 Tutor:Mr.Lou.Mr.Wang Experiment date:2017.9.26 Secret level: Unsecretive Experiment time:60 minutes Major/Electiv…

Experiment report of Besti course:<Program Design & Data Structures> Class: 1623 Student Name: Wang, Yixiao Student Number:20162314 Tutor:Mr.Lou.Mr.Wang Experiment date:2017.11.19 Secret level: Unsecretive Experiment time:60 minutes Major/Electi…

Experiment report of Besti course:<Program Design & Data Structures> Class: 1623 Student Name: Wang, Yixiao Student Number:20162314 Tutor:Mr.Lou.Mr.Wang Experiment date:2017.11.6 Secret level: Unsecretive Experiment time:60 minutes Major/Electiv…

1381 - Scientific Experiment Time Limit: 20 Sec  Memory Limit: 256 MB 题目连接 http://www.lightoj.com/volume_showproblem.php?problem=1381 Description John wants to be a scientist. A first step of becoming a scientist is to perform experiment. John has de…

Physics Experiment Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 2936   Accepted: 1045   Special Judge Description Simon is doing a physics experiment with N identical balls with the same radius of R centimeters. Before the experiment,…

Physics Experiment Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 3392 Accepted: 1177 Special Judge Description Simon is doing a physics experiment with N identical balls with the same radius of R centimeters. Before the experiment, all N…

Physics Experiment Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 1031   Accepted: 365   Special Judge Description Simon is doing a physics experiment with N identical balls with the same radius of R centimeters. Before the experiment,…

Physics Experiment Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 1489   Accepted: 509   Special Judge Description Simon is doing a physics experiment with N identical balls with the same radius of R centimeters. Before the experiment,…

#the real experiment for simon effect #load the library which is our need import pygame import sys import random from pygame.locals import * #creat the subject information function def sub_info(): sub_ID = input("please input your number: ") sub…

#the real experiment for simon effect #load the library which is our need import pygame import sys import random from pygame.locals import * #creat the subject information function def sub_info(): sub_ID = input("please input your number: ") sub…

## #the real experiment for simon effect #load the library which is our need import pygame import sys,random from pygame.locals import * pygame.init() win = pygame.display.set_mode((800,600),DOUBLEBUF|HWSURFACE) left = (200,300) right = (600,300) red…

5.1Probability Basics uncertainty is inherent in inferential statistics,因为总是需要样本估计总体,The science of uncertainty is called probability theory.学习概率分布帮助我们通过样本分析总体的相关数据(eg,mean...) Basically, by an experiment, we mean an action whose outcome cannot be pr…

原题如下: Physics Experiment Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 3583   Accepted: 1275   Special Judge Description Simon is doing a physics experiment with N identical balls with the same radius of R centimeters. Before the exper…

git clone https://github.com/Neohapsis/mptcp-abuse.git sudo apt-get install python-pip sudo pip install netaddr…

In order to provide an environment for network experiments in the future, I use VirutalBox to create some hosts. My real host is Ubuntu 14.04 LTS. And I will install some OSs gradually. Kali Linux Installation Nothing more to record. Just remember to…

物理实验 题目大意:有一个与地面垂直的管子,管口与地面相距H,管子里面有很多弹性球,从t=0时,第一个球从管口求开始下落,然后每1s就会又有球从球当前位置开始下落,球碰到地面原速返回,球与球之间相碰会发生完全弹性碰撞(各自方向改变,速率变为相碰时另一个球的速率)问最后所有球的位置? 这一题又是一道弹性碰撞模型的题目,和Liner World有点像,但是这一题不要求输出球的名字,而是要你求得各个球的高度 这道题我们只用明白一个道理就很方便了: 首先我们来看一个球的情况: 一个球从H的高度下落,碰到…

1.使用oracle sql developer 4.0.3作为hive query的IDE. 下载hive-jdbc driver http://www.cloudera.com/content/cloudera/en/downloads/connectors/hive/jdbc/hive-jdbc-v2-5-6.html Start    Oracle    SQL    Developer    and    navigate    to    Preferences    |    Da…

题意 有一个竖直的管子内有n个小球,小球的半径为r,最下面的小球距离地面h高度,让小球每隔一秒自由下落一个,小球与地面,小球与小球之间可视为弹性碰撞,让求T时间后这些小球的分布 Input The first line of the input contains one integer C (C ≤ 20) indicating the number of test cases. Each of the following lines contains four integers N, H, R…