题目链接:http://www.codeforces.com/problemset/problem/69/A题意:给你n个三维空间矢量,求这n个矢量的矢量和是否为零.C++代码: #include <cstdio> #include <iostream> using namespace std; int x, y, z; int main() { int n, tx, ty, tz; cin >> n; while (n--) { cin >> tx >…

Problem description A guy named Vasya attends the final grade of a high school. One day Vasya decided to watch a match of his favorite hockey team. And, as the boy loves hockey very much, even more than physics, he forgot to do the homework. Specific…

之所以在codeforces上找这100道水题的原因是为了巩固我对最近学的编程语言的掌握程度. 找的方式在codeforces上的PROBLEMSET中过的题最多的那些题里面出现的最前面的10个题型,它们是: math(数学) brute force(暴力) strings(字符串) implementation(模拟) greedy(贪心) sortings(排序) number theory(数论) constructive algorithm dp(动态规划) shortest path(…

Text My aunt Jennifer is an actress. She must be at least thirty-five years old. In spit of this, she often appears on the stage as a young girl. Jennifer will have to take part in a new play soon. This time, she will be a girl of seventeen. In the p…

上午在网上看到了斯考特·杨(Scott Young)的快速学习方法,感觉很受鼓舞. 现在已经读研究生了,可是发现自己自从上大学以来到现在,发现自己的学习方法有很大的问题. 我是个特别喜欢读书的人,在大学四年中,读了很多很多书籍,可是到现在,似乎都全部忘记了,书中的知识一点都没有记住,真感觉花费那么多时间,看了那么多的书,可是没有一本是自己记得牢的.我之前也一直在反思这个问题,是不是我哪里出了问题,可是人的思想习惯总是习惯于呆在惰性区域.我之前也试图做过改正,但是都没有坚持下来,今天看了斯考特·杨…

一个 m x n 的Young氏矩阵是指,每一行数据都是从左到右排好序,每一列的数据也都是从上到下排好序.其中也可能存在一些INF的数据,表示不存在的元素,一个mxn的Young氏矩阵最多用来存放 r <= mn个元素. 详细见<算导>P.83 Young氏矩阵类似于堆的结构,主要实现的API包括以下: 1. void insert(int x) 功能:将一个元素x插入到矩阵中,复杂度O(m+n) 算法过程: 1) 判断矩阵是否为Full 2) 如果不为Full,插入元素到矩阵的右下角(…

1157. Young Tiler Time limit: 1.0 secondMemory limit: 64 MB One young boy had many-many identical square tiles. He loved putting all his tiles to form a rectangle more, than anything in the world — he has learned the number of all rectangles he can f…

这题利用二叉堆维持堆性质的办法来维持Young氏矩阵的性质,题目提示中写得很清楚,不过确实容易转不过弯来. a,b两问很简单.直接看c小问: 按照Young氏矩阵的性质,最小值肯定在左上角取得,问题在于取出最小值后如何保持矩阵的性质.可以参照max_heapify中的做法,先取出最小值,然后将矩阵左上角置为最大值,这样左上角处的元素必然导致Young氏矩阵的性质违背,于是考虑该元素右边的元素和该元素下边的元素,问题是该与右边元素交换还是与下边元素交换呢?可以发现,如果与T(右)和T(下)中较小的…

Description Mr. Young wishes to take a picture of his class. The students will stand in rows with each row no longer than the row behind it and the left ends of the rows aligned. For instance, 12 students could be arranged in rows (from back to front…

The Sorrows of Young Werther J.W. von Goethe Thomas Carlyle and R.D. Boylan Edited by Nathen HaskellDole PREFACE I have carefully collected whatever I have been able to learnof the story of poor Werther, and here present it to you , knowing thatyou w…

 Young Table Time Limit:2000MS     Memory Limit:262144KB     64bit IO Format:%I64d & %I64u Submit Status Practice CodeForces 237B Appoint description:  System Crawler  (2016-04-26) Description You've got table a, consisting of n rows, numbered from 1…

Young tableaus  这是 Introduction_to_algorithms一个 路学校运动, 我也难倒,互联网没有找到现有的应答. 今天 python 代码贴,供你参考. #! /usr/bin/python """ young tableau    m x n matrix """ import sys class element():     def __init__(self, x, y):         self.x =…

1    问题源起 上游系统通过公司rpc框架调用我们系统接口超时(默认超时时间为100ms)数量从50次/分突然上涨到2000次/分,在发生变化时间段里我们的系统也没有做过代码变更,但上游系统的调用确发生了变化.由于处于主要链路上,sre同学找过来询问原因,所以开始了问题排查. 2    问题初步定位 排查rpc超时的基本思路是这样的: 1)        服务端处理确实超时 2)        服务端或者客户端由于某种原因卡住 a)         磁盘清理 b)        tr线程池…

From: Donald Knuth - My advice to young people (93/97) 译者: 李秋豪 原文 Donald Knuth (b. 1938), American computing pioneer, is known for his greatly influential multi-volume work, 'The Art of Computer Programming', his novel 'Surreal Numbers', his inventio…

Somehow, it seems the love I knew was always the most destructive kind 不知为何,我经历的爱情总是最具毁灭性的的那种 Yesterday when I was young 昨日当我年少轻狂 The taste of life was sweet 生命的滋味是甜的 As rain upon my tongue 就如舌尖上的雨露 I teased at life as if it were a foolish game 我戏弄生命…

Exercise may protect the brain from disease and dementia as we age, but the mechanisms behind its benefits are still murky. ISTOCK.COM/EMIRMEMEDOVSKI How does exercise keep your brain young? By Kelly ServickSep. 6, 2018 , 2:00 PM Stay active; age gra…

原文链接http://www.cnblogs.com/zhouzhendong/p/8934377.html 题目传送门 - ARC080 E - Young Maids 题意 给定一个长度为$n$的序列$p$,$p$为$1\cdots n$的一个排列. 现在让你每次取出序列$p$的相邻两个,然后把他们按照原来的顺序放进序列$q$的最前面.注意每次这样的操作之后,$p$序列的剩余两半都会合并起来. 不断进行上述操作,直到$p$为空. 最小化序列$q$的字典序,并输出序列$q$. $n\leq 2…

Description Mr. Young wishes to take a picture of his class. The students will stand in rows with each row no longer than the row behind it and the left ends of the rows aligned. For instance, 12 students could be arranged in rows (from back to front…

B. Young Photographer 题目连接: http://codeforces.com/contest/14/problem/B Description Among other things, Bob is keen on photography. Especially he likes to take pictures of sportsmen. That was the reason why he placed himself in position x0 of a long s…

Young Maids Time Limit: 50 Sec  Memory Limit: 512 MB Description 给定一个排列,每次选出相邻的两个放在队头,要求字典序最小. Input 第一行一个整数n,第二行n个数表示这个排列. Output n个数表示答案. Sample Input 8 4 6 3 2 8 5 7 1 Sample Output 3 1 2 7 4 6 8 5 HINT n%2=0,2 <= n <= 2e5 Solution 倒着考虑. 我们维护一个小根…

2483: Pku2279 Mr. Young's Picture Permutations Time Limit: 1 Sec  Memory Limit: 128 MB Description   Mr. Young wishes to take a picture of his class. The students will stand in rows with each row no longer than the row behind it and the left ends of…

地址:http://arc080.contest.atcoder.jp/tasks/arc080_c 题目: E - Young Maids Time limit : 2sec / Memory limit : 256MB Score : 800 points Problem Statement Let N be a positive even number. We have a permutation of (1,2,…,N), p=(p1,p2,…,pN). Snuke is constru…

POJ2279 Mr Young's Picture Permutations 描述: 有N个学生合影,站成左对齐的k排,每行分别有N1,N2…NK个人,第一排站最后,第k排站之前.学生身高依次是1…N.在合影时候要求每一排从左到右递减,每一列从后面到前也递减,一共有多少总方案输入每组测试数据包含两行.第一行给出行数k. 第二行包含从后到前(n1,n2,…,nk)的行的长度,作为由单个空格分隔的十进制整数. 问题数据以0结束. N<=30, k<=5; 输出 输出每组数据的方案数 样例输入13…

关于jvm内存代,看到这篇文章,转发下 链接地址 ---多谢 虚拟机中的共划分为三个代:年轻代(Young Generation).老年代(Old Generation)和持久代(Permanent Generation).其中持久代主要存放的是Java类的类信息,与垃圾收集要收集的Java对象关系不大.年轻代和年老代的划分是对垃圾收集影响比较大的. 年轻代: 所有新生成的对象首先都是放在年轻代的.年轻代的目标就是尽可能快速的收集掉那些生命周期短的对象.年轻代分三个区.一个Eden区,两个Sur…

In the past 7.5 years I have supervised over a dozen programming interns at Ronimo and have seen hundreds of portfolios of students and graduates. In almost all of those I saw the same things that they needed to learn. One might expect that I think t…

E - Young Maids Time limit : 2sec / Memory limit : 256MB Score : 800 points Problem Statement Let N be a positive even number. We have a permutation of (1,2,…,N), p=(p1,p2,…,pN). Snuke is constructing another permutation of (1,2,…,N), q, following th…

[题解]POJ2279 Mr.Young′s Picture Permutations dp 钦定从小往大放,然后直接dp. \(dp(t1,t2,t3,t4,t5)\)代表每一行多少人,判断边界就能dp. 然后你发现\(30^5\)开不下,但是你仔细观察由于它保证\(\sum < 30\)所以你只用开\(30^5 \div 5!\)就好了. 具体为什么我相信你会 //@winlere #include<iostream> #include<cstring> #include…

Catch the moments of your life. Catch them while you're young and quick.趁你还年轻利落,把握住生活中的美好瞬间吧!…

World-renowned British physicist Stephen Hawking, who sought to understand a range of cosmic topics from the beginning of the universe to the intricacies of black holes, died Wednesday at age 76.A family spokesman said he died peacefully at his home…

丹棱君有话说:一年一度激动人心的骇客马拉松大会结束了!这场内部创意大比拼硕果累累,丹棱君准备好了 6 组 Cool 骇客的别 Young 作品——沉浸式销售工具如何能守得“云”开见月明?“骇客马拉松超人”与团队为你“室内导航”,让你从此和迷路 say goodbye:武装你的碎片化“阅读”,利用智能语音有高招儿:二维平面不生动?那就让 HoloLens 把 PowerPoint “立”起来……还有两组项目是啥?小伙伴们快去探索吧~ 你是哪一型极客?文末为你揭晓获奖的三有极客名单~ 微软全球 On…