B. Anatoly and Cockroaches time limit per test:1 second memory limit per test:256 megabytes input:standard input output:standard output Anatoly lives in the university dorm as many other students do. As you know, cockroaches are also living there tog…

B. Anatoly and Cockroaches 题目连接: http://codeforces.com/contest/719/problem/B Description Anatoly lives in the university dorm as many other students do. As you know, cockroaches are also living there together with students. Cockroaches might be of tw…

B. Anatoly and Cockroaches time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Anatoly lives in the university dorm as many other students do. As you know, cockroaches are also living there tog…

题目链接:http://codeforces.com/contest/719/problem/B B. Anatoly and Cockroaches time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Anatoly lives in the university dorm as many other students do. A…

Description Anatoly lives in the university dorm as many other students do. As you know, cockroaches are also living there together with students. Cockroaches might be of two colors: black and red. There are n cockroaches living in Anatoly's room. An…

Anatoly lives in the university dorm as many other students do. As you know, cockroaches are also living there together with students. Cockroaches might be of two colors: black and red. There are n cockroaches living in Anatoly's room. Anatoly just m…

time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Anatoly lives in the university dorm as many other students do. As you know, cockroaches are also living there together with students. Cockro…

题目链接:http://codeforces.com/problemset/problem/719/B 题目大意: 有一队蟑螂用字符串表示,有黑色 ‘b’ 和红色 'r' 两种颜色,你想使这队蟑螂颜色分布是交叉的,你有两种做法: 一次调整任意两个交换位置,或者一次给一个蟑螂染色 问,最少操作多少次可以使得蟑螂的颜色分布是交叉的. 解题思路: 刚看完题,就想到用一个字符接受第一个蟑螂的颜色[下标从0开始],for 如果 是奇数则 应该与第一蟑螂的颜色不同,如果相同 ++c1,如果是偶数,就应该与第…

题目大意:有一排蟑螂,只有r和b两种颜色,你可以交换任意两只蟑螂的位置,或涂改一个蟑螂的颜色,使其变成r和b交互排列的形式.问做少的操作次数. 题目思路:更改后的队列只有两种形式:长度为n以r开头:长度为n以b开头.与初始串进行比较并统计改变次数记作ans,算出必须进行的涂色操作的次数step,我们可以把交换两只不同颜色的蟑螂的位置看做进行了两次涂改操作,其次数为(ans-step). 那么得出改变为模板串的最小操作次数为:step+(ans-step)/2; #include<iostream…

题意:给定一个序列,让你用最少的操作把它变成交替的,操作有两种,任意交换两种,再就是把一种变成另一种. 析:贪心,策略是分别从br开始和rb开始然后取最优,先交换,交换是最优的,不行再变色. 代码如下: #pragma comment(linker, "/STACK:1024000000,1024000000") #include <cstdio> #include <string> #include <cstdlib> #include <c…

Codeforces Round #371 (Div. 2) A. Meeting of Old Friends |B. Filya and Homework A. Meeting of Old Friends  模拟 #include <iostream> #include <cstdio> #include <algorithm> #include <cstring> using namespace std; typedef long long ll;…

A. Vitya in the Countryside time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Every summer Vitya comes to visit his grandmother in the countryside. This summer, he got a huge wart. Every gran…

Codeforces Round #373 (Div. 2) A. Vitya in the Countryside 这回做的好差啊,a想不到被hack的数据,b又没有想到正确的思维 = = [题目链接]A. Vitya in the Countryside [题目类型]模拟 &题意: 一个月30天,月亮的大小分别是上面所说的规律,求输入的下一天是变大还是变小 &题解: 我想的是首先n==1的时候,我想的是一定-1,但这样是错的,因为当那一个数是15或0时,那么答案就不是-1了. 最后,只…

用了两场比赛上Div 1感觉自己好腊鸡的说...以下是这两场比赛的部分题解(不得不说有个黄学长来抱大腿还是非常爽的) Round #372 : Div 2 A:Crazy Computer 题意:给定N个输入和一个时间长度M,每次输入屏幕上增加一个字符,若两个输入间隔大于M则屏幕上的字符会被清空,问结束时屏幕上还有多少个字符 直接模拟没有什么好说的 代码: #include<cstdio> #include<iostream> #include<cstring> #in…

A - Complete the Word(暴力) Description ZS the Coder loves to read the dictionary. He thinks that a word is nice if there exists a substring (contiguous segment of letters) of it of length 26 where each letter of English alphabet appears exactly once.…

每周日更新 2016.05.29 UVa中国麻将(Chinese Mahjong,Uva 11210) UVa新汉诺塔问题(A Different Task,Uva 10795) NOIP2012同余方程 NOIP2007统计数字 NOIP2013火柴排队 NOIP2013花匠 2016.06.05 Uva 组装电脑 12124 - Assemble Uva 派 (Pie,NWERC 2006,LA 3635) 2016.06.19 Uva 网络(Network,Seoul 2007,LA 39…

A. Vitya in the Countryside time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Every summer Vitya comes to visit his grandmother in the countryside. This summer, he got a huge wart. Every gran…

B. Anatoly and Cockroaches Anatoly lives in the university dorm as many other students do. As you know, cockroaches are also living there together with students. Cockroaches might be of two colors: black and red. There are n cockroaches living in Ana…

I. Cockroaches time limit per test6. s memory limit per test256 MB inputstandard input outputstandard output There are N cockroaches in the field. Cockroach i is located at coordinate (xi,yi). No two cockroaches are located at the same spot. Boss Luo…

先上题目: 1213. Cockroaches! Time limit: 1.0 secondMemory limit: 64 MB It's well-known that the most tenacious of life species on the Earth are cockroaches. They live everywhere if only there in food. And as far as they are unpretentious in food you can…

算法假了,我想的是通过枚举x,删除y的影响,这样答案第一个是没有任何问题的,但是第二个会算重复. 因为我枚举每一个x的时候,得到的y,而算另外一个x的时候,可能已经通过其他的点选到了这个点y这就有点麻烦了.暂时没想好怎么处理.…

Description Anatoly lives in the university dorm as many other students do. As you know, cockroaches are also living there together with students. Cockroaches might be of two colors: black and red. There are n cockroaches living in Anatoly's room. An…

今天一个同事说在一个生产库执行某个存储过程,遇到了错误: Fatal error 605 occurred at jul 29 2014 我试着执行该存储过程,结果出现下面错误,每次执行该存储过程,得到的错误内容都不一样(page变化,还有就是allocation unit)变化 消息 605,级别 21,状态 3,过程 usp_xxxxxxxxx,第 228 行 Attempt to fetch logical page (7:121808) in database 2 failed. It…

People were running up to us, and screaming and hitting us, and throwing stones and eggs. "They were kicking us, spitting at us, swearing at us.Reenex 好唔好" His captors claimed they were marching him through parts of the city that had been bombed…

Problem Description One day, Lin Ji wake up in the morning and found that his pethamster escaped. He searched in the room but didn’t find the hamster. He tried to use some cheese to trap the hamster. He put the cheese trap in his room and waited for…

题目描述 Farmer John suffered a terrible loss when giant Australian cockroaches ate the entirety of his hay inventory, leaving him with nothing to feed the cows. He hitched up his wagon with capacity C (1 <= C <= 50,000) cubic units and sauntered over t…

本篇主要是学习Moment.js.类库源代码如下: 2.4版本. //! moment.js //! version : 2.4.0 //! authors : Tim Wood, Iskren Chernev, Moment.js contributors //! license : MIT //! momentjs.com (function (undefined) { /************************************ Constants *************…

http://acm.hdu.edu.cn/showproblem.php?pid=4707 Pet Time Limit: 4000/2000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Problem Description One day, Lin Ji wake up in the morning and found that his pethamster escaped. He searched in th…

Pet Time Limit: 4000/2000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 2248    Accepted Submission(s): 1098 Problem Description One day, Lin Ji wake up in the morning and found that his pethamster escaped. He sea…

Memcached 是一个高性能的分布式内存对象缓存系统,用于动态Web应用以减轻数据库负载.它通过在内存中缓存数据和对象来减少读取数据库的次数,从而提供动态.数据库驱动网站的速度.Memcached基于一个存储键/值对的hashmap.其守护进程(daemon )是用C写的,但是客户端可以用任何语言来编写,并通过memcached协议与守护进程通信. memcached是一套分布式的快取系统,当初是Danga Interactive为了LiveJournal所发展的,但目前被许多软件(如Med…