一道模拟题目 对于所有0 还是 1 我们都可以想象做均为 0 的状态 v[i]表示原来的值 但是对于原来为1的要加上其所在的值作为初始值 然后转化后 a[i] = -v[i]  , 如果原来为0 , 那就直接赋值 我们总是希望将尽可能大的值先加 ,所以将a由大到小排个序 ,  一直加到负数的时候需要考虑这个负数取不取,其实我们最多取一个负数,因为当加了 第一个负数若后面还为负数,那么我们可以将那个负数倒转又加回来即可 但第一个负数取不取也要看它的绝对值是不是比前一个数大,如果大,说明宁可将前一个…

If you want to disable the screen switching, and you don't want tochange your termcap, you can add these lines to your .vimrc: >        :set t_ti= t_te= The default of my terminal tool XShell is screen switching, after editing from vim. If you want t…

Posted by: Margaret Rouse WhatIs.com   Contributor(s): Robert Sturt This definition is part of our Essential Guide: Building SD-WAN architecture into your world   Sponsored News OpenFlow and Enterprise Networks Explained –Dell How to Use a Threat Int…

1156. Two Rounds Time limit: 2.0 secondMemory limit: 64 MB There are two rounds in the Urals Championship. The competitors have to solve N problems on each round. The jury had been working hard and finally managed to prepare 2N problems for the champ…

FJNU 1156 Fat Brother’s Gorehowl(胖哥的血吼) Time Limit: 1000MS   Memory Limit: 257792K [Description] [题目描述] Fat Brother is a Great warrior(战士) and he has a powerful weapons named “Gorehowl”. Firstly it can cause 7 damage points to the other side, but it…

Packet Switching: - In a packet switched network data is transmitted in blocks(packets), typically less than 1KB in length. - Each packet contains a chunk of data and sufficient information for the packet to navigate to its destination and the origin…

http://www.embedded.com/design/embedded/4231326/Taking-advantage-of-the-Cortex-M3-s-pre-emptive-context-switches The ARM Cortex-M3 (CM3) architecture is a 32-bit microcontroller core designed to replace many 8-bit and 16-bit devices by offering faste…

A. Bulbs 题目连接: http://www.codeforces.com/contest/615/problem/A Description Vasya wants to turn on Christmas lights consisting of m bulbs. Initially, all bulbs are turned off. There are n buttons, each of them is connected to some set of bulbs. Vasya…

N*M bulbs 题目连接: http://codeforces.com/contest/510/problem/C Description NM个灯泡排成一片,也就是排成一个NM的矩形,有些开着,有些关着,为了节约用电,你要关上所有灯,但是你又很懒. 刚好有个熊孩纸路过,他刚好要从左上角的灯泡走去右下角的灯泡,然后离开. 但是毕竟熊孩纸,熊孩纸在离开一个灯泡之前,一定会动一下当前开关,也就是开的变关,关的变开. 想问你可不可能关完所有的灯,同时熊孩纸也可以到达右下角的灯泡,然后离开. Inp…

N bulbs Time Limit: 10000/5000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 559    Accepted Submission(s): 298 Problem Description N bulbs are in a row from left to right,some are on, and some are off.The first bu…