E. Change-free
Student Arseny likes to plan his life for n days ahead. He visits a canteen every day and he has already decided what he will order in each of the following n days. Prices in the canteen do not change and that means Arseny will spend ci rubles during the i-th day.
There are 1-ruble coins and 100-ruble notes in circulation. At this moment, Arseny has m coins and a sufficiently large amount of notes (you can assume that he has an infinite amount of them). Arseny loves modern technologies, so he uses his credit card everywhere except the canteen, but he has to pay in cash in the canteen because it does not accept cards.
Cashier always asks the student to pay change-free. However, it's not always possible, but Arseny tries to minimize the dissatisfaction of the cashier. Cashier's dissatisfaction for each of the days is determined by the total amount of notes and coins in the change. To be precise, if the cashier gives Arseny x notes and coins on the i-th day, his dissatisfaction for this day equals x·wi. Cashier always gives change using as little coins and notes as possible, he always has enough of them to be able to do this.
"Caution! Angry cashier"
Arseny wants to pay in such a way that the total dissatisfaction of the cashier for n days would be as small as possible. Help him to find out how he needs to pay in each of the n days!
Note that Arseny always has enough money to pay, because he has an infinite amount of notes. Arseny can use notes and coins he received in change during any of the following days.
The first line contains two integers n and m (1 ≤ n ≤ 105, 0 ≤ m ≤ 109) — the amount of days Arseny planned his actions for and the amount of coins he currently has.
The second line contains a sequence of integers c1, c2, ..., cn (1 ≤ ci ≤ 105) — the amounts of money in rubles which Arseny is going to spend for each of the following days.
The third line contains a sequence of integers w1, w2, ..., wn (1 ≤ wi ≤ 105) — the cashier's dissatisfaction coefficients for each of the following days.
In the first line print one integer — minimum possible total dissatisfaction of the cashier.
Then print n lines, the i-th of then should contain two numbers — the amount of notes and the amount of coins which Arseny should use to pay in the canteen on the i-th day.
Of course, the total amount of money Arseny gives to the casher in any of the days should be no less than the amount of money he has planned to spend. It also shouldn't exceed 106 rubles: Arseny never carries large sums of money with him.
If there are multiple answers, print any of them.
5 42
117 71 150 243 200
1 1 1 1 1
79
1 17
1 0
2 0
2 43
2 0
3 0
100 50 50
1 3 2
150
1 0
1 0
0 50
5 42
117 71 150 243 200
5 4 3 2 1
230
1 17
1 0
1 50
3 0
2 0
发自内心的感觉要是我的水平是x,现在这个题的水平就是x+1,应该多做这样的题,我的水平才能变成x+1;
废话不多说,现在我们来讲一下这个问题:
假设我们现在的到x的最优解为sum,这个是最小的东西,然后我们添加一个thing,这个thing的带来的bad权值就是(100-a[i])*w[i];
要是现在我还有money我他妈的肯定要买的对吗? 那么现在我的value是不增加的,要是我没有钱没这个东西,假设我们前面的就是最优的解
那么我们怎么确保加不加这个东西啊,或者说加了这个东西要去掉或者增加前面的那些东西,这是我们要解决的两个问题,
问题1: 我们加不加这个东西,要是前面的最小bad权值<当前的bad权值我们一定要加上这个东西的,要是不加的话结果肯定不是最优的,那么我们现在 要做的就是决定去掉哪个东西,我们去掉的肯定是最小的bad权值对应的编号,这是很显然的,但是我们现在又要思考去掉了这个东西,我们剩下的钱还能不能买前面的其他的东西了,答案是肯定不能买的,这个地方逻辑水平还是很高的,
假设当前的thing需要的coin为x,前面的最小的bad去掉后,我们现在有的coin=100+原来的coin1;
coin1<x 要是等于的话就能买了。 买了x后我们还有100+coin1-x; 这个东西肯定是小于100的那么说之前不能买的东西贡献的值为y
就相当于100-它需要的coin , y+coin2<x 现在我们有100+coin2+y-x;我们要是能买前面的东西的话,我们最少的钱要是100-y
100+coin2+y-x<100-y
E. Change-free的更多相关文章
- 代码的坏味道(10)——发散式变化(Divergent Change)
坏味道--发散式变化(Divergent Change) 发散式变化(Divergent Change) 类似于 霰弹式修改(Shotgun Surgery) ,但实际上完全不同.发散式变化(Dive ...
- [LeetCode] Coin Change 硬币找零
You are given coins of different denominations and a total amount of money amount. Write a function ...
- input事件与change事件
输入框的change事件: 必须等到输入框失去焦点的时候才会触发,鼠标在空白的地方点一下: 输入框的input事件: 在输入内容变化的同时,实时的触发,不需要等到失去焦点.
- Change the Target Recovery Time of a Database (SQL Server) 间接-checkpoints flushcache flushcache-message
Change the Target Recovery Time of a Database (SQL Server) 间接checkpoints flushcache flushcache-mes ...
- Change Line Type in OpenCascade
Change Line Type in OpenCascade eryar@163.com 关键字KeyWords:OpenCascade,Line Aspect, Line Type 在OpenCa ...
- 华硕笔记本U盘启动系统/WinPE报错。Windows failed to start. A Recent hardware or software change might be the cause.
最近在整一台华硕笔记本,大概有5年寿命了吧,质量还行,由于系统出了问题,打算用自制U盘WinPE进去修复一下.按照个人经验,在主板设置里启用了USB启动选项,并且设置USB启动顺序为第一个,可是进系统 ...
- You cannot change a partition into an extended one or vice versa Delete it first
在Linux扩展LVM时,使用fdisk创建分区时,在磁盘上新建扩展分区(逻辑分区),修改分区格式,指定分区类型为8e时,报错"You cannot change a partition i ...
- [WPF系列]基础 Listening to Dependency Property change notifications of a given Element
I want to share this great post from Anoop that shows a easy way to add a notification system to dep ...
- 鼠标的change事件
原本想着在<input>输入输入框中添加change事件,来实现对输入内容的限定. 当人们在使用时跟多的会直接去点击完成.所以完成按钮的点击事件会和change事件产生 冲突,所以我把验证 ...
- Fold Change和t分布
基因表达谱数据 基因表达谱可以用一个矩阵来表示,每一行代表一个基因,每一列代表一个样本(如图1).所有基因的表达谱数据在“gene_exp.txt”文件中存储,第一列为基因的entrez geneid ...
随机推荐
- Java对象嵌套
1.基础篇 Java面向对象东西太深奥了,本文只是发表一点自己的见解. 首先 举个栗子!! 汽车, 我们先给汽车定义个轮胎类 有一个属性名 轮胎尺寸 /** *定义一个轮胎类 */ class Wh ...
- Thinking in scala (8)---- 乘幂计算
递归的方式: b^n = (b^(n/2))^2 若n是偶数 b^n = b*(b^(n-1)) 若n是奇数 迭代的方式 product:存储中间结果,初始化为1 b^n = (b^2)^(n/2) ...
- Chapter5 – 碰撞检测
主人公能够放子弹了,虽然子弹看起来很美,但是怎么样来打到妖怪? 在这一章我们介绍一下最简单的碰撞检测方法去实现它. 首先第一个,我们有必要保存每个妖怪和子弹的指针,来够追踪他们的位置. 在这个游戏中我 ...
- AngularJS 讲解,四 Directive
AngularJS Directive 自定义指令(我最喜欢AngularJs的功能之一) 一:什么时候我们会用到directive 1.使html更具语义化,不用深入了解研究代码的逻辑便可知道大致 ...
- iOS 导航栏不可点击
self.navigationController.navigationBar.userInteractionEnabled = NO;
- 使用python爬取东方财富网机构调研数据
最近有一个需求,需要爬取东方财富网的机构调研数据.数据所在的网页地址为: 机构调研 网页如下所示: 可见数据共有8464页,此处不能直接使用scrapy爬虫进行爬取,因为点击下一页时,浏览器只是发起了 ...
- 如何在Eclipse下安装myeclipse插件
来自http://www.blogjava.net/show911/archive/2008/04/27/86284.html 下载myeclipse插件 支持eclipse3.1.x, 具体安装步骤 ...
- 创建 Web 前端开发环境(node和npm)
Web 前端开发涉及多种工具,这里将常用工具的安装和配置进行说明,提供了详细的说明,为后继的开发创建一个坚实的基础. 本文介绍的工具有:NodeJS, NPM, Bower, Git 和 Grunt. ...
- iOS 设置控件圆角、文字、字体
以按钮为例: UIButton btn = [UIButton new]; btn.layer.masksToBounds = YES; btn.layer.cornerRadius = 10.0; ...
- 连锁不平衡LD
http://wenku.baidu.com/link?url=Fr_C7J5F4KusZTpZJUfuVfh4Bpyb9BAY7IQhWAOYirQJW0Oz-X3fI5r41aPHiQR8ENn9 ...