Description 约翰带着 N 头奶牛在超市买东西,现在他们正在排队付钱,排在第 i 个位置的奶牛需要支付 Ci 元.今天说好所有东西都是约翰请客的,但直到付账的时候,约翰才意识到自己没带钱,身上只有 K 张消费卡,第 i 张卡里有 Vi 元余额. 问题是,这些消费卡都是一次性的,它们可以被收银机读取,但如果卡一旦离开了收银机,卡里 的余额就会归零,而且超市也不负责找零!奶牛的队伍很长,不可能再调整她们的位置了,所以一张 卡只能支付一段连在一起的账单.而且,一张账单只能用一张消费卡支付,超

You are given coins of different denominations and a total amount of money amount. Write a function to compute the fewest number of coins that you need to make up that amount. If that amount of money cannot be made up by any combination of the coins,

You are given coins of different denominations and a total amount of money amount. Write a function to compute the fewest number of coins that you need to make up that amount. If that amount of money cannot be made up by any combination of the coins,

You are given coins of different denominations and a total amount of money. Write a function to compute the number of combinations that make up that amount. You may assume that you have infinite number of each kind of coin. Note: You can assume that

题目描述 Farmer John is at the market to purchase supplies for his farm. He has in his pocket K coins (1 <= K <= 16), each with value in the range 1..100,000,000. FJ would like to make a sequence of N purchases (1 <= N <= 100,000), where the ith p

[USACO13NOV]没有找零No Change 题目链接 https://www.luogu.org/problemnew/show/3092 做题背景 FJ不是一个合格的消费者,不知法懂法用法,不会拿起法律的武器维护消费者权益 做法 本题涉及的知识点:状态压缩,动态规划,二分答案. 注意物品是依次购买 首先是状态压缩: 压什么?我们注意到k<=16,那么就是压硬币使用集合. 然后是动态规划: 怎么设状态?设dp[i]表示我们选硬币集合i(状压)从一号物品开始最多能买的物品数. 怎么转移?从

At a lemonade stand, each lemonade costs $5.  Customers are standing in a queue to buy from you, and order one at a time (in the order specified by bills). Each customer will only buy one lemonade and pay with either a $5, $10, or $20 bill.  You must

At a lemonade stand, each lemonade costs $5. Customers are standing in a queue to buy from you, and order one at a time (in the order specified by bills). Each customer will only buy one lemonade and pay with either a $5, $10, or $20 bill.  You must

题目描述 Farmer John is at the market to purchase supplies for his farm. He has in his pocket K coins (1 <= K <= 16), each with value in the range 1..100,000,000. FJ would like to make a sequence of N purchases (1 <= N <= 100,000), where the ith p

P3092 [USACO13NOV]没有找零No Change 题目描述 Farmer John is at the market to purchase supplies for his farm. He has in his pocket K coins (1 <= K <= 16), each with value in the range 1..100,000,000. FJ would like to make a sequence of N purchases (1 <= N

题目描述 Farmer John is at the market to purchase supplies for his farm. He has in his pocket K coins (1 <= K <= 16), each with value in the range 1..100,000,000. FJ would like to make a sequence of N purchases (1 <= N <= 100,000), where the ith p

这个题有点意思,其实不是特别难,但是不太好想...中间用二分找最大的可买长度就行了. 题干: 题目描述 Farmer John <= K <= ), each with value ..,,. FJ would like to make a sequence of N purchases ( <= N <= ,), <= c(i) <= ,). As he makes this sequence of purchases, he can periodically sto

问题 该文章的最新版本已迁移至个人博客[比特飞],单击链接 https://www.byteflying.com/archives/4036 访问. 在柠檬水摊上,每一杯柠檬水的售价为 5 美元. 顾客排队购买你的产品,(按账单 bills 支付的顺序)一次购买一杯. 每位顾客只买一杯柠檬水,然后向你付 5 美元.10 美元或 20 美元.你必须给每个顾客正确找零,也就是说净交易是每位顾客向你支付 5 美元. 注意,一开始你手头没有任何零钱. 如果你能给每位顾客正确找零,返回 true ,否则返

题目传送门 可能是我退役/NOIP前做的最后一道状压... 题目大意:给你\(k\)个硬币,FJ想按顺序买\(n\)个物品,但是不能找零,问你最后最多剩下多少钱. 注意到\(k<=16\),提示状压.开始设计的状态是\(f[i]\)表示在状态\(i\)下最多剩的钱数,后来发现不好搞因为可能有无解的情况.这种情况我们不妨把状态设计的再"退化"一点,也就是不那么贴近最终的结果,只是一个中间的部分.设\(f[i]\)为在状态\(i\)下,最多能购买的物品数. 因为是按顺序购买的,所以有

这是悦乐书的第331次更新,第355篇原创 01 看题和准备 今天介绍的是LeetCode算法题中Easy级别的第201题(顺位题号是860).在柠檬水摊上,每杯柠檬水的价格为5美元.客户站在队列中向您购买,一次只买一杯(按照账单数组指定的顺序). 每位顾客只会购买一瓶柠檬水,并以5美元,10美元或20美元的钞票付款.您必须向每个客户提供正确的找零,以便净交易是客户支付5美元.请注意,您最初没有任何零钱.当且仅当您能为每位客户提供正确的找零时,才返回true.例如: 输入:[5,5,5,10,2

在柠檬水摊上,每一杯柠檬水的售价为 5 美元. 顾客排队购买你的产品,(按账单 bills 支付的顺序)一次购买一杯. 每位顾客只买一杯柠檬水,然后向你付 5 美元.10 美元或 20 美元.你必须给每个顾客正确找零,也就是说净交易是每位顾客向你支付 5 美元. 注意,一开始你手头没有任何零钱. 如果你能给每位顾客正确找零,返回 true ,否则返回 false . 示例 1: 输入:[5,5,5,10,20] 输出:true 解释: 前 3 位顾客那里,我们按顺序收取 3 张 5 美元的钞票.

Q: 既是多重背包, 还是找零问题, 怎么处理? A: 题意理解有误, 店主支付的硬币没有限制, 不占额度, 所以此题不比 1252 难多少 Description Farmer John has gone to town to buy some farm supplies. Being a very efficient man, he always pays for his goods in such a way that the smallest number of coins change

Description On January 1st 2002, The Netherlands, and several other European countries abandoned their national currency in favour of the Euro. This changed the ease of paying, and not just internationally. A student buying a 68 guilder book before J

/* 题意:给你不同面额的硬币(每种硬币无限多),需要找零的面值是T,用这些硬币进行找零, 如果T恰好能被找零,输出最少需要的硬币的数目!否则请输出剩下钱数最少的找零方案中的最少硬币数! 思路:转换成完全背包的问题! */ #include<iostream> #include<cstring> #include<cstdio> #include<algorithm> #define INF 0x3f3f3f3f using namespace std; ]

题目大概的意思就是:小强用硬币买东西,硬币有N种,面值为Vi,店家有各种硬币都有无限个,而小强只有Ci个(分别对应Vi) 问最小交易硬币数,就是一个有找零的背包问题啦. 我的上一篇博客跟这hdu3591的类型非常非常接近,所以我很快就写完,并且很快地WA了无数次. 后来很苦恼,看看别人写的代码,他们的思想大概是这样子.用dp2去记载找零,就是dp2[i]=min{dp2[i],dp2[i-V]+1 } V为要付的总款 之后再从V到INF处得到ans=min{ans,dp[i]+dp2[i-V]}