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…

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…

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,…

/* 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]}…

question:假设有一种货币,它有面值为1分.2分.5分和1角的硬币,最少需要多少个硬币来找出K分钱的零钱.按照贪婪法的思想,需要不断地使用面值最大的硬币.如果找零的值小于最大的硬币值,则尝试第二大的硬币,依次类推. /*程序的版权和版本声明部分: **从<C++程序设计思想与方法>(作者:翁惠玉)P61转载 */ #include <iostream> using namespace std; #define ONEFEN 1 #define TWOFEN 2 #define…

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…

860. 柠檬水找零  显示英文描述 我的提交返回竞赛   用户通过次数187 用户尝试次数211 通过次数195 提交次数437 题目难度Easy 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…