硬币找零 时间限制:1000 ms  |  内存限制:65535 KB 难度:3   描述 在现实生活中,我们经常遇到硬币找零的问题,例如,在发工资时,财务人员就需要计算最少的找零硬币数,以便他们能从银行拿回最少的硬币数,并保证能用这些硬币发工资. 我们应该注意到,人民币的硬币系统是 100,50,20,10,5,2,1,0.5,0.2,0.1,0.05, 0.02,0.01 元,采用这些硬币我们可以对任何一个工资数用贪心算法求出其最少硬币数.  但不幸的是: 我们可能没有这样一种好的硬币系统,…

题目:硬币找零 题目介绍:现在有面值1.3.5元三种硬币无限个,问组成n元的硬币的最小数目? 分析:现在假设n=10,画出状态分布图: 硬币编号 硬币面值p 1 1 2 3 3 5 编号i/n总数j 0 1 2 3 4 5 6 7 8 9 10 1 0 1 2 3 4 5 6 7 8 9 10 2 0 1 2 1 2 3 2 3 4 3 4 3 0 1 2 1 2 1 2 3 2 3 2 设所需硬币最小数目为m,则可以看出m[ i ][  j ]=m[ i-1 ][  j-k*p[ i ]] +…

题目描述 Description 在现实生活中,我们经常遇到硬币找零的问题,例如,在发工资时,财务人员就需要计算最少的找零硬币数,以便他们能从银行拿回最少的硬币数,并保证能用这些硬币发工资. 我们应该注意到,人民币的硬币系统是100,50,20,10,5,2,1,0.5,0.2,0.1,0.05,0.02,0.01 元,采用这些硬币我们可以对任何一个工资数用贪心算法求出其最少硬币数.但不幸的是:我们可能没有这样一种好的硬币系统,因此用贪心算法不能求出最少的硬币数,甚至有些金钱总数还不能用这些硬币…

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…

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; ]…

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…

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…

给定钱币的面值 1.5.10.25 需要找给客户 36 最少找零数为: 1.10.25 function MinCoinChange(coins){ var coins = coins; var cache = {}; this.makeChange = function(amount){ var me = this; if(!amount){ return []; } if(cache[amount]){ return cache[amount]; } var min = [],newMin,…

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]}…

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…

问题 有面额10元.5元.2元.1元的硬币,数量分别为3个.5个.7个.12个.现在需要给顾客找零16元,要求硬币的个数最少,应该如何找零?或者指出该问题无解. 分析 元素--状态空间分析大法:四种面额的硬币看作4个元素,对应的数目看作各自的状态空间,遍历状态空间,其它的事情交给剪枝函数. 解的长度固定:4 解的编码:(x1,x2,x3,x4) 其中x1∈[0,1,2,3], x2∈[0,1,2,3,4,5], x3∈[0,1,2,...,7], x4∈[0,1,2,...,12] 求最优解,增…

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…

目录 1 问题描述 2 解决方案 2.1 动态规划法   1 问题描述 现需找零金额为n,则最少需要用多少面值为d1 < d2 < d3 < ... < dm的硬币?(PS:假设这m种面值d1 < d2 < d3 < ... < dm的硬币,其中d1 = 1,且每种硬币数量无限可得) 2 解决方案 2.1 动态规划法 本文编码思想参考自<算法设计与分析基础>第三版,具体讲解如下: 具体代码如下: package com.liuzhen.chapt…

没有找零 状压dp 约翰到商场购物,他的钱包里有K(1 <= K <= 16)个硬币,面值的范围是1..100,000,000.约翰想按顺序买 N个物品(1 <= N <= 100,000),第i个物品需要花费c(i)块钱,(1 <= c(i) <= 10,000).在依次进行的购买N个物品的过程中,约翰可以随时停下来付款,每次付款只用一个硬币,支付购买的内容是从上一次支付后开始到现在的这些所有物品(前提是该硬币足以支付这些物品的费用).不幸的是,商场的收银机坏了,如果…

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…

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…

给定要找回的总钱数和硬币的种类,求出找零所需最少的硬币数目. 例如: 总钱数63,硬币种类为25.21.10.5.1,求出最小硬币数 分析: 我们可以先假设只有一种硬币1, 假如总钱数为1,硬币数就为1,总钱数为2,则硬币数为2. 则总钱数n,所需的硬币数就是n个. 以列表形式表示不同总钱数所对应的硬币数目,即: coinUsed = [i for i in range(money + 1)] 依次类推,假如硬币种类不止一种,我们只需要对比对应总钱数时所需硬币数的多少就可以了. 代码如下: de…

1 问题描述 现需找零金额为n,则最少需要用多少面值为d1 < d2 < d3 < - < dm的硬币?(PS:假设这m种面值d1 < d2 < d3 < - < dm的硬币,其中d1 = 1,且每种硬币数量无限可得) 2 解决方案 2.1 动态规划法 本文编码思想参考自<算法设计与分析基础>第三版,具体讲解如下: package com.liuzhen.chapter8; public class ChangeMaking { public v…

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…

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…

人的理想志向往往和他的能力成正比. --约翰逊--  AI 启蒙-无人售货机智能找零算法  [问题区] 你现在是一家无人售货机生产公司的高级程序员,技术经理叫你实现无人售货机智能找零钱的算法,具体需求如下: 当购物者购物后,插入一张满足支付的人民币,售货机可以自动计算出找零的方案,并控制找零模块出钞,现在需要你实现找零算法找出所有的找零方案,供出钞模块选择~ 假设某一时刻零钱有 50元一张,20元2张,10元2张,5元1张,1元8张,某用户随机购买商品(商品价格在1-99元之间)后,他投入一张面…