题目链接 http://acm.hdu.edu.cn/showproblem.php?pid=2069 题意 有面值1,5,10,25,50的硬币数枚,对于输入的面值n,输出可凑成面值n(且限制总硬笔数小于等于100枚)的方案数.特别的,n=0时方案数=1. 其中,输入n<=250. 思路 DP. 状态 ways[j][i] 表示面值等于j且硬币枚数等于i时的方案数. 初始化时,只需将ways[0][0]=1即可,其他为0: 外层先遍历硬币面值种类,这层遍历的具体顺序不重要,即保证有不重复累加同…

UVA.674 Coin Change (DP) 题意分析 有5种硬币, 面值分别为1.5.10.25.50,现在给出金额,问可以用多少种方式组成该面值. 每种硬币的数量是无限的.典型完全背包. 状态转移方程 dp[j+c[i]] = dp[j] + dp[j+c[i]] 代码总览 /* Title:UVA.674 Author:pengwill Date:2017-2-16 */ #include <iostream> #include <cstdio> #include <…

题目链接:https://leetcode.com/problems/coin-change/ 322. Coin Change My Submissions Question Total Accepted: 15289 Total Submissions: 62250 Difficulty: Medium You are given coins of different denominations and a total amount of money amount. Write a func…

UVA 674  Coin Change  解题报告 题目链接:http://acm.hust.edu.cn/vjudge/contest/view.action?cid=87730#problem/E 题目: Suppose there are 5 types of coins: 50-cent, 25-cent, 10-cent, 5-cent, and 1-cent. We want to make changes with these coins for a given amount o…

Coin Change Time Limit: 1000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 10289    Accepted Submission(s): 3451 Problem Description Suppose there are 5 types of coins: 50-cent, 25-cent, 10-cent, 5-cent, and 1…

题意:有1,5,10,25,50五种硬币,给出一个数字,问又几种凑钱的方式能凑出这个数. 经典的dp题...可以递推也可以记忆化搜索... 我个人比较喜欢记忆化搜索,递推不是很熟练. 记忆化搜索:很白痴的算法,直接交给下一层去算,算完记录下来以免之后重复算. 代码: /* * Author: illuz <iilluzen[at]gmail.com> * Blog: http://blog.csdn.net/hcbbt * File: _uva674.cpp * Create Date: 20…

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,…

Something cost $10.25 and the customer pays with a $20 bill, the program will print out the most efficient "change-breakdown" which is 1 five, 4 ones, and 3quarters. Find the minimum number of coins required to make change for a given sum (given…

C - Coin Change (III) Time Limit:2000MS     Memory Limit:32768KB     64bit IO Format:%lld & %llu Submit Status Practice LightOJ 1233 Description In a strange shop there are n types of coins of value A1, A2 ... An. C1, C2, ... Cn denote the number of…

                                                           Coin Change (II) Time Limit: 1000MS   Memory Limit: 32768KB   64bit IO Format: %lld & %llu [Submit]   [Go Back]   [Status] Description In a strange shop there are n types of coins of value A1…

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…

题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=2069 Coin Change Time Limit: 1000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 23514    Accepted Submission(s): 8250 Problem Description Suppose there are 5 type…

题目链接: Lightoj  1231 - Coin Change (I) 题目描述: 就是有n种硬币,每种硬币有两个属性(价值,数目).问用给定的硬币组成K面值,有多少种方案? 解题思路: 赤果果的多重背包,简单搞一下就好了.席八!烦烦烦.今天绝对是出门刷提前没看黄历,刚开始套了一个多重背包板子,蓝而跑出来的答案并不对,改来改去就错在细节的地方. #include <cmath> #include <cstdio> #include <cstring> #includ…

先上题目: 1232 - Coin Change (II)   PDF (English) Statistics Forum Time Limit: 1 second(s) Memory Limit: 32 MB In a strange shop there are n types of coins of value A1, A2 ... An. You have to find the number of ways you can make K using the coins. You ca…

先上题目: 1231 - Coin Change (I)   PDF (English) Statistics Forum Time Limit: 1 second(s) Memory Limit: 32 MB In a strange shop there are n types of coins of value A1, A2 ... An. C1, C2, ... Cn denote the number of coins of value A1, A2 ... An respective…

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,…

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…

Coin Change Time Limit: 1000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 16592 Accepted Submission(s): 5656 Problem Description Suppose there are 5 types of coins: 50-cent, 25-cent, 10-cent, 5-cent, and 1-cent.…

[LeetCode]518. Coin Change 2 解题报告(Python) 作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 题目地址:https://leetcode.com/problems/coin-change-2/description/ 题目描述: You are given coins of different denominations and a total amount of money. Write a…

动态规划里例题,硬币问题. p[i] = dp[i - coin[j]] + 1; 注意i < coin[j] dp[i-coin[j]]无解都要跳过. public class Solution { public int coinChange(int[] coins, int amount) { int[] dp = new int[amount+1]; Arrays.fill(dp,Integer.MAX_VALUE); //dp[i] = dp[i - coin[j]] + 1; dp[0…

Coin Change Time Limit: 1000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 10924 Accepted Submission(s): 3669 Problem Description Suppose there are 5 types of coins: 50-cent, 25-cent, 10-cent, 5-cent, and 1-cent…

JSU省赛队员选拔赛个人赛1 一.题目概述: A.Coin Change(暴力求解.动态规划)     B.Fibbonacci Number(递推求解) C.Max Num(排序.比较) D.单词数(字符串比较.库函数运用) E.无限的路(平面几何) F.叠筐(规律输出) 二.解题报告: A.Coin Change 给一个钱的总金额,求出用100个以内的50分.25分.10分.5分.1分硬币拼成该金额的不同拼法. 直接暴力,打表什么的都是浮云.开始总觉得用暴力求解显得自己没风度,不够高端霸气上…

Coin Change (IV) Time Limit: 1000MS   Memory Limit: 32768KB   64bit IO Format: %lld & %llu [Submit]   [Go Back]   [Status] Description Given n coins, values of them are A1, A2 ... An respectively, you have to find whether you can pay K using the coin…

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,…

题目链接:https://vjudge.net/contest/59424#problem/A 题目大意: 有5种硬币, 面值分别为1.5.10.25.50,现在给出金额,问可以用多少种方式组成该面值. 解题思路: 首先我们可以想到,用这些硬币组成11有多少种． 就是组成10的种数,加上组成6的种数,加上组成1的种数,因为这些面值都是加上一枚硬币就得到11了. 然后我们又能继续去求1组成10的种数,那么明显就是9,5,0的组成数的和. 需要注意的是1+5自底向上的方法,需要注意的是1+5和5+1…

题意:有5种硬币,个数无限的,组成n元的不同方案有多少种? 思路:常规完全背包.重点在dp[0]=1,dp[j]中记录的是组成 j 元的方案数.状态转移方程dp[j+coin[i]]+=dp[j]. #include <bits/stdc++.h> using namespace std; , , , , }; ], n; int cal() { ; memset(dp,,sizeof(dp)); dp[]=; ; i<; i++) ; j+coin[i]<=n; j++) dp[…

mycode 我开始错误的思路:先用大钱除总钱数来保证 fewest number of coins,当最后剩下的amount小于最小币值的货币时,就说明return -1,但是这样想是有问题的!!! 例如:[1,4,5]   12=5*2+2    12 =5*2 + 1*2 用了4枚,但是12 = 4*3 因为还有下一步,也就是用次大的币值去重复这个步骤!!而且也不能直接去使用次大的,而是先把最大币值的数目-1,-2,-3....依次看 参考: 思路:类似于上一个62.unique path…

[题解]284E. Coin Troubles(dp+图论建模) 题意就是要你跑一个完全背包,但是要求背包的方案中有个数相对大小的限制 考虑一个\(c_i<c_j\)的限制,就是一个\(c_i\)一定可以对应一个\(c_j\),一个常见的钦定手法是,直接把\(c_j\)的权值捆绑在\(c_i\)上,实现选一个\(c_i\)必选一个\(c_j\).但是题目里是大于号怎么办,那就直接在背包中钦定先拿一个\(c_j\)即可. 现在问题就是维护这一个捆绑的关系,我们可以直接根据差分约束的那种方法建模出来…

作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 目录 题目描述 题目大意 解题方法 动态规划 日期 题目地址:https://leetcode.com/problems/coin-change/description/ 题目描述 You are given coins of different denominations and a total amount of money amount. Write a function to…