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: 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…

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…

题目链接: http://www.lightoj.com/volume_showproblem.php?problem=1235 题目描述: 给出n个硬币,每种硬币最多使用两次,问能否组成K面值? 解题思路: 因为K草鸡大,尽管n很小,但是2^n很大,无法用背包做到O(nK)的复杂度.如果暴力枚举复杂度立马飙升到O(2^(n+1)).··········· 所以引进一种新的算法,折半查找:把所要枚举的值,先把前部分的值所有情况枚举出来,再把后部分的值所有情况枚举出来并排序,结合二分进行查找. 这…

题目链接:http://www.lightoj.com/volume_showproblem.php?problem=1235 题意: 有N个硬币(N<=18).问是否能在每一个硬币使用不超过两次的情况下支付正好K的面额. 思路 : dfs构造出用这些硬币用前一半能支付的全部费用和后一半能支付的全部费用. 之后排序,枚举前一半的每一个面值在第二个里面二分寻找就可以.(或者用set保存). 代码:(set) #include <stdio.h> #include <ctime>…

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…

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,…

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…

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…

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…

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…

                                                           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…

[题目大意] 给出一些数和一些操作.M:合并两个数所在的集合,如果有任意一个数被删除则忽略操作:K:删除某个数所在集合中最小的数. [思路] 裸裸的,复习^ ^ #include<iostream> #include<cstdio> #include<cstring> #include<algorithm> using namespace std; +; struct node { int key,dis,del; int lson,rson,father;…

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: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: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…

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…

1235 - Coin Change (IV)    PDF (English) Statistics Forum Time Limit: 1 second(s) Memory Limit: 32 MB Given n coins, values of them are A1, A2 ... An respectively, you have to find whether you can pay K using the coins. You can use any coin at most t…

http://poj.org/problem?id=1787   描述 Charlie is a driver of Advanced Cargo Movement, Ltd. Charlie drives a lot and so he often buys coffee at coffee vending machines at motorests. Charlie hates change. That is basically the setup of your next task. Yo…

Coins Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 6279    Accepted Submission(s): 2561 Problem Description Whuacmers use coins.They have coins of value A1,A2,A3...An Silverland dollar. One d…

题意: 给定身上的4种硬币,分别是1 ,5 ,10, 25面额各有多张,要求组成面额p的硬币尽可能多.输出组成p的4种硬币各自的数量. 思路: 多重背包,300+ms.用01背包+二进制的方法.记录下所有的硬币的个数以及4种硬币分别的个数,注意初始化dp数组的不同之处. #include <iostream> #include <cstdio> #include <cstring> #define LL long long using namespace std; ,…

Charlie's Change Time Limit: 1000MS   Memory Limit: 30000K Total Submissions: 3792   Accepted: 1144 Description Charlie is a driver of Advanced Cargo Movement, Ltd. Charlie drives a lot and so he often buys coffee at coffee vending machines at motore…

题目 Coins Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 12330 Accepted Submission(s): 4922 Problem Description Whuacmers use coins.They have coins of value A1,A2,A3-An Silverland dollar. One day H…

本题是极其裸的EXGCD AX+BY+C=0 给你a b c 和x与y的区间范围,问你整数解有几组 作为EXGCD入门,题目比较简单 主要需要考虑区间范围的向上.向下取整,及正负符号的问题 问题是这正负号判断考虑让我WA无数次 我好菜阿 补充:关于使用扩展欧几里德算法解决不定方程的办法 对于不定整数方程pa+qb=c,若 c mod Gcd(p, q)=0,则该方程存在整数解,否则不存在整数解. 上面已经列出找一个整数解的方法,在找到p * a+q * b = Gcd(p, q)的一组解p0,q…