题意 有分别价值为1,2,3,4,5,6的6种物品,输入6个数字,表示相应价值的物品的数量,问一下能不能将物品分成两份,是两份的总价值相等,其中一个物品不能切开,只能分给其中的某一方,当输入六个0是(即没有物品了),这程序结束,总物品的总个数不超过20000 思路 裸的多重可行性背包,设dp[i]表示容量为i是否可装.状态设计看代码吧. 代码 [cpp] #include <iostream> #include <cstdio> #include <cmath> #in…

多重背包模板- #include <stdio.h> #include <string.h> int a[7]; int f[100005]; int v, k; void ZeroOnePack(int cost, int weight) { for (int i = v; i >= cost; i--) if (f[i - cost] + weight > f[i]) f[i] = f[i - cost] + weight; } void CompletePack(…

Dividing Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 63980   Accepted: 16591 Description Marsha and Bill own a collection of marbles. They want to split the collection among themselves so that both receive an equal share of the marbl…

Q: 倍增优化后, 还是有重复的元素, 怎么办 A: 假定重复的元素比较少, 不用考虑 Description Marsha and Bill own a collection of marbles. They want to split the collection among themselves so that both receive an equal share of the marbles. This would be easy if all the marbles had the…

http://poj.org/problem?id=1014 题意:6个物品,每个物品都有其价值和数量,判断是否能价值平分. 思路: 多重背包.利用二进制来转化成0-1背包求解. #include<iostream> #include<string> #include<cstring> #include<cstdio> #include<algorithm> using namespace std; ; int sum; ]; int d[max…

Dividing   Description Marsha and Bill own a collection of marbles. They want to split the collection among themselves so that both receive an equal share of the marbles. This would be easy if all the marbles had the same value, because then they cou…

二进制优化,事实上是物体的分解问题. 就是比方一个物体有数量限制,比方是13,那么就须要把这个物体分解为1. 2, 4, 6 假设这个物体有数量为25,那么就分解为1, 2, 4. 8. 10 看出规律吗,就是分成2的倍数加上位数,比方6 = 13 - 1 - 2 - 4, 10 = 25 - 1 - 2 - 4 - 8.呵呵,为什么这么分解? 由于这样分解之后就能够组合成全部1到13的数.为25的时候能够组合成全部1到25的数啦. 就是这么一个分解物体.最后组合的问题. 不明确? 给多几个数字…

原题目:http://poj.org/problem?id=1014 题目大意: 有分别价值为1,2,3,4,5,6的6种物品,输入6个数字,表示相应价值的物品的数量,问一下能不能将物品分成两份,是两份的总价值相等,其中一个物品不能切开,只能分给其中的某一方,当输入六个0是(即没有物品了),这程序结束,总物品的总个数不超过20000 输出:每个测试用例占三行: 第一行: Collection #k: k为第几组测试用例 第二行:是否能分(具体形式见用例) 第三行:空白(必须注意,否则PE) 一:…

Dividing Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 66032 Accepted: 17182 Description Marsha and Bill own a collection of marbles. They want to split the collection among themselves so that both receive an equal share of the marbles.…

Time Limit: 1000MS Memory Limit: 10000K Total Submissions: Accepted: Description Marsha and Bill own a collection of marbles. They want to split the collection among themselves so that both receive an equal share of the marbles. This would be easy if…