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搜索关键字:分组背包    ( 249个结果
hdu 1561 树形dp+分组背包
题意:就是给定n个点,每个地点有value[i]的宝物,而且有的宝物必须是另一个宝物取了才能取,问取m个点可以获得的最多宝物价值。一个子节点就可以返回m个状态,每个状态表示容量为j(j 2 #include 3 #include 4 #include 5 #include 6 #include 7 ...
分类:其他好文   时间:2015-05-12 01:23:15    阅读次数:161
hdu3535---AreYouBusy(混合分组背包,有坑点)
Problem Description Happy New Term! As having become a junior, xiaoA recognizes that there is not much time for her to AC problems, because there are some other things for her to do, which makes her...
分类:其他好文   时间:2015-05-11 09:08:53    阅读次数:128
CSU1613: Elephants(分组背包)
Description Zuosige always has bad luck. Recently, he is in hospital because of pneumonia. While he is taking his injection, he feels extremely bored. However, clever Zuosige comes up with a new ga...
分类:其他好文   时间:2015-05-10 20:35:40    阅读次数:215
hdu3033---I love sneakers!(分组背包变形)
Problem Description After months of hard working, Iserlohn finally wins awesome amount of scholarship. As a great zealot of sneakers, he decides to spend all his money on them in a sneaker store.There...
分类:其他好文   时间:2015-05-10 17:25:25    阅读次数:116
hdu1712---ACboy needs your help(dp,分组背包)
Problem Description ACboy has N courses this term, and he plans to spend at most M days on study.Of course,the profit he will gain from different course depending on the days he spend on it.How to arr...
分类:其他好文   时间:2015-05-10 15:49:01    阅读次数:206
hdu 1561 The more, The Better 树状DP
ACboy很喜欢玩一种战略游戏,在一个地图上,有N座城堡,每座城堡都有一定的宝物,在每次游戏中ACboy允许攻克M个城堡并获得里面的宝物。但由于地理位置原因,有些城堡不能直接攻克,要攻克这些城堡必须先攻克其他某一个特定的城堡。你能帮ACboy算出要获得尽量多的宝物应该攻克哪M个城堡吗? 做法:设一个0节点,自身价值是0,dp[i][j]表示第i个节点,取了j个节点后的价值。因为先取父亲才能取儿子,所以要从dp[i][1] 开始转移。把子节点的状态转移到父亲节点。 因为和分组背包一样,子节点不能重复更新父亲...
分类:其他好文   时间:2015-04-30 23:20:35    阅读次数:352
[CF148E] Porcelain (分组背包)
题目链接:http://codeforces.com/problemset/problem/148/E题目大意:有n组数据,每次可以从任意一组的两端取出1个数,问你取m个数最大能组成多少?思路:先将这n组数据变成每组内选i个最大能取到多少,就是合成若干个物品,然后就是分组背包问题。分组背包:问题有N...
分类:其他好文   时间:2015-04-30 07:32:31    阅读次数:152
HDU 1712 ACboy needs your help (分组背包问题)
有n门课程,和m天时间,完成a[i][j]得到的价值为第i行j列的数字,求最大价值......   看过背包九讲的话,做这个就容易多了,其实就是简单的分组背包问题。   #include #include using namespace std; int A[105][105]; int dp[105]; int main() { int n, m; ...
分类:其他好文   时间:2015-04-02 22:41:10    阅读次数:155
HDU1712:ACboy needs your help(分组背包)
题目:http://acm.hdu.edu.cn/showproblem.php?pid=1712解释看这里:http://www.cnblogs.com/zhangmingcheng/p/3940332.html这题之前竟然做过,竟然不记得了,做了一个小时,竟然没A,(我连分组背包干什么的都忘了)...
分类:其他好文   时间:2015-03-31 19:32:28    阅读次数:110
hdu 3033 I love sneakers! 分组背包
题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=3033After months of hard working, Iserlohn finally wins awesome amount of scholarship. As a great zealo...
分类:其他好文   时间:2015-03-28 15:38:53    阅读次数:183
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