博客
关于我
ZOJ3211 Dream City(DP)
阅读量:396 次
发布时间:2019-03-05

本文共 1920 字,大约阅读时间需要 6 分钟。

JAVAMAN is visiting Dream City and he sees a yard of gold coin trees. There are n trees in the yard. Let’s call them tree 1, tree 2 …and tree n. At the first day, each tree i has ai coins on it (i=1, 2, 3…n). Surprisingly, each tree i can grow bi new coins each day if it is not cut down. From the first day, JAVAMAN can choose to cut down one tree each day to get all the coins on it. Since he can stay in the Dream City for at most m days, he can cut down at most m trees in all and if he decides not to cut one day, he cannot cut any trees later. (In other words, he can only cut down trees for consecutive m or less days from the first day!)

Given n, m, ai and bi (i=1, 2, 3…n), calculate the maximum number of gold coins JAVAMAN can get.

Input

There are multiple test cases. The first line of input contains an integer T (T <= 200) indicates the number of test cases. Then T test cases follow.

Each test case contains 3 lines: The first line of each test case contains 2 positive integers n and m (0 < m <= n <= 250) separated by a space. The second line of each test case contains n positive integers separated by a space, indicating ai. (0 < ai <= 100, i=1, 2, 3…n) The third line of each test case also contains n positive integers separated by a space, indicating bi. (0 < bi <= 100, i=1, 2, 3…n)

Output

For each test case, output the result in a single line.

Sample Input

2

2 1
10 10
1 1
2 2
8 10
2 3
Sample Output

10

21
Hints:
Test case 1: JAVAMAN just cut tree 1 to get 10 gold coins at the first day.
Test case 2: JAVAMAN cut tree 1 at the first day and tree 2 at the second day to get 8 + 10 + 3 = 21 gold coins in all.
思路:把b【i】比较大的尽量放到后面,dp【i】【j】表示前i棵树第j天的最大价值。

#include
using namespace std;typedef long long ll;const int maxn=3e2+1;const int inf=0x3f3f3f3f;int dp[maxn][maxn];pair
p[maxn];bool cmp(const pair
&a,const pair
&b){ return a.second==b.second?a.first

转载地址:http://ehewz.baihongyu.com/

你可能感兴趣的文章
MySQL binlog三种模式
查看>>
multi-angle cosine and sines
查看>>
Mysql Can't connect to MySQL server
查看>>
mysql case when 乱码_Mysql CASE WHEN 用法
查看>>
Multicast1
查看>>
MySQL Cluster 7.0.36 发布
查看>>
Multimodal Unsupervised Image-to-Image Translation多通道无监督图像翻译
查看>>
MySQL Cluster与MGR集群实战
查看>>
multipart/form-data与application/octet-stream的区别、application/x-www-form-urlencoded
查看>>
mysql cmake 报错,MySQL云服务器应用及cmake报错解决办法
查看>>
Multiple websites on single instance of IIS
查看>>
mysql CONCAT()函数拼接有NULL
查看>>
multiprocessing.Manager 嵌套共享对象不适用于队列
查看>>
multiprocessing.pool.map 和带有两个参数的函数
查看>>
MYSQL CONCAT函数
查看>>
multiprocessing.Pool:map_async 和 imap 有什么区别?
查看>>
MySQL Connector/Net 句柄泄露
查看>>
multiprocessor(中)
查看>>
mysql CPU使用率过高的一次处理经历
查看>>
Multisim中555定时器使用技巧
查看>>