\(\color{#0066ff}{ 题目描述 }\) 给定一个长度为n的序列,至多将序列分成m+1段,每段序列都有权值,权值为序列内两个数两两相乘之和.求序列权值和最小为多少? \(\color{#0066ff}{输入格式}\) 第一行两个数 \(n, m\), 第二行为序列 \(\color{#0066ff}{输出格式}\) 输出一行为最小权值和 \(\color{#0066ff}{输入样例}\) 4 1 4 5 1 2 4 2 4 5 1 2 \(\color{#0066ff}{输出样例}…

2019年1月8日 1.Luogu P2147 [SDOI2008]洞穴勘测 (LCT模板题&LCT学习) 2019年1月9日 2.LuoguP3203 [HNOI2010]弹飞绵羊  (LCT模板题II&LCT进一步学习)   2019年1月10日 3.P3690 [模板]Link Cut Tree (动态树) 4.P2387 [NOI2014]魔法森林  (动态树维护最小生成树) 又颓了一个早上,这样下去布星啊,要被暴打啦 5.P2168 [NOI2015]荷马史诗 (哈夫曼树模板题)…

分类: 网络与安全 cisco-sccp 2000/tcp Cisco SCCPcisco-sccp 2000/udp Cisco SCCp# Dan Wing <dwing&cisco.com> November 2003dc 2001/tcpwizard 2001/udp curryglobe 2002/tcpglobe 2002/udp#brutus 2003/tcp Brutus Serverbrutus 2003/udp Brutus Server# Johannes Sko…

一.写在前面 我写爬虫已经写了一段时间了,对于那些使用GET请求或者POST请求的网页,爬取的时候都还算得心应手.不过最近遇到了一个有趣的网站,虽然爬取的难度不大,不过因为表单提交的存在,所以一开始还是有点摸不着头脑.至于最后怎么解决的,请慢慢往下看. 二.页面分析 这次爬取的网站是:https://www.ctic.org/crm?tdsourcetag=s_pctim_aiomsg,该网站提供了美国的一些农田管理的数据.要查看具体的数据,需要选择年份.单位.地区.作物种类等,如下图: 根据以…

题目大意: 输入n,m 输入n个数 将n个数切割m次分为m+1段,使得各段的Strategic Value总和最小 一组数a b c d的SV值为 a*b + a*c + a*d + b*c + b*d + c*d 即 a*( b+c+d ) + b*( c+d ) + c*d Sample Input 4 14 5 1 24 24 5 1 20 0 Sample Output 172 首先将 原数组a[] 处理出后缀和 s[] 计算出n个数中任意两点之间的SV值 sum[ i ][ j ] 1…

DP/四边形不等式 做过POJ 1739 邮局那道题后就很容易写出动规方程: dp[i][j]=min{dp[i-1][k]+w[k+1][j]}(表示前 j 个点分成 i 块的最小代价) $w(l,r)=\sum_{i=l}^{r}\sum_{j=i+1}^{r}a[i]*a[j]$ 那么就有 $w(l,r+1)=w(l,r)+a[j]*\sum\limits_{i=l}^{r}a[i]$ 所以:w[i][j]明显满足 关于区间包含的单调性 然后我们大胆猜想,小(bu)心(yong)证明,w[…

Lawrence Problem Description T. E. Lawrence was a controversial figure during World War I. He was a British officer who served in the Arabian theater and led a group of Arab nationals in guerilla strikes against the Ottoman Empire. His primary target…

T. E. Lawrence was a controversial figure during World War I. He was a British officer who served in the Arabian theater and led a group of Arab nationals in guerilla strikes against the Ottoman Empire. His primary targets were the railroads. A highl…

题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=2829 T. E. Lawrence was a controversial figure during World War I. He was a British officer who served in the Arabian theater and led a group of Arab nationals in guerilla strikes against the Ottoman Emp…

四边形不等式优化DP Lawrence Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 2220    Accepted Submission(s): 975 Problem Description T. E. Lawrence was a controversial figure during World War I. He was…