Given a registry of all houses in your state or province, you would like to know the minimum size of an axis-aligned square zone such that every house in a range of addresses lies in the zone or on its border. The zoning is a bit lenient and you can…

A. Cut it Out! 枚举第一刀,那么之后每切一刀都会将原问题划分成两个子问题. 考虑DP,设$f[l][r]$表示$l$点顺时针一直到$r$点还未切割的最小代价,预处理出每条边的代价转移即可. 时间复杂度$O(n^3)$. #include<cstdio> #include<cmath> #include<algorithm> using namespace std; const int N=422; const double eps=1e-8; const…

How far away ? Time Limit: / MS (Java/Others) Memory Limit: / K (Java/Others) Total Submission(s): Accepted Submission(s): Problem Description There are n houses in the village and some bidirectional roads connecting them. Every day peole always like…

Peach Blossom Spring http://acm.hdu.edu.cn/showproblem.php?pid=4085 Time Limit: 10000/5000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Problem Description Tao Yuanming(365-427) was a Chinese poet of Eastern Jin dynasty. One of his m…

discriptionTao Yuanming(365-427) was a Chinese poet of Eastern Jin dynasty. One of his most famous works is "Peach Blossom Spring", which is a fable about a chance discovery of an ethereal village where the people lead an ideal existence in harm…

Django-Model操作数据库(增删改查.连表结构) 一.数据库操作 1.创建model表        …

题目描述 Given a registry of all houses in your state or province, you would like to know the minimum size of an axis-aligned square zone such that every house in a range of addresses lies in the zone or on its border. The zoning is a bit lenient and you…

Ping pong Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 2691   Accepted: 996 Description N(3<=N<=20000) ping pong players live along a west-east street(consider the street as a line segment). Each player has a unique skill rank. To im…

There are a row of n houses, each house can be painted with one of the k colors. The cost of painting each house with a certain color is different. You have to paint all the houses such that no two adjacent houses have the same color. The cost of pai…

［抄题］: There are a row of n houses, each house can be painted with one of the k colors. The cost of painting each house with a certain color is different. You have to paint all the houses such that no two adjacent houses have the same color. The cost…