http://acm.hdu.edu.cn/showproblem.php?pid=4655 先以最大的来算为 N*所有的排列数  再减掉重复的 重复的计算方法:取相邻的两个数的最小值再与它前面的组合数和后面的组合数相乘 注意负值 #include <iostream> #include<cstdio> #include<cstring> #include<algorithm> #include<stdlib.h> using namespace…

Pieces Assignment My Tags   (Edit)   Source : zhouguyue   Time limit : 1 sec   Memory limit : 64 M Submitted : 539, Accepted : 190 Background 有一个n*m的棋盘(n.m≤80,n*m≤80)要在棋盘上放k(k≤20)个棋子,使得任意两个棋子不相邻(每个棋子最多和周围4个棋子相邻).求合法的方案总数. Input 本题有多组测试数据,每组输入包含三个正整数n…

putting the pieces together 在最高的级别,schema.xml结构如下, <schema> <types> <fields> <uniqueKey> <defaultSearchField> <solrQueryParser defaultOperator> <copyField> </schema> 明显的,这最重要的内容是在types和fields中,也就是字段类型和实际字段定义…

题意: 有个矩形,左下角(0,0),左上角(L,W). 思路: 除了圆盘之外,本题的输入也是个PSLG,因此可以按照前面叙述的算法求出各个区域:只需把线段视为直线,用切割凸多边形的方法 :每次读入线段,切割所有块,最终得到若干凸多边形 如何判断多边形是否与圆盘相交:如果多边形的边和圆周规范相交,圆盘和多边形一定相交, 1:即使完全没有公共点,也可以相交,互相内含 需要判断多边形是否有顶点在园内,还需要判断圆心是否在多边形内: 2.如果不规范:  a:带判断的线段在园外: b:带判断的线段在园内即…

Pizza pieces Description In her trip to Italy, Elizabeth Gilbert made it her duty to eat perfect pizza. One day, she ordered one for dinner. And then some Italian friends appeared at her room. The problem is that there were many people who ask for a…

Pieces 题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=4628 题目大意:给定一个字符串s,如果子序列中有回文,可以一步删除掉它,求把整个序列删除所需要的最少步数.比如: axbyczbea 可以一次删除掉 abcba 得到 xyze Sample Input 2 aa abb   Sample Output 1 2 分析:这道题目刚出来时居然有超过一半的人AC,是我太弱了吗? 到底不会,先贴出标程,再慢慢消化好了 集合上的动态规划...和点…

B. Sheldon and Ice Pieces time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Do you remember how Kai constructed the word "eternity" using pieces of ice as components? Little Sheldon play…

my team solve the problem in the contest with similar ideathis is a more deep analysis The main idea is that if some comparator can be defined so that,if the pieces are previously sorted, always exist some optimal solution that can be formed followin…

Pieces Time Limit: 6000/3000 MS (Java/Others)    Memory Limit: 131072/131072 K (Java/Others) Total Submission(s): 1418    Accepted Submission(s): 724 Problem Description You heart broke into pieces.My string broke into pieces.But you will recover one…

Cut Pieces Time Limit: 4000/2000 MS (Java/Others)    Memory Limit: 131072/65536 K (Java/Others)Total Submission(s): 133    Accepted Submission(s): 62 Problem Description Suppose we have a sequence of n blocks. Then we paint the blocks. Each block sho…