1087: [SCOI2005]互不侵犯King Time Limit: 10 Sec  Memory Limit: 162 MBSubmit: 3336  Solved: 1936[Submit][Status][Discuss] Description 在N×N的棋盘里面放K个国王,使他们互不攻击,共有多少种摆放方案.国王能攻击到它上下左右,以及左上左下右上右下八个方向上附近的各一个格子,共8个格子. Input 只有一行,包含两个数N,K ( 1 <=N <=9, 0 <= K &…

题目大意 在N×N的棋盘里面放K个国王,使他们互不攻击,共有多少种摆放方案.国王能攻击到它上下左右,以及左上 左下右上右下八个方向上附近的各一个格子,共8个格子. 思路 首先,搜索可以放弃,因为这是一个计数问题,正解几乎不可能是搜索. 我们考虑这样一个决策过程:对于每一行,我们决定放哪些格子.这个决策过程很明显满足无后效性和最优子结构,同时,根据上一行可以递推出这一行的所有可行方案. 所以,我们考虑使用动态规划. 怎么划分阶段呢?根据我们以上的推理,很显然可以根据行来划分阶段. 怎么转移呢?在转…

King's Quest Time Limit: 15000MS Memory Limit: 65536K Case Time Limit: 2000MS Description Once upon a time there lived a king and he had N sons. And there were N beautiful girls in the kingdom and the king knew about each of his sons which of those g…

一.题目 Description 在N×N的棋盘里面放K个国王,使他们互不攻击,共有多少种摆放方案.国王能攻击到它上.下.左.右,以及左上.左下.右上.右下八个方向上附近的各一个格子,共8个格子. Input 只有一行,包含两个数N,K ( 1 <=N <=9, 0 <= K <= N * N) Output 方案数 Sample Input 3 2 Sample Output 16 原题链接→_→bzoj1087: [SCOI2005]互不侵犯King 二.题目分析 其实我们可以…

并查集+左偏树.....合并的时候用左偏树,合并结束后吧父结点全部定成树的根节点,保证任意两个猴子都可以通过Find找到最厉害的猴子                       Monkey King Time Limit: 10000MS   Memory Limit: 32768KB   64bit IO Format: %lld & %llu [Submit]   [Go Back]   [Status] Description Once in a forest, there lived…

K. King's Rout time limit per test 4 seconds memory limit per test 512 megabytes input standard input output standard output The great rout will be held this evening in the palace of his majesty Nassah II, the king of Occorom. There are n guests invi…

1087: [SCOI2005]互不侵犯King Time Limit: 10 Sec Memory Limit: 162 MB Submit: 2337 Solved: 1366 [Submit][Status][Discuss] Description 在N×N的棋盘里面放K个国王,使他们互不攻击,共有多少种摆放方案.国王能攻击到它上下左右,以及左上左下右上右下八个方向上附近的各一个格子,共8个格子. Input 只有一行,包含两个数N,K ( 1 <=N <=9, 0 <= K &…

Description Once, in one kingdom, there was a queen and that queen was expecting a baby. The queen prayed: ``If my child was a son and if only he was a sound king.'' After nine months her child was born, and indeed, she gave birth to a nice son. Unfo…

[Educational Codeforces Round 16]A. King Moves 试题描述 The only king stands on the standard chess board. You are given his position in format "cd", where c is the column from 'a' to 'h' and dis the row from '1' to '8'. Find the number of moves perm…

题目链接:http://codeforces.com/problemset/problem/370/A 题目意思:根据rook(每次可以移动垂直或水平的任意步数(>=1)),bishop(每次可以移动对角线上的任意步数(>=1))和king(每次垂直.水平或对角线的一步(=1))的走法,给出起始位置和结束位置.求出这三种棋子分别从起始位置走到最终位置的最少步数. rook bishop king 首先,先解释下面所说的直线和斜线. 直线:是坐标轴上与x轴平行或与y轴平行的情况的直线. 斜线:图…

King's Cake Problem Description It is the king's birthday before the military parade . The ministers prepared a rectangle cake of size n×m(1≤n,m≤10000) . The king plans to cut the cake himself. But he has a strange habit of cutting cakes. Each time,…

[poj2728]Desert King 题意 最优比率生成树. http://blog.csdn.net/ophunter_lcm/article/details/10113817 分析 Dinkelbach算法,通过迭代的思想进行参数搜索. 每一次的参数搜索,求出来的最小生成树又会生成一个更优的参数,然后用新的参数继续搜...以此类推. 为什么生成的参数会更优? 这是因为我们要最小化\(\sum C\over \sum D\),我们设答案为\({\sum C\over \sum D}<L\)…

KING——学习小组 小组成员及github地址&博客地址: 张静 https://github.com/loiskris/test.git  http://www.cnblogs.com/loiskris/林栋 https://github.com/lendoon/test.git  http://www.cnblogs.com/lendoon/李阳光 https://github.com/wang0202zhu/test.git  http://www.cnblogs.com/wang020…

King's Sanctuary Time Limit: 20 Sec  Memory Limit: 256 MB 题目连接 http://acm.uestc.edu.cn/#/problem/show/93 Description The king found his adherents were building four sanctuaries for him. He is interested about the positions of the sanctuaries and want…

King's Cake Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 736    Accepted Submission(s): 539 Problem Description It is the king's birthday before the military parade . The ministers prepared a…

http://poj.org/problem?id=2728 Desert King Time Limit: 3000MS   Memory Limit: 65536K Total Submissions: 18595   Accepted: 5245 Description David the Great has just become the king of a desert country. To win the respect of his people, he decided to b…

King's Quest 题意:有N个王子和N个妹子;(1 <= N <= 2000)第i个王子喜欢Ki个妹子:(详见sample)题给一个完美匹配,即每一个王子和喜欢的一个妹子结婚:问每一个王子可以有几种选择(在自己喜欢的妹子里面选),并输出可选的妹子的标号(升序): Sample Input 4 (N) 2 1 2 (Ki) 2 1 2 2 2 3 2 3 4 1 2 3 4 (完美匹配) Sample Output 2 1 2 2 1 2 1 3 1 4 分析:图匹配问题,1~N为王子的…

http://codeforces.com/contest/370/problem/A 题意:车是走直线的,可以走任意多个格子,象是走对角线的,也可以走任意多个格子,而国王可以走直线也可以走对角线,但是每次只能走一个格子. 思路:这个题的车和国王不难理解,车是如果两个点在同一列或者同一行上那么走一步即可到达,剩下的走两步都可到达.国王是走两个点的行和列的差值的最大值,也就是说king=max(fabs(r1-r2),fabs(c1-c2)):表示我一直错在象上,错了六遍....竟然还没掉rati…

1087: [SCOI2005]互不侵犯King Time Limit: 10 Sec  Memory Limit: 162 MBSubmit: 1499  Solved: 872[Submit][Status] Description 在N×N的棋盘里面放K个国王,使他们互不攻击,共有多少种摆放方案.国王能攻击到它上下左右,以及左上左下右上右下八个方向上附近的各一个格子,共8个格子. Input 只有一行,包含两个数N,K ( 1 <=N <=9, 0 <= K <= N * N…

The King’s Problem Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 2259    Accepted Submission(s): 795 Problem Description In the Kingdom of Silence, the king has a new problem. There are N citi…

Description David the Great has just become the king of a desert country. To win the respect of his people, he decided to build channels all over his country to bring water to every village. Villages which are connected to his capital village will be…

洛谷1377 M国王 (SCOI2005互不侵犯King) 本题地址:http://www.luogu.org/problem/show?pid=1377 题目描述 天天都是n皇后,多么无聊啊.我们来一道m国王游戏吧!    题目是这样的,在n*n的格子里放m个国王,使他们不互相攻击,有多少种放法呢?(可以为0)    国王的攻击力大不如皇后,他只能对与他相邻的8个格子产生攻击. 输入输出格式 输入格式: n,m 输出格式: 方案数 输入输出样例 输入样例#1: 1 1 输出样例#1: 1 说明…

Monkey King Time Limit: 10000/5000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 4714    Accepted Submission(s): 2032 Problem Description Once in a forest, there lived N aggressive monkeys. At the beginning, they e…

P1896 [SCOI2005]互不侵犯King 题目描述 在N×N的棋盘里面放K个国王,使他们互不攻击,共有多少种摆放方案.国王能攻击到它上下左右,以及左上左下右上右下八个方向上附近的各一个格子,共8个格子. 输入输出格式 输入格式: 只有一行,包含两个数N,K ( 1 <=N <=9, 0 <= K <= N * N) 输出格式: 所得的方案数 输入输出样例 输入样例#1: 3 2 输出样例#1: 16 /*bfs搜索记录数据 打表 正解dp状态压缩 蒟蒻不懂*/ #inclu…

Problem Description After the king's speech , everyone is encouraged. But the war is not over. The king needs to give orders from time to time. But sometimes he can not speak things well. So in his order there are some ones like this: "Let the group-…

Problem Description In a military parade, the King sees lots of new things, including an Andriod Phone. He becomes interested in the pattern lock screen. The pattern × square lattice, the three points ,,, the three points ,,, and the three points ,,.…

Problem Description   It is the king's birthday before the military parade . The ministers prepared a rectangle cake of size n×m(1≤n,m≤10000) . The king plans to cut the cake himself. But he has a strange habit of cutting cakes. Each time, he will cu…

写在项目开始之前: 最近关于android的视频教程,入门的书籍也已经有很多了,例如我的入门就是看了mars的视频教程.但是这么一圈学习下来,觉得真正快速提高的,不是在看视频,而是在实际工作中动手做项目的时候.所以我就思量如何快速的提高学习效率,并且加深记忆呢?其实就是来做项目.因为有一定的基础知识只有,如果不靠实际的项目来加深印象或者加深那种所见即所得的感受,是很难激发出初学者的兴趣的.由于最近在教我的弟弟学习android,他只是一个大一的计算机新生,所以把这个教学过程以及教学经验还有就是实…

Description Once upon a time in a country far away lived a king and he had a big kingdom. He was a very clever king but he had one weakness -- he could count only up to three.         Nevertheless, he did not consider this to be a really great drawba…

Problem Description It is the king's birthday before the military parade . The ministers prepared a rectangle cake of size n×m(1≤n,m≤10000) . The king plans to cut the cake himself. But he has a strange habit of cutting cakes. Each time, he will cut…