You are given a rooted tree with vertices numerated from 1 to n . A tree is a connected graph without cycles. A rooted tree has a special vertex named root. Ancestors of the vertex i are all vertices on the path from the root to the vertex i, except…

Long Live the Queen Time Limit:250MS     Memory Limit:4096KB     64bit IO Format:%I64d & %I64u Description The Queen of Byteland is very loved by her people. In order to show her their love, the Bytelanders have decided to conquer a new country which…

皇后(queen)[题目描述] 众所不知,rly现在不会玩国际象棋.但是,作为一个OIer,rly当然做过八皇后问题.这里再啰嗦几句,皇后可以攻击到同行同列同对角线,在n*n的方格中摆n个皇后使其互不攻击到,求不同的解的数量,这就是经典的n皇后问题.现在问题推广到n皇后问题,这个问题对于你而言实在是小菜一叠.但因为上一次rly把棋盘弄破了,又拿不出新的,所以rly打算难一点点,问题就是破棋盘上的n皇后问题.他想知道……(你们懂的). 棋子都是相同的.[输入说明] 一行,一个正整数N. 接下来N行…

1976 Queen数列  时间限制: 1 s  空间限制: 128000 KB  题目等级 : 黄金 Gold 题解  查看运行结果     题目描述 Description 将1到N的整数数列(1,2,3,……,N)打乱,变为数列a(a[1],a[2],a[3],……,a[N]).如果这个数列对于任意的i∈{1,2,3,……,N}都满足a[a[i]]=N+1-i,则这个数列叫做长度为N的Queen数列. 现给你长度N,请输出字典序最小的Queen数列. 所谓字典序最小,即为a[1]最小,在此…

http://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&page=show_problem&problem=2533 Root 11538 - Chess Queen Time limit: 2.000 seconds You probably know how the game of chess is played and how chess queen operates. Two chess qu…

Problem A Chess Queen Input: Standard Input Output: Standard Output You probably know how the game of chess is played and how chess queen operates. Two chess queens are in attacking position when they are on same row, column or diagonal of a chess bo…

题目链接:10401 - Injured Queen Problem 题目大意:给出一个字符串,要求在n * n(n为字符串的长度)的棋盘上摆放n个受伤的皇后,受伤的皇后只能攻击到同一列和它周围8个格子,如果字符串中第i个字符为'?'表示第i + 1个皇后可以摆放在任意行,如果为1 ~ F表示第i+1个皇后必须摆放在第str[i]行, 问,有多少种不同的摆法? 解题思路:一开始用递归 + 记忆化, 结果超时了, 后来发现其实可以写成递推,dp[i][j]代表第i个皇后摆放在第j行的摆法种类, d…

C. Queen time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output You are given a rooted tree with vertices numerated from 11 to nn. A tree is a connected graph without cycles. A rooted tree has a s…

参考文档: Install-guide:https://docs.openstack.org/install-guide/ OpenStack High Availability Guide:https://docs.openstack.org/ha-guide/index.html 理解Pacemaker:http://www.cnblogs.com/sammyliu/p/5025362.html Ceph: http://docs.ceph.com/docs/master/start/int…

143. Long Live the Queen time limit per test: 0.25 sec. memory limit per test: 4096 KB The Queen of Byteland is very loved by her people. In order to show her their love, the Bytelanders have decided to conquer a new country which will be named accor…