fibonacci queen

The Queen's question was promoted by the 8 Queen's question.Eight Queen's question is a chess-based question: how can you place eight queens on an 8x8 chess board so that no queen can directly eat the rest of the queen? To achieve this, neither of the two queens can be in the same row, vertical line, or slash.650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M00/57/F8/wKioL1Sk1Z2C4AT3AAIgszap58g271.jpg

Describes typical problems. N queen question (enhanced edition) the Queen wants to know how many arrangements they have. Chess rules: the Queen's diagonal lines can attack each other. Two queens are located in the same row or the same column .! That is to say, place n pieces on the board so that each row and column have only one and each diagonal line (including all the diagonal lines of the two main diagon

Title Index: http://acm.sgu.ru/problem.php?contest=0problem=143 143. Long Live the Queen Time limit per test:0.25 sec.Memory limit per test:4096 KB The Queen of Bytelandis very loved by her people. In order to show her their love, the Bytelandershave decided to conquer a new country which would be named according tothe Queen ' s name. This new country containsN

N Queen's Question Time limit:1000msmemory limit:32768kbthis problem'll be a judged onHDU. Original id:255364-bit integer IO format: %i64d Java class name: Main N-Queens are placed in the N*n's checkered checkerboard, making them not attack each other (that is, any 2 queens are not allowed to be in the same row, in the same column, or in a diagonal line with a 45-angle checkerboard border.)Your task is to find out how many legal placement methods are available for a given n.InputThere are sever

N Queen's questionTime limit:2000/1000 MS (java/others) Memory limit:32768/32768 K (java/others)Total submission (s): 11855 Accepted Submission (s): 5301Problem description placed n Queens on the N*n's checkered chessboard, making them not attack each other (that is, any 2 queens are not allowed to be in the same row, in the same column, or in a diagonal line with a 45-angle checkerboard border.)Your task is to find out how many legal placement methods are available for a given n.Input has sev

Question link: http://uva.onlinejudge.org/index.php? Option = com_onlinejudge Itemid = 8 page = show_problem problem = 2136 Problem aAnother N-Queen Problem I guessN-Queen problem is known by every person who has studied backtracking. In this problem you shoshould count the number of placementNQueens onN*NBoard so that no two queens attack each other. To make the problem a little bit harder (easie

// N queen Note the aboveProgramThe efficiency of determining whether column I can be placed in the current cur row is relatively low and can be improved. A global variable vis [2] [] is used to store a column, a primary diagonal line, and a diagonal line that has been occupied by the Queen. In this way, you can directly determine whether row I can put the current

Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--># Include # Include Using namespace STD; Const int maxsize = 8; // board sizeInt chess [maxsize] [maxsize] = {0}; // chessboard/* Define the stack node to indicate the location of a queen */Struct Node{Int row;/* row */Int Col;/* column */Bool ismarked;/* Whether to mark */}; /* Handle Queen's issues* Returns the number of answers found.*/Int solve (){//

N Queen Problem description:Place n queens on an N x n chessboard, so that every queen cannot attack other queens.Typical Case of deep traversal with priority.Program input:Number of N (required> 4)Any position on the boardProgram output:Board coordinates meeting problem requirements The program code is as follows:The node class is used to encapsulate the Queen's board location information. public class Nod

Http://acm.hdu.edu.cn/showproblem.php? PID = 2553n Queen Problem Time Limit: 2000/1000 MS (Java/others) memory limit: 32768/32768 K (Java/Others)Total submission (s): 8077 accepted submission (s): 3603 Problem description There are n queens on the N * n checkboard so that they do not attack each other (that is, two queens are not allowed to be in the same row, in the same column, it is not allowed to be on a diagonal line with 45 corners of the checke

Total Submission (s): Accepted submission (s):Problem Description placed n Queens on the N*n's checkered chessboard, making them not attack each other (that is, any 2 queens are not allowed to be in the same row, in the same column, or in a diagonal line with a 45-angle checkerboard border.) Input has several lines, one positive integer n≤10 per line, indicating the number of boards and queens, or, if n=0, the end. Output has several rows, one positive integer per line, representing the number o

Problem description The Earth people know, in chess, like the sun, radiant, awe-imposing eight sides, it can control the position of the horizontal, firm, Slash. The Chinese people who have seen the Qing Palace play know that the harem is a dangerous place to walk. The Queens have their own sphere of influence, but they can always find a way to be peaceful. All the Chinese know that the imperial power is sacred, accompanied by the tiger, the Touch Longyan die ... Now there is a N*n palace, where

Question: Eight queensIt is a question with the background of chess: how can we place eight queens on the 8x8 chess board so that no queen can directly eat other queens? For this purpose, neither queen can be in the same horizontal, vertical, or diagonal line. The eight queens problem can be promoted to a more generalNPlacement of queens: The size of the board changesN×NAnd the number of Queens also becomes

For more information, see the bit operations related to matrix67. This article lists matrix67 bit operations and their usage skills (1) (2) (3) (4). It is worth reading. This section describes the n queen problem and provides the C ++ bit operation implementation version and annotation analysis. The Queen's problem is very classic, so we will not repeat the problem itself to solve the Queen's problem. Generally, we use the deep search DFS + Backtrack

The famous n queen problem is to find the first row by row, first find the first row, the first row to find a column to meet the conditions, continue to find the next row, if the next row also finds a column that meets the conditions, continue to find the next row, and so on, and finally find the solution. However, if it cannot be found, it indicates that the position of the last row is incorrect, therefore, go back to the previous row and continue to

The first time you write backtracing, The backtracing definition is provided. Personal Understanding: Similar to recursion, but check all States. Authoritative explanation: The backtracking method is also called the testing method. Its basic idea is to search for all the "States" that can be achieved from a certain State (Initial State) of the problem ", when a path reaches the "end" (you cannot move forward again), move back or several steps, start from another possible "status" and continue se

N queen's question Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission (s): 5526 Accepted Submission (s): 2507Problem Description places N queens on the square board of N * N so that they do not attack each other (that is, two queens are not allowed to be in the same row, the same column, it is not allowed to be on a diagonal line with 45 corners of the checker border. Your task is to determine the number of valid placement methods for the given N. Th

// Reference books: Computer Algorithm basics-the third edition of Huazhong University of Science and Technology // Use the backtracking method to implement the n queen problem. The nqueens (int K) method is implemented recursively. To improve efficiency, it can be changed to non-recursion. //queen.h--Queen class#ifndef _QUEEN_H_#define _QUEEN_H_#include

N Queen's questionDescription of the problem:The N Queen question is a classic question, placing n queens on a n*n board, one per line and making it impossible to attack each other (the Queen on the same line, in the same column, on the same slash) will attack itself.1. Because each piece is impossible to walk along. So it's understandable to take a pawn from every line of the board.2. Because each row of p

Hduoj 2553 Dfs, backtracking n queens questionTime limit:2000/1000 MS (java/others) Memory limit:32768/32768 K (java/others)Total submission (s): 10297 Accepted Submission (s): 4634Problem description placed n Queens on the N*n's checkered chessboard, making them not attack each other (that is, any 2 queens are not allowed to be in the same row, in the same column, or in a diagonal line with a 45-angle checkerboard border.)Your task is to find out how many legal placement methods are available f