maze

问题 I want to implement a maze solving algorithm in Prolog. Therefore i searched for some maze solving algorithms and found the following: http://www.cs.bu.edu/teaching/alg/maze/ FIND-PATH(x, y): if (x,y outside maze) return false if (x,y is goal) return true if (x,y not open) return false mark x,y as part of solution path if (FIND-PATH(North of x,y) == true) return true if (FIND-PATH(East of x,y) == true) return true if (FIND-PATH(South of x,y) == true) return true if (FIND-PATH(West of x,y) ==

问题 i want to implement the Recursive backtracker algorithm to solve maze problem, but i cant understand 2.3 Command ("remove the wall between the current cell and the chosen cell") would any help me ? Mark the current cell as 'Visited' If the current cell has any neighbours which have not been visited Choose randomly one of the unvisited neighbours add the current cell to the stack remove the wall between the current cell and the chosen cell Make the chosen cell the current cell Recursively call

问题 What is the algorithm for generating the maze in the game Netwalk? 回答1: The source code is available at Google Code, so you can read it for yourself and find out! The maze is generated by the function generate_maze in game.c , lines 78ff. Update: try the demo! Netwalk generates a maze by running a randomized version of Prim's algorithm to find a minimum spanning tree. Prim's algorithm iteratively grows a tree once branch at a time, starting from a source node (or nodes: in this case, the

问题 I'm having trouble figuring out how exactly to get this to work... I'm attempting to get the shortest path to the goal using a DFS. I know that BFS is better but I was asked to use DFS for this. As you can see, I attempt to make a comparison between all stacks that lead to the end to find the goal, but it does not work, only the first stack that leads to the goal is ever printed... I know somewhere I need to unvisit nodes, but I cannot figure out exactly how. Right now I do get a path to the

问题 I'm having trouble figuring out how exactly to get this to work... I'm attempting to get the shortest path to the goal using a DFS. I know that BFS is better but I was asked to use DFS for this. As you can see, I attempt to make a comparison between all stacks that lead to the end to find the goal, but it does not work, only the first stack that leads to the goal is ever printed... I know somewhere I need to unvisit nodes, but I cannot figure out exactly how. Right now I do get a path to the

问题 I have this project to build a perfect maze recursively by using python. I have a MyStack class which creates a stack to track the path that I go through. And a Cell class which represent each square within the maze and store some information. I think I complete the code but IDLE gives me some error that I couldn't figure out. Here is the code. from random import * from graphics import * class MyStack: def __init__(self): self.S = [] def push(self, item): self.S.insert(0, item) def pop(self):

问题 Maze I have a maze as shown above(use the link) and state 3 contains prize while state 7 contains shock. a mouse can be placed in any state from 1 to 9 randomly and it move through the maze uniformly at random Pi denote the probability that mouse reaches state 3 before state 7, given that AIM started in compartment i. how to compute Pi for ∈ {1,2,3,4,5,6,7,8,9}. 回答1: Let Px be the probability that the game ends in position 3 if it starts in position x . We know that P3=1 and P7=0 If you start

问题 The purpose of my code is to create a program that will read in a maze and store it into a 2D array and solve it. I got the program to read the maze and put it into the array but my recursive algorithm is not working and this is the third different time I have changed it trying to get it to work. So could you help me get this to work? Edit:I found out the problem with my original algorithm in the sense I got it to solve the maze but I have ran into another problem. The program is not printing

问题 Given code that included everything to build a maze, I was to write the makeMove method to solve the maze, which I have completed and is working fine. However everything is done to use 2-D array with the maze and visited, I need to edit this to be used with 1-d array for maze and visited. public abstract class AbstractMaze { protected int startRow; // starting row protected int startCol; // starting column protected int endRow; // ending row protected int endCol; // ending column /** *

问题 I need an algorithm for finding the shortest path in a maze that will use recursion. It is my understanding that algorithms that use recursion are usually DFS. I have been looking all over the internet and most results are just Dijkstra's algorithm, which is not recursive. Can someone please provide a pseudo code or point me to the right direction? Thank you. 回答1: Why do you need to use recursion? The most simple algorithm for finding the shortest path is BFS , not DFS, and it is not