puzzle

I'm trying to create my own implementation of a puzzle game. To create my game board, I need to traverse each square in my array once and only once. The traversal needs to be linked to an adjacent neighbor (horizontal, vertical or diagonal). I'm using an array structure of the form: board[n,m] = byte Each bit of the byte represents a direction 0..7 and exactly 2 bits are always set Directions are numbered clockwise 0 1 2 7 . 3 6 5 4 Board[0,0] must have some combination of bits 3,4,5 set My current approach for constructing a random path is: Start at a random position While (Squares remain) if

This bug took me a while to find... Consider this method: public void foo(Set<Object> set) { Object obj=set.iterator().next(); set.remove(obj) } I invoke the method with a non-empty hash set, but no element will be removed! Why would that be? For a HashSet, this can occur if the object's hashCode changes after it has been added to the set. The HashSet.remove() method may then look in the wrong Hash bucket and fail to find it. This probably wouldn't happen if you did iterator.remove(), but in any case, storing objects in a HashSet whose hashCode can change is an accident waiting to happen (as

I have a android application called Islands and bridges also known as Hashiwokakero The application uses A 2 Dimensional array that spawns the Islands randomly everytime the user restarts the game It form a Matrix with number from 0 to 4 where 0=null and 1-4 = Island There can be 2 bridges comming out of one Island to connect the other , The map at the moment is not solvable. To solve the game the user needs to connect the islands using bridges so if an island = 4 it needs 4 connection to it if an island = 2 it needs 2 connection and so on.. in my research i found out that the best algorithm

Closed . This question needs to be more focused . It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post . Closed last year . I Want the program get a pic of user ,then convert image to puzzle (for example 100 piece) then make 100 picture box. I using this following code for 4 and 9 piece. if (Image_Num.SelectedIndex == 0) { PB = new PictureBox[4]; int W, H; var imgarray = new Image[4]; var img = User_Image.Image; W = img.Width / 2; H = img.Height / 2; for (int i = 0; i < 2; i++) { for (int j = 0; j < 2;

I've implemented a program able to solve the n-puzzle problem with A*. Since the space of the states is too big I cannot precompile it and I have to calculate the possible states at runtime. In this way A* works fine for a 3-puzzle, but for a 4-puzzle can take too long. Using Manhattan distance adjusted with linear conflicts, if the optimal solution requires around 25 moves is still fast, around 35 takes 10 seconds, for 40 takes 180 seconds. I haven't tried more yet. I think that's because I must keep all visited states, since I'm using functions admissible but (I think) not consistent (i

I am trying to create a words search puzzle generated by script. The words should be placed horizontally, vertically or diagonally. I might need the option to set whether they are allowed to read only forward or backward. I have an array of words such as (apple, banana, grape, lemon, pear) which needs to be placed in the table. I have already created the table but I am stuck at how to place the words in the grid. I am looking for examples with some explanation. Please see my code below: var wordsList =[ "apple", "banana", "grape", "lemon", "pear" ]; var cells = 10; // Numbers of cells