traversal

问题 Sorry if the title isn't clear. I wasn't sure how to phrase it without an example. So the goal is to traverse a matrix in all directions as fast as possible when starting at a single point(could be anywhere in the matrix). My idea was to use a 2D array and expand outwards in all directions from that single point almost like an explosion. The problem I ran into when developing such an algorithm is that it becomes wildly inefficient when pixels are expanding outwards and exploring already

问题 I have created a function that will insert a list into a defined emtpy list. The list that I am inserting will have some type of keyword for finding it (for example maybe a name or a location) followed by a nested list that will contain some sort of information such as an age of a call record or something (again this is just me trying to learn the recursive syntax). My problem lies in how do I traverse through the bigger list and let the program know that there are several lists within a

问题 I've already created the Binary Tree and Linked list classes, I'm just in need of an algorithm that prints ONLY the nodes of the largest path. The height and size of the Binary Tree are already stored in the root node, but my problem is traversing only the largest path while adding each node to my linked list. 回答1: I assume your binary tree nodes have a reference to their parent, is that right? Then you could use either a breadth-first search or a depth-first search and find root nodes where

问题 Not that I have time to discuss this properly to reach a conclusion and adapt my code because the phase one (of three) of a school project is in 24hrs, but at least I need to know if I did the correct decision. I'm using linked lists and here's my structures: typedef struct sCity { int cityID; char *cityName; struct sCityLink *links; struct sCity *next; } nCity, *City; typedef struct sCityLink { City cityLinkParent; City cityLinkTo; struct sCityLink *next; } nCityLink, *CityLink; Basically, I

问题 I have a method that return an object of a class.The object sets the properties of class and returns. I have to traverse the object and get the value of the properties which the object has set before. I tried to use for-each loop,iterator but failed to traverse. Can someone please help me to get through this.Thanks in advance. code: public class ConsumerTool { public MessageBean getMessages() { MessageBean msgBean = new MessageBean(); msgBean.setAtmId(atmId.trim()); msgBean.setEventText

问题 I am trying to write a simple prolog program which should replace an atom by another atom. The program can take complex functor as an input and would replace all the atoms by another atoms. e.g. In the below term, I want to replace atom a by ax only where I encounter a leaf (i.e. not a functor name). replace(put(a,table,aside(a(dont,replace),a)),X). which should produce output, X = put(ax,table,aside(a(dont,replace),ax)); false. In the above output, replaced a with ax everywhere except the

问题 I am completely new to Neo4j. I am testing the graph database and I have the following simple graph test-structure: different labeled nodes with properties, which are connected. All the nodes have a property, which is called access. It is a list of string elements such as: {access: ['http', 'www']} I'm searching for a solution, where I get all nodes from a starting node which are connected (doesn't matter which type or direction) and their relationship where an intersection on the access

问题 My first time ever trying to traverse directories, but stat is throwing errors for some of the directories due to what seems to be a lack of permission. Error: EPERM: operation not permitted, stat 'K:\System Volume Information' I'd like to simply avoid calling stat on a given directory in the first place if it is going to throw an error, yet I can't figure out how to do it. I've tried looking into ignoring protected directories altogether. However, all of the questions I came across used

问题 I want to compare a variable with a select -> option -> text selected in order to change the "selected" attrib, here is my code, it works but I think is not the best way to write it, excuse my English, I used google translate for help hehehehe : var lista = 'example 1'; $("#id option").each(function(){ if($(this).text() == lista){ $(this).attr('selected','selected'); } }); here's the html: <select id="id" > <option value="0" >example 1</option> <option value="1" >example 2</option> </select>

问题 The lacking JGit docs dont seem to say anything about how to use/detect branches while using a RevWalk. This question says pretty much the same thing. So my question is: How do I get the branch name/id from a RevCommit? Or how do I specify which branch to traverse before hand? 回答1: Found out a better way to do it by looping branches. I looped over the branches by calling for (Ref branch : git.branchList().call()){ git.checkout().setName(branch.getName()).call(); // Then just revwalk as normal