questions regarding the use of A* with the 15-square puzzle

I'm trying to build an A* solver for a 15-square puzzle. The goal is to re-arrange the tiles so that they appear in their natural positions. You can only slide one tile at a time. Each possible...

How can I get my android emulator use my computer's VPN interface?

My company requires VPN to connect to our dev systems and for the first time I'm trying to work on an android app from home. Turns out the emulator doesn't want to use the VPN interface so even...

Provide value on 'System.Windows.Markup.StaticResourceHolder' threw an exception

I am using http://blogs.microsoft.co.il/blogs/justguy/archive/2009/01/19/wpf-combobox-with-checkboxes-as-items-it-will-even-update-on-the-fly.aspx?CommentPosted=true#commentmessage example to show...

BadParcelableException: ClassNotFoundException when unmarshalling

I'm pretty new to Serializable and Parcelable. I'm having a hard time passing an instance of this object from an application to a remote service: public class Event implements Parcelable,...

How important is parameter order when calling powershell cmdlets?

In PowerShell (PS), is it important to use cmdlet parameters in the order in which they're defined in the official syntax? I'm adding the -cc parameter to send-mailMessage in an existing script. I...

Priority of the logical statements NOT AND & OR in python

As far as I know, in C & C++, the priority sequence for NOT AND & OR is NOT>AND>OR. But this doesn't seem to work in a similar way in Python. I tried searching for it in the Python documentation...

Priority Queues in discrete event simulation and modelling

I have been asked to write a program in Java for a single server system, where the rate of arrival is continuously distributed. I have been asked to do this using priority queues. But I don't...

wpa_supplicant Association Failed

I would like to connect my linux board to an access point (i.e mobile phone) by using wpa_supplicant. My mobile phone ap is configured with WPA (AES) security. I modified the wpa_supplicant.conf...

Implementation of Editable Priority Queue

I wanted to implement my own Priority Queue for Dijkstra's shortest path algorithm that stores shortest discovered distance to particular node and also allow editing it, so I thought to make heap...

Implementing open and closed list for A* algorithm on a GPS

I am currently trying to create a GPS system which can take in map data and find the shortest distance between the start point and the end point in the shortest distance. The program takes in...

vstest.console,exe with ClassName as /testcasefilter

I am looking for executing the unit test by ClassName using vstes.console.exe, any help I tried like /TestCaseFilter:"ClassName=ProgressTests" but throws error as Error: No tests matched the...

ADB finds no devices on Ubuntu Linux

I think I've gone over just about every related thread on SO over this topic(there's a lot), but none seem to solve my issue. Running Ubuntu 16.04 LTS, and have attempted to get ADB working with...

How to sort list by priority in JavaScript?

How to sort list items by priority? This is a to-do list. User can input an item, choose a priority, and add to list. This is my HTML form: <input id="task" type="text"/> <select id="priority"> ...

How to apply DSCP fields on SYNC-ACK packets using setsocketopt function

I have a TCP client and server running on Linux platform. Basically using setsocketopt I am able to mark SYNC packets. But I don't know how to apply DSCP priority to SYNC-ACK packet. I can set...

"This video is unavailable." in Youtube IFrame API - Why, and how to fix?

I have a Youtube IFrame embed that I'm loading with the IFrame API via JS. When I try playing certain videos (it seems to usually be ones containing copyrighted music, although this isn't always...

PATH not updated correctly from conda activate in VSCode's terminal

I am using VSCodes terminal pane. I activate a conda environment. For some reason, the python command is still set to /usr/bin/python, instead of the correct path to the conda environment. % conda...

Deleting from Indexed Priority Queue (java)

I have an Indexed Minimum Priority Queue implemented as a heap. When deleting an indexed element, the code is: public void delete(int i) { if (i < 0 || i >= maxN) throw new...

Kotlin could not find the required JDK tools in the Java installation

When running ./gradlew clean build I get following message: > Task :compileKotlin FAILED FAILURE: Build failed with an exception. * What went wrong: Execution failed for task ':compileKotlin'. >...

Unity - A scripted object has a different serialization layout when loading error

The game has run on my iPhone 8 Plus before, and it has worked with no issues up until now. Now I get the following output in Xcode during the app's runtime: 2019-03-25 02:16:01.659981+0000...

Black (Python) Ignore Rule

I feel Black is doing something not compliant (with my Organisation), so I am trying to ignore certain rules. Example below and a related link PEP 8: whitespace before ':' My Organisation (Coding...

Custom Lint annotation detector is not triggered

I am trying to write my first Lint rule. For now I just want to detect the use of the annotation @AnyThread. I have created a module to implement my custom rule. The gradle file for this module is...

WebRTC does not work in the modern browsers when a peer is not behind a NAT because of the obfuscating host address

While troubleshooting my web app, I found draft-mdns-ice-candidates, which is about obfuscating addresses in host candidates by using mDNS. And I found that when the two peer (agent L, agent R) is...

On a k8s node, how does one manage the pod disk IO land-rush at node power-on?

The Problem When one of our locally hosted bare-metal k8s (1.18) nodes is powered-on, pods are scheduled, but struggle to reach 'Ready' status - almost entirely due to a land-rush of disk IO from...

Dgraph always shows'Connection lost with alpha: 7080' error

I now use docker-compose to start Dgraph, but it always fails to start. The contents of docker-compose.yml are as follows: # This Docker Compose file can be used to quickly bootup Dgraph Zero #...

Flutter Local Notification Weekly Repeat Notification

can anyone help me to figure it out, I am trying to integrate Flutter Local Notification to my small project, Dynamically I am adding time and day not date, and want to repeat the notification on...

How to re-render a list after deleting an element

I am trying to write a delete method in order to delete an element from a list, first of all I am not being able to write it in a setState function so I have it as a direct function call, How can...

NSPersistentCloudkitContainer Memory Leak -> Crash? (iOS 15 beta 4, 5, 6 & 7...)

This is a copy of a thread I've created on Apple's Forum here Background I have an established app in the App Store which has been using NSPersistentCloudKitContainer since iOS 13 without any...

Webpack build failing with ERR_OSSL_EVP_UNSUPPORTED

I'm having an issue with a webpack build process that suddenly broke resulting in the following error... <s> [webpack.Progress] 10% building 0/1 entries 0/0 dependencies 0/0...

Angular form group vs form control and form builder in Reactive Forms

I'm new to Angular. I came across the code with three variants. I want to know what difference does these three makes implementing in the Reactive forms(Form group, Form builder, and Form...

Beginner C++ Array

I am new to C++, below is a code to input and display an array , a simple thing to understand how thing work.. int main() { int N, i; int A[N]; cin >> N; for (i = 0; i < N; i++) { cin...