snobu

# apt-get install 
sudo apt-get update
# For ubuntu 14.04
sudo apt-get install -y xserver-xorg-video-dummy-lts-trusty
# For ubuntu 16.04
sudo apt-get install -y xserver-xorg-video-dummy-lts-willy

# Copy the xorg.conf to `/etc/X11/xorg.conf`.
wget -P /etc/X11 https://gist.githubusercontent.com/mangoliou/ba126832f2fb8f86cc5b956355346038/raw/b6ad063711226fdd6413189ad905943750d64fd8/xorg.conf

dhammikamare

Setter/Tester tips are shared here -> https://gist.github.com/shashank21j/64830e7e3dab96a2ccb8

Creating a Contest on HackerRank is an easy process which is divided in 2 steps.

1. Create a Challenge
2. Create a Contest.

#1. Create a Challenge

jewelsea

import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Scene;
import javafx.scene.layout.Pane;
import javafx.stage.Stage;

import java.io.IOException;

/**
 * Main application class.