Create a Java Program -- 2

The description and files are attached to this. It includes the input files, the program files etc. There are test cases attached as well to check if output is correct or not. I need the program in 4 hours Description of files: 1. [login to view URL] - This contains all of the information of the program. 2. [login to view URL] - Contains all of the classes 3. [login to view URL] - This is the java file you need to edit. This file also has two mini questions on the top of the file that need to be answered and programmed accordingly. The questions are also available at the end of this description. 4. [login to view URL] - This folder contains both input files, and the output file to compare the output of the program with. 5. [login to view URL] - This folder contains both input files, and the output file to compare the output of the program with. The questions portion included in the [login to view URL] file is as follows: ----- On updating distance when a rating is changed ---- How do you update the distance with O(1) operations? Why does your distance update need only O(1) operations? Which method(s) in which program files are your distance update implemented? Please put the methods close to the top in the program files.