Part $1-$ Coding Exercise: Connected Sinks in a Pipe System

In this exercise, you will write code to solve a problem. Your code must be in either Python $($preferred$)$ or JavaScript$-$solutions in other languages will not be accepted You can write your code using any IDE you want.

Problem

We have a pipe system represented by a $20$ rectangular grid of cells. There are three different types of objects located in cells in the grid, with each cell having either $0$ objects or $1$ object:

Source: There is $1$ source in the system. It is represented by the asterisk character $"$

Sinks: There are an arbitrary number of sinks in the system. They are each represented by a different uppercase letter $(\text{'}$A: $\text{'}$B$\text{'},C\text{'},$ etc.$),$

Note that each pipe has openings on $2$ or $3$ sides of its cell.

Two adjacent cells are connected if both have a pipe opening at their shared edge.

A sink may be connected to the source through another sink. For example, in the simple pipe system ${?}^{**}xY=Z$; all three sinks are connected to the source.

Your objective is to write a function that determines which sinks are connected to the source in a given pipe system.

As an example consider the following illustration of a pipe system:

In this system, the source is connected to sinks A and $C.$ but it is not connected to sink $B.$

A system is specified by an input text file that contains rows of data indicating the location of the objects in the grid. Each row has three pieces of information, separated by a space character:

The character representing the object $($asterisk uppercase letter, or pipe$).$

The $x-$coordinate of the object in the grid. This has a minimum value of $0.$

The $y-$coordinate of the object in the grid. This has a minimum value of $0.$

Specifications

Your function must be written in Python $($preferred$)$ or JavaScript

The function should take in a single argument which is a string containing the file path for the input text file.