Problem

Border Security System

In an imaginary world, every country wants to deploy a border security system (BSS). Main controller of BSS will be deployed in capital city of the country. A sensing cable will go straight to nearest border. The sensing cable will then installed along border surrounding country and come back to capital.

You will be provided two files: one that contains borders of countries as a polygon in geojson format (countries.geojson) and one that contains the coordinates of the capital cities of countries (capitals.geojson).

You are asked to:

1. Calculate length of border of countries.
2. Calculate length of sensing cable. in json format.

Application

• Application shoule be named "bss" case sensitive.
• Application should be written in C++.
• Application may use any version of C++ (98,11,14,17) as long as instructions for compilation and/or project management files (cmake/make/VS Project) are provided.
• Application should be a console application.
• Application should be given command line arguments
• Application may use third party libraries.
• Application should output length of borders of all possible (countries) if command line arguments are not provided.
• Application should read border and capital files from same directory application runs.
• Application should output to standard console output (i.e. std::cout)
• Application should provide meaningful error messages ot standard error output (i.e. std::cerr)

Interfaces

Command line arguments

command line option	description	argument
-c	country of interest. Default: All	ISO Alpha 3 Code
-t	type of calculation. Default: border	"border" or "cable"

Examples

1. Calculate border of Azerbaijan

bss -c AZE -t border

2. Calculate sensing cable length of Bulgaria

bss -c BGR -t cable

3. Calculate border length of all countries

bss

Output

Output of calculation should be in json format. Pretty printing is not important. It should be in legal json format.

Note: Calculations in examples are not correct.

Examples

1. Calculate border of Azerbaijan

[
    {
        "name": "Azerbaijan",
        "iso_a3": "AZE",
        "border": 2013.0
    }
]

Field	Description
name	name of country (as in countries.geojson)
iso_a3	iso alpha 3 code (as in countries.geojson)
border	calculated length of border in kilometers

2. Calculate sensing cable length of Bulgaria

[
    {
        "name": "Azerbaijan",
        "iso_a3": "AZE",
        "cable": 2050.6
    }
]

Field	Description
name	name of country (as in countries.geojson)
iso_a3	iso alpha 3 code (as in countries.geojson)
cable	calculated length of sensing cable in kilometers

3. Calculate border length of all countries

[
    {
        "name": "Aruba",
        "iso_a3": "ABW",
        "cable": 500.2
    },
    {
        "name": "Afghanistan",
        "iso_a3": "AFG",
        "cable": 5529.0
    },{
        "name": "Angola",
        "iso_a3": "AGO",
        "cable": 5198.0
    },
    ...
]

Turn-in Instructions

Please commit your application code to GitHub and share the link.