using System;

using System.Collections.Generic;

using Newtonsoft.Json;

​

public class Program

{

    public static void Main()

    {

        // Please email conductiv-eng@outlook.com if you have any questions.

        // When complete, please send your name and the URL of your "Share Link" (.NET Fiddle menu item Share > Share Link) to conductiv-eng@outlook.com. Thank you!

        // Note: usings directives include typical libraries needed (feel free to add more if needed), also NuGet Package Newtonsoft.Json is included

        // Given input json for three organizations

        // Return list of all years in date range:

        // 1) Calendar years

        // 2) Fiscal years

        var inputJSON = @"

        [

            {

                orgId: 1,

                startDate: '2018-1-01T00:00:00',

                endDate: '2020-8-29T00:00:00',

                fiscalYearEnd: 12

            },

            {

                orgId: 2,

                startDate: '2018-1-01T00:00:00',

                endDate: '2020-8-29T00:00:00',

                fiscalYearEnd: 6

            },

            {

                orgId: 3,

                startDate: '2018-9-01T00:00:00',

                endDate: '2020-8-29T00:00:00',

                fiscalYearEnd: 8

            }

        ]";

        //Correct Output

        /*

        [

            {

                "orgId": 1,

                "calendarYears": [2018,2019,2020],

                "fiscalYears": [2018,2019,2020]

            },

            {

                "orgId": 2,

                "calendarYears": [2018,2019,2020],

                "fiscalYears": [2018,2019,2020,2021]

            },

            {

                "orgId": 3,

                "calendarYears": [2018,2019,2020],

                "fiscalYears": [2019,2020]

            }

        ]

        */

​

        // TODO Tasks

        // 1) Create classes to deserialize JSON (use JSON.NET)

        // 2) Perform calculation from start/end dates to get range of calendar and fiscal years

        // 3) Output JSON to match correct output above

        List<OrgIn> orgsIn = JsonConvert.DeserializeObject<List<OrgIn>>(inputJSON);

        List<OrgOut> outs = new List<OrgOut>();

        foreach (OrgIn orgIn in orgsIn)

        {

            var o = new OrgOut();

            o.OrgId = orgIn.OrgId;

            int minYear = orgIn.StartDate.Year;

            int maxYear = orgIn.EndDate.Year;

            o.CalenderYears = GetListOfYears(minYear, maxYear);

            if (orgIn.StartDate.Month > orgIn.FiscalYearEnd )

            {

                minYear++;  

            }

            if (orgIn.EndDate.Month > orgIn.FiscalYearEnd )

            {

                maxYear++;  

            }

            o.FiscalYears = GetListOfYears(minYear, maxYear);

            outs.Add(o);

        }

        string jsonOut = JsonConvert.SerializeObject(outs);

        Console.Write(jsonOut);

    }

    public static List<int> GetListOfYears(int minYear, int maxYear)

    {   

        List<int> years = new List<int>();

        for (int y = minYear; y <= maxYear; y++ )

        {

            years.Add(y);

        }

        return years;   

    }

​

}

​

// Additional classes can go here

​

public class OrgIn

{

    public int OrgId { get; set; }

    public DateTime StartDate { get; set; }

    public DateTime EndDate { get; set; }

    public int FiscalYearEnd { get; set; }

}

public class OrgOut

{

    public int OrgId { get; set; }

    public IList<int> CalenderYears { get; set; }

    public IList<int> FiscalYears  { get; set; }

}

​

​