aoc-2019/ProblemOne/Program.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ProblemOne
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine(GetTotalFuelRequiredPartOne());
            Console.WriteLine(GetTotalFuelRequiredPartTwo());
            Console.ReadLine();
        }

        static int GetTotalFuelRequiredPartTwo()
        {
            var totalFuelRequired = 0;
            foreach (var massInput in MassInputs)
            {
                var fuelRequired = massInput;
                do
                {
                    fuelRequired = GetFuelRequiredPartOne(fuelRequired);
                    totalFuelRequired += fuelRequired;
                }
                while (GetFuelRequiredPartOne(fuelRequired) > 0);
            }

            return totalFuelRequired;
        }

        static int GetTotalFuelRequiredPartOne()
        {
            var totalFuelRequired = 0;
            foreach (var massInput in MassInputs)
                totalFuelRequired += GetFuelRequiredPartOne(massInput);

            return totalFuelRequired;
        }

        static int GetFuelRequiredPartOne(int massInput)
        {
            return (int)(Math.Floor(massInput / 3.0M) - 2.0M);
        }

        static List<int> MassInputs = new List<int>()
        {
            92349,
            57040,
            64079,
            121555,
            143735,
            64642,
            104858,
            144446,
            88871,
            62338,
            113424,
            59960,
            53999,
            86867,
            67224,
            124130,
            108921,
            130492,
            120361,
            74426,
            70397,
            88106,
            125442,
            74237,
            137818,
            66633,
            71756,
            143276,
            143456,
            135698,
            121124,
            67739,
            112861,
            78572,
            73565,
            111899,
            57543,
            130314,
            121605,
            121426,
            117143,
            129957,
            98042,
            104760,
            144846,
            131238,
            101076,
            53328,
            83592,
            104077,
            101952,
            54137,
            115363,
            60556,
            133086,
            113361,
            117829,
            75003,
            93729,
            140022,
            126219,
            59907,
            140589,
            91812,
            50485,
            56232,
            92858,
            106820,
            123423,
            98553,
            135315,
            95583,
            72278,
            98702,
            55709,
            146773,
            89719,
            134752,
            79562,
            70455,
            88468,
            139824,
            138646,
            117516,
            123267,
            113754,
            120353,
            139145,
            53219,
            63053,
            131434,
            91705,
            53650,
            145234,
            78461,
            119587,
            108976,
            113613,
            121790,
            120366
        };
    }
}