AdventOfCode/2018_06/Program.cs

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using static System.Console;

namespace _2018_06
{
    class Program
    {
        static void Main(string[] args)
        {
            string[] resTab = File.ReadAllLines(@"..\..\..\Data\Adventofcode_181206\2018_06_data.txt");
            List<Tuple<string, int, int>> koords = new List<Tuple<string, int, int>>();
            Tuple<string, int, int> tuple = null;
            int antal = 0;
            foreach (string v in resTab)
            {
                string[] nums = v.Split(new char[] { ',' });
                tuple = Tuple.Create(ChNumber(antal), int.Parse(nums[0]), int.Parse(nums[1]));
                koords.Add(tuple);
                antal++;
            }

            int points = 0;
            int a = 0;
            int b = 0;

            foreach (Tuple<string, int, int> tp in koords)
            {
                points++;
                WriteLine($"point {points}, id: {tp.Item1}, X: {tp.Item2} Y: {tp.Item3}");
                if (tp.Item2 > a)
                {
                    a = tp.Item2;
                }

                if (tp.Item3 > b)
                {
                    b = tp.Item3;
                }
            }
            WriteLine($"max value: {a},{b}");
            ReadKey();

            string[,] area = new string[360, 360];

            for (int i = 0; i < 360; i++)
            {
                for (int j = 0; j < 360; j++)
                {
                    int dist = 10000;
                    foreach (Tuple<string, int, int> tp1 in koords)
                    {
                        int part1 = tp1.Item2 - i;
                        int part2 = tp1.Item3 - j;
                        int ldist = Math.Abs(part1) + Math.Abs(part2);
                        if (ldist < dist)
                        {
                            dist = ldist;
                            area[i, j] = tp1.Item1;
                        }
                        else
                        {
                            if (ldist == dist)
                            {
                                area[i, j] = ".";
                            }
                        }
                    }
                    //Write($" {area[i, j]}");
                }
                //WriteLine();
            }

            WriteLine("Skapat avståndsmap");

            ReadKey();

            SortedSet<string> infinites = new SortedSet<string>();

            for (int i = 0; i < 360; i++)
            {
                try
                {
                    infinites.Add(area[0, i]);
                    infinites.Add(area[359, i]);
                    infinites.Add(area[i, 0]);
                    infinites.Add(area[i, 359]);
                }
                catch (Exception) { }
            }


            foreach (var item in infinites)
            {
                Write($" {item}");

            }

            WriteLine();
            WriteLine("Kontrollerat ytterkanter");

            ReadKey();

            Dictionary<string, int> areas = new Dictionary<string, int>();
            foreach (var item in area)
            {
                if (infinites.Contains(item))
                { }
                else
                {
                    if (areas.Keys.Contains(item))
                    {
                        areas[item]++;
                    }
                    else areas.Add(item, 1);
                }
            }

            int maxUnits = 0;
            string maxArea = "";

            foreach(var item in areas.Keys)
            {
                WriteLine($"{item}= {areas[item]}");
                if (areas[item] > maxUnits)
                {
                    maxUnits = areas[item];
                    maxArea = item;
                }
            }

            WriteLine($"Vinnare {maxArea}= {areas[maxArea]}");

            ReadKey();

        }

        public static string ChNumber(int i)
        {
            const string nbr = "ABCDEFGHIJKLMNOPQRSTUVXYZ";
            var cnbr = nbr.ToCharArray();
            string tmpSvar = "";

            int a = i / 24;
            int b = i - a * 24;

            tmpSvar = cnbr[a].ToString() + cnbr[b].ToString();

            return tmpSvar;
        }
    }
}