using System;

using System.Collections;

using System.Linq;

namespace ConsoleApp1;

​

public static class Program

{

    public static void Main()

    {

        string[,] weatherDataArray = new string[6, 5]

        {

            { "3", "20",  "0", "12", "cumulus" },

            { "1", "20",  "0", "11", "none" },

            { "23", "15", "0", "8",  "none" },

            { "4", "12",  "0", "1",  "cirrus" },

            { "12", "20", "0", "12", "cumulus" },

            { "9", "15", "2", "11",  "none" }

        };

​

        var sortedWeatherData = SortData(weatherDataArray);

​

        for (int i = 0; i < sortedWeatherData.GetLength(0); ++i)

        {

            for (int j = 0; j < sortedWeatherData.GetLength(1); ++j)

                 Console.Write(sortedWeatherData[i,j] + ", ");

            Console.WriteLine();

        }

    }

​

    public static string[,] SortData(string[,] data)

    {

        int[] indexer = Enumerable.Range(0, data.GetLength(0)).ToArray();

        var comparer = new WeatherComparer(data);

        Array.Sort(indexer, comparer);

​

        string[,] result = new string[data.GetLength(0), data.GetLength(1)];

​

        for (int row = 0; row < indexer.Length; ++row)

        {

            int dest = indexer[row];

​

            for (int col = 0; col < data.GetLength(1); ++col)

                result[dest, col] = data[row, col];

        }

​

        return result;

    }

}

​

public sealed class WeatherComparer: IComparer

{

    readonly string[,] _data;

​

    public WeatherComparer(string[,] data)

    {

        _data = data;

    }

​

    public int Compare(object? x, object? y)

    {

        int row1 = (int)x;

        int row2 = (int)y;

​

        double temperature1 = double.Parse(_data[row1, 1]);

        double temperature2 = double.Parse(_data[row2, 1]);

​

        if (temperature1 < temperature2)

            return 1;

​

        if (temperature2 < temperature1)

            return -1;

​

        int day1 = int.Parse(_data[row1,0]);

        int day2 = int.Parse(_data[row2,0]);

​

        return day1.CompareTo(day2);

    }

}

​