MathMemAns1

namespace ConsoleAppMathMem;

class Program
{
    private static readonly Random rand = new();
    public static void Main()
    {
        Table table = new(rand.Next(2, 50 + 1));

        Console.WriteLine($"Size:\t{table.Size}");

        Console.WriteLine(table);

        Console.WriteLine($"Answer A:\t{table.GetA()}");
        List<int> listB = table.GetB();
        Console.WriteLine($"Answer B:\t{string.Join(' ', listB.Count == 0 ? "None" : listB)}");
        Console.WriteLine($"Answer C:\t{table.GetC()}");
    }
}

public class Table
{
    private readonly Random rand = new();
    private int[][] mass;
    private int size;

    public int Size
    {
        get { return size; }
        set
        {
            size = value;
            mass = new int[size][];
            for (int i = 0; i < size; i++)
            {
                mass[i] = new int[size];
                for (int j = 0; j < size; j++)
                {
                    if (i == j)
                        mass[i][j] = 0;
                    else
                        mass[i][j] = rand.Next(0, 2 + 1);
                }
            }
        }
    }
    public Table(int size) => Size = size;

    public int GetA()
    {
        int output = 0;
        for (int i = 0; i < size; i++)
        {
            if (mass[i].Count(num => num.Equals(0)) - 1
                < mass[i].Count(num => num.Equals(2)))
            {
                output++;
            }
        }

        return output;
    }

    public List<int> GetB()
    {
        List<int> output = new();

        for (int i = 0; i < size; i++)
            if (mass[i].Count(num => num.Equals(0)) == 1)
                output.Add(i + 1);

        return output;
    }

    public bool GetC()
    {
        int halfWin = (size + 1) / 2;

        for (int i = 0; i < size; i++)
            if (mass[i].Count(num => num.Equals(2)) >= halfWin)
                return true;

        return false;
    }

    public override string ToString()
    {
        string output = "";
        for (var i = 0; i < size; i++)
        {
            for (var j = 0; j < size; j++)
                output += $"{mass[i][j]} ";
            output += '\n';
        }

        return output;
    }
}