4.2

using System;

namespace _4._2
{
    class Program
    {
        static void Main(string[] args)
        {
            drawBar(1, ConsoleColor.Magenta, 3, 1);
            drawBar(20, ConsoleColor.Yellow, 1, 2);
            drawBar(100, ConsoleColor.Green, 5, 3);
            drawBar(120, ConsoleColor.Yellow, 2, 4);
        }

        static void drawBar(int percentOfLive, ConsoleColor color, int positionX, int positionY)
        {
            if (percentOfLive >= 0 && percentOfLive <= 100)
            {
                int maxLife = 10;
                ConsoleColor defaultColor = Console.BackgroundColor;
                string bar = "";

                if (percentOfLive < 10)
                {
                    percentOfLive = 1;
                }
                else if (percentOfLive > 10)
                {
                    percentOfLive /= 10;
                }

                for (int i = 0; i < percentOfLive; i++)
                {
                    bar += " ";
                }
                Console.SetCursorPosition(positionX, positionY);
                Console.BackgroundColor = defaultColor;
                Console.Write("[");
                Console.BackgroundColor = color;
                Console.Write(bar);

                bar = "";

                for (int i = percentOfLive; i < maxLife; i++)
                {
                    bar += " ";
                }
                Console.BackgroundColor = defaultColor;
                Console.Write(bar + "]");
            }
            else
            {
                Console.WriteLine("\nОшибка ввода");
            }
        }
    }
}