NewHw19

using System;

class Program
{
    static void Main(string[] args)
    {
        string line = "( (()) ((())) )";
        int currentDeep = 0;
        int maxDeep = 0;
        int lineCharCount = line.Length;

        for (int i = 0; i < lineCharCount; i++)
        {
            if (line[i] == '(')
            {
                currentDeep++;

                if (currentDeep > maxDeep)
                {
                    maxDeep = currentDeep;
                }
            }
            else if (line[i] == ')')
            {
                if (currentDeep > 0)
                {
                    currentDeep--;
                }
                else
                {
                    Console.WriteLine("error");
                }
            }
        }

        if(currentDeep == 0)
        {
            Console.WriteLine($"Deep: {maxDeep}");
        }

        Console.ReadKey();
    }
}