Files

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp115
{
    class Program
    {
        static void Main(string[] args)
        {
            Dictionary<string, long> data = new Dictionary<string, long>();

            int n = int.Parse(Console.ReadLine());

            List<string> values = new List<string>();

            for (int i = 0; i < n; i++)
            {
                string info = Console.ReadLine();
                values.Add(info);
            }

            string[] lookFor = Console.ReadLine()
                .Split(new string[] { " in " }, StringSplitOptions.RemoveEmptyEntries)
                .ToArray();

            string extention = lookFor[0];
            string root = lookFor[1];

            foreach (var item in values)
            {
                var dotSplit = item.Substring(item.LastIndexOf('.') + 1);

                if (item.StartsWith(root) && dotSplit.StartsWith(extention))
                {
                    string output = item.Substring(item.LastIndexOf('\\') + 1);
                    string[] splitOutput = output.Split(new char[] { ';' }, StringSplitOptions.RemoveEmptyEntries).ToArray();

                    string filenameAndExtention = splitOutput[0];
                    long size = long.Parse(splitOutput[1]);

                    if (!data.ContainsKey(filenameAndExtention))
                    {
                        data.Add(filenameAndExtention, size);
                    }
                    else
                    {
                        data[filenameAndExtention] = size;
                    }
                }
            }

            if (data.Count == 0)
            {
                Console.WriteLine("No");
            }
            else
            {
                foreach (var file in data.OrderByDescending(a => a.Value).ThenBy(a => a.Key))
                {
                    if(file.Key.StartsWith(" "))
                    {
                        Console.WriteLine($"{file.Key.Remove(0, 1)} - {file.Value} KB");
                    }
                    else
                    {
                        Console.WriteLine($"{file.Key} - {file.Value} KB");
                    }

                }
            }
        }
    }
}