using System;
using System.Collections.Generic;
using System.Linq;

namespace linq
{
    using System.IO;
    internal class Program
    {
        public static string[] GetAllStrings(string path)
        {
            string k;
            using (FileStream fs = new FileStream(path, FileMode.Open, FileAccess.Read))
                using (StreamReader sw = new StreamReader(fs))
                {
                    k = sw.ReadToEnd();
                }
            return k.Split('\n');
        }
        public static void Main(string[] args)
        {
            string [] words = GetAllStrings("/Users/renurt/RiderProjects/files_refresh/wordlist.txt");

            IEnumerable<string> beginsWithBa = from n in words where n.StartsWith("ba") where n.Length>2 orderby n[n.Length-2], n.Length descending select n;
            foreach (var word in beginsWithBa)
            {
                Console.WriteLine(word);
            }

            IEnumerable<IGrouping<int, string>> containsCan = from n in words where n.Contains("can") group n by n.IndexOf("can");

            foreach (IGrouping<int, string> group in containsCan)
            {
                Console.WriteLine(group.Key+":");
                foreach (string word in group)
                {
                    //Console.WriteLine(word);
                }
            }

            var OK = from n in words
                where n.Contains("su")
                from k in new int[] {1, 2}
                select k + n
                into l
                where l[1] == 'r'| l[1] == 'm'
                orderby l.Length group l by l.Length;

            foreach (var group in OK)
            {
                Console.WriteLine(group.Key + ":");
                foreach (string word in group)
                {
                    Console.WriteLine(word);
                }
            }

            var mk = words.Where(t => t.StartsWith("nas"));
            double s = 4.34234;
            Console.WriteLine($"{s:0.0010}");
            Console.WriteLine($"{s:f2}");
        }
    }
}