static void F1()
 {
     using (var reader = new StreamReader(@"C:\Users\Bence\Downloads\e_inffor_13okt_fl\Forrasok\4_Kozuti_ellenorzes\jarmu.txt"))
     {
         while (!reader.EndOfStream)
         {
             var        temp     = reader.ReadLine();
             var        splitted = temp.Split(' ');
             ellenorzes current  = new ellenorzes();
             DateTime   temptime = new DateTime();
             temptime             = temptime.AddHours(Convert.ToInt32(splitted[0]));
             temptime             = temptime.AddMinutes(Convert.ToInt32(splitted[1]));
             temptime             = temptime.AddSeconds(Convert.ToInt32(splitted[2]));
             current.time         = temptime;
             current.licensePlate = splitted[3];
             data.Add(current);
         }
     }
 }
        static void F7()
        {
            List <ellenorzes> checks      = new List <ellenorzes>();
            ellenorzes        lastChecked = data[0];

            checks.Add(data[0]);

            for (int i = 1; i < data.Count; i++)
            {
                if (data[i].time >= lastChecked.time.AddMinutes(5))
                {
                    checks.Add(data[i]);
                    lastChecked = data[i];
                }
            }

            using (var writer = new StreamWriter(@"C:\Users\Bence\Downloads\e_inffor_13okt_fl\Forrasok\4_Kozuti_ellenorzes\vizsgalt.txt"))
            {
                for (int i = 0; i < checks.Count; i++)
                {
                    writer.WriteLine($"{checks[i].time.Hour} {addZero(checks[i].time.Minute)} {addZero(checks[i].time.Second)} {checks[i].licensePlate}");
                }
            }
        }