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

namespace ConsoleApp1
{
    class Program
    {
        static void Feladat1()
        {
            int szum = 0;
            int[] tomb = {1,2,3,4,5,6,7,8,9,0,0};
            int n = tomb.Length;
            for (int i = 0; i < n; ++i)
            {
                szum += tomb[i];
            }
            Console.WriteLine($"A tömb összege: {szum}");
        }

        static void Feladat2()
        {
            int[] tomb = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 0 };
            int n = tomb.Length;
            int db = 0;
            for (int i = 0; i < n; ++i)
            {
                if (tomb[i] < 5)
                {
                    ++db;
                }
            }
            Console.WriteLine($"Darabszám: {db}");
        }

        static void Feladat3()
        {
            int[] tomb = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 0 };
            int n = tomb.Length;
            bool van = false;

            for (int i = 0; i < n; ++i)
            {
                if (tomb[i] == 5)
                {
                    van = true;
                    break;
                }
            }

            Console.WriteLine($"Van? : {van}");
        }

        static void Feladat4()
        {
            int[] tomb = { };
            Random random = new Random();
            for (int i = 0; i < 10; ++i)
            {
                tomb = tomb.Append(random.Next(1,7)).ToArray();
            }

            bool van = false;
            int n = tomb.Length;

            for (int i = 0; i < n; ++i)
            {
                if (tomb[i] == 6)
                {
                    van = true;
                    break;
                }
            }

            Console.WriteLine($"Van? : {van}");

            for (int i = 0; i < n; ++i)
            {
                Console.WriteLine(tomb[i]);
            }
        }

        static void Feladat5()
        {
            Console.WriteLine("Adj egy szót!");
            string str = Console.ReadLine();
            bool vanmaganhangzo = false;
            List<char> maganhangzok = new List<char>();

            maganhangzok.Add('a');
            maganhangzok.Add('e');
            maganhangzok.Add('i');
            maganhangzok.Add('o');
            maganhangzok.Add('u');

            foreach (char c in str)
            {
                if (maganhangzok.Contains(c))
                {
                    vanmaganhangzo = true;
                    break;
                }
            }

            Console.WriteLine($"Van: {vanmaganhangzo}");
        }
        static void Main(string[] args)
        {
            Feladat5();
            Console.ReadLine();
        }
    }
}