qw1, C# - rextester

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//Rextester.Program.Main is the entry point for your code. Don't change it.
//Compiler version 4.0.30319.17929 for Microsoft (R) .NET Framework 4.5

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;

namespace Rextester
{
    enum Suit { Shirt = 0, Pants = 1, Underpants = 2 };
    enum CardName { Puma = 0, Adidas = 1 };
    
    public class Program
    {
        public static void Main(string[] args)
        {
            Console.WriteLine("!!stackoverflow RU!!");
            Foreach_1();
            Foreach_2();
        }
        
        public static void Foreach_1()
        {
            foreach (Suit suit in Enum.GetValues(typeof(Suit)))
            {
                foreach (CardName cardName in Enum.GetValues(typeof(CardName)))
                {
                    Console.WriteLine(suit+", "+cardName);
                }
            }
        }
        
        public static void Foreach_2()
        {
            Type t1 = typeof(Suit);
            Array a1 = t1.GetEnumValues();
            for(var i = 0; i < a1.Length; i++)
            {
                Type t2 = typeof(CardName);
                Array a2 = t2.GetEnumValues();
                for(var j = 0; j < a2.Length; j++)
                {
                    Suit v1 = (Suit)a1.GetValue(i);
                    CardName v2 = (CardName)a2.GetValue(j);
                    Console.WriteLine(v1+", "+v2);
                }
            }
        }
    }

}

Show compiler warnings [ + ] Show input
Compilation time: 0,14 sec, absolute running time: 0,08 sec, cpu time: 0,06 sec, average memory usage: 11 Mb, average nr of threads: 3