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

namespace Encompass
{
    internal class SimpleCycleComparer<TNode> : IEqualityComparer<IEnumerable<TNode>>
    {
        public bool Equals(IEnumerable<TNode> x, IEnumerable<TNode> y)
        {
            return x.SequenceEqual(y);
        }

        public int GetHashCode(IEnumerable<TNode> obj)
        {
            return obj.Aggregate(0, (current, next) => current.GetHashCode() ^ next.GetHashCode());
        }
    }
}