AdventOfCode23/Day3/Cell.cs

namespace Day3;

public class Cell
{
    public SymbolToken Symbol { get; }
    public IList<NumberToken> Numbers { get; }

    public Cell(SymbolToken symbol)
    {
        Symbol = symbol;
        Numbers = new List<NumberToken>();
    }

    public int GearRatio() => Numbers.Count == 2 ? Numbers.First().Value * Numbers.Last().Value : 0;
}