public static IYearSequence <T> Fill <T>(this IYearSequence <T> years, int from, int to, Func <T, T> fun)
{
var newYears = years.Copy();
foreach (var y in Enumerable.Range(from, to - from + 1))
{
newYears[y] = fun(newYears[y]);
}
return(newYears);
}
public AbstractProduct(int id, IYearSequence <Money> max)
{
Id = id;
Max = max;
Takes = max.Copy();
}