// Problem 14 - First Letter
private static void PrintFirstLetterOfWizardsWhoHaveDepositType(GringottsContext context, string depositType)
{
var letters = context.WizzardDeposits
.Where(w => w.DepositGroup == depositType)
.Select(w => w.FirstName.Substring(0, 1))
.Distinct();
foreach (var letter in letters)
{
Console.WriteLine(letter);
}
}
public static void Main()
{
GringottsContext context = new GringottsContext();
PrintFirstLetterOfWizardsWhoHaveDepositType(context, "Troll Chest");
}