static void DeleteAllNegative(SearchTree tree)
{
var negativeNumbers = new List <int>();
foreach (var item in tree)
{
if (item < 0)
{
negativeNumbers.Add(item);
}
}
negativeNumbers.ForEach(item => tree.Remove(item));
}
static void Main(string[] args)
{
var list = new CustomList <int> {
1, -2, 3, -4, 5
};
var tree = new SearchTree();
foreach (var number in list)
{
tree.Insert(number);
}
DeleteAllNegative(tree);
foreach (var number in tree)
{
Console.WriteLine(number);
}
Console.ReadKey();
}