public void ListToTree(int[] values)
{
ImmutableAVL tree = new ImmutableAVL(values);
Assert.AreEqual(values.Length, tree.Count());
Assert.IsTrue(isAVLTreeValid(tree));
}
public override Tuple <double, double> RunDeletion(int arraySize, int nbArrays)
{
Init(arraySize, nbArrays);
Stopwatch watch;
double elapsedMsMutable = 0;
double elapsedMsImmutable = 0;
for (int i = 0; i < nbArrays; i++)
{
AVL tree = new AVL(arrays[i]);
tree.Add(0);
watch = Stopwatch.StartNew();
tree.Delete(0);
watch.Stop();
double ticks = watch.ElapsedTicks;
double microseconds = (ticks / Stopwatch.Frequency) * 1000000;
elapsedMsMutable += microseconds;
ImmutableAVL immutableAvl = new ImmutableAVL(arrays[i]);
immutableAvl.Add(0);
watch = Stopwatch.StartNew();
immutableAvl.Delete(0);
watch.Stop();
ticks = watch.ElapsedTicks;
microseconds = (ticks / Stopwatch.Frequency) * 1000000;
elapsedMsImmutable += microseconds;
}
elapsedMsMutable /= nbArrays;
elapsedMsImmutable /= nbArrays;
return(new Tuple <double, double>(elapsedMsMutable, elapsedMsImmutable));
}
public void Peek(int[] values)
{
ImmutableAVL tree = new ImmutableAVL(values);
int peek = tree.Peek();
Assert.AreEqual(peek, values.Min());
Assert.AreEqual(values.Length, tree.Count());
}
public void Insert(int[] values)
{
ImmutableAVL tree = new ImmutableAVL(values);
tree.Add(5);
Assert.AreEqual(values.Length + 1, tree.Count());
Assert.IsTrue(isAVLTreeValid(tree));
}
public void Pop(int[] values)
{
ImmutableAVL tree = new ImmutableAVL(values);
int pop = tree.Pop();
Assert.AreEqual(pop, values.Min());
Assert.AreEqual(values.Length - 1, tree.Count());
Assert.IsTrue(isAVLTreeValid(tree));
}
private void dichotomyTree(ImmutableAVL tree, int[] array, int start, int end)
{
double middle = (end - start) / 2;
int rootIndex = (int)Math.Floor(middle);
tree.root = tree.Add(array[start + rootIndex]);
if (end - start > 0)
{
if (start + rootIndex - 1 >= 0)
{
dichotomyTree(tree, array, start, start + rootIndex - 1);
}
if (start + rootIndex + 1 >= 0 && end >= 0)
{
dichotomyTree(tree, array, start + rootIndex + 1, end);
}
}
}
private bool isAVLTreeValid(ImmutableAVL tree)
{
return(recursiveCheck(tree.Head()));
}