public void MaxPriorityQueueTest()
{
int[] xs = { 3, 2, 1, 6, 5, 9, 4 };
var queue = new MaxPriorityQueue <int>(xs.Length);
for (int i = 0; i < xs.Length; i++)
{
queue.Insert(xs[i]);
}
Quick <int> .SimpleSort(xs);
for (int i = xs.Length - 1; i > 0; i--)
{
int v = queue.DelMax();
Assert.Equal(v, xs[i]);
}
}
public void MaxPriorityQueueTest_InitWithKey()
{
int[] a = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
Shuffle.Do(a);
MaxPriorityQueue <int> pq = new MaxPriorityQueue <int>(a);
Assert.IsFalse(pq.IsEmpty());
Assert.AreEqual(10, pq.Size());
for (int i = 0; i < 10; i++)
{
int result = pq.Max();
Assert.AreEqual(10 - i - 1, result);
result = pq.DelMax();
Assert.AreEqual(10 - i - 1, result);
}
Assert.IsTrue(pq.IsEmpty());
Assert.AreEqual(0, pq.Size());
}
public void MaxPriorityQueueTest_Comparer()
{
Point[] points = new Point[10];
for (int i = 0; i < 10; i++)
{
points[i] = new Point(i, 10 - i);
}
Shuffle.Do(points);
MaxPriorityQueue <Point> pq = new MaxPriorityQueue <Point>(Point.X_ORDER);
foreach (var value in points)
{
pq.Insert(value);
}
Assert.IsFalse(pq.IsEmpty());
Assert.AreEqual(10, pq.Size());
Point[] expectPoints = new Point[10];
for (int i = 0; i < 10; i++)
{
expectPoints[i] = new Point(i, 10 - i);
}
Shuffle.Do(expectPoints);
HeapSort.Sort(expectPoints, Point.X_ORDER, SortOrder.DESC);
for (int i = 0; i < 10; i++)
{
var result = pq.Max();
Assert.AreEqual(expectPoints[i].X, result.X);
Assert.AreEqual(expectPoints[i].Y, result.Y);
result = pq.DelMax();
Assert.AreEqual(expectPoints[i].X, result.X);
Assert.AreEqual(expectPoints[i].Y, result.Y);
}
Assert.IsTrue(pq.IsEmpty());
Assert.AreEqual(0, pq.Size());
}
public void MaxPQ_Basic()
{
var pq = new MaxPriorityQueue<int>();
pq.Insert(2, null);
pq.Insert(6, null);
pq.Insert(1, null);
Assert.AreEqual(6, (int)(pq.DelMax().Item1));
pq.Insert(9, null);
pq.Insert(7, null);
pq.Insert(1, null);
Assert.AreEqual(9, (int)(pq.DelMax().Item1));
pq.Insert(2, null);
pq.Insert(6, null);
pq.Insert(1, null);
Assert.AreEqual(7, (int)(pq.DelMax().Item1));
Assert.AreEqual(6, (int)(pq.Max().Item1));
Assert.AreEqual(6, (int)(pq.DelMax().Item1));
Assert.AreEqual(2, (int)(pq.DelMax().Item1));
Assert.AreEqual(2, (int)(pq.DelMax().Item1));
}
