public bool Traverse()
{
if (adjacencyList == null)
{
throw new ArgumentException("Missing initialization arguments");
}
markedVertices = new bool[adjacencyList.Count + 1];
List<int> adjacentWithRootColor = new List<int>();
StoredColors storedColors = new StoredColors();
int head = 1;
traversalQueue.Enqueue(head);
markedVertices[head] = true;
short headColor = verticesColoring[head];
adjacentWithRootColor.Add(head);
while (traversalQueue.Any())
{
int node = traversalQueue.Dequeue();
Console.WriteLine(node);
foreach (int tail in adjacencyList[node])
{
if (markedVertices[tail])
continue;
// if tail has diff color add it to counter
if (verticesColoring[tail] != headColor)
{
storedColors.Add(verticesColoring[tail]);
markedVertices[tail] = true; // it's probably redundant, but in time pressure conditions I'd like to have it there. TODO check
continue;
}
// if tail has same color, then store it for recoloring and continue traversal
adjacentWithRootColor.Add(tail);
markedVertices[tail] = true;
traversalQueue.Enqueue(tail);
}
}
// short winnerColor = storedColors.First(x => x.Value == storedColors.Values.Max()).Key;
var winnerColor = storedColors.FirstOrDefault(x => x.Value == storedColors.Values.Max());
if (winnerColor.Equals(default(KeyValuePair<short, int>)))
{
return true;
}
Console.WriteLine("And the winner color is: {0}", winnerColor.Key);
// recolor vertices
foreach (int vertice in adjacentWithRootColor)
{
verticesColoring[vertice] = winnerColor.Key;
}
return false;
}
public void Should_Be_Able_To_Store_Value()
{
short expected = 1;
StoredColors colors = new StoredColors();
colors.Add(100);
Assert.AreEqual(expected, colors.Count);
}
public void Should_Be_Able_To_Store_Different_Values()
{
short expectedSize = 4;
short expectedCount = 4;
StoredColors colors = new StoredColors();
colors.Add(100);
colors.Add(200);
colors.Add(300);
colors.Add(400);
Assert.AreEqual(expectedSize, colors.Count);
}
public void Should_Be_Able_To_Store_Same_Value()
{
short expectedSize = 1;
short expectedCount = 4;
StoredColors colors = new StoredColors();
colors.Add(100);
colors.Add(100);
colors.Add(100);
colors.Add(100);
Assert.AreEqual(expectedSize, colors.Count);
Assert.AreEqual(expectedCount, colors[100]);
}
public static void SetPreviousAndPopColors(ushort times = 1)
{
while (times-- > 0)
{
if (StoredColors.Count > 0)
{
var(fore, back) = StoredColors.Pop();
Console.ForegroundColor = fore;
Console.BackgroundColor = back;
}
else
{
Console.ForegroundColor = PreForeground;
Console.BackgroundColor = PreBackground;
break;
}
}
}
public void Should_Not_Be_Able_To_Use_Add()
{
StoredColors colors = new StoredColors();
colors.Add(100, 100);
}
public static void SetAndPushColors(ConsoleColor foreground, ConsoleColor background)
{
StoredColors.Push(Tuple.Create(Console.ForegroundColor, Console.BackgroundColor));
Console.ForegroundColor = foreground;
Console.BackgroundColor = background;
}