static void Main()
{
var tree = new Tree<int>();
tree.Add(13);
tree.Add(18);
tree.Add(5);
tree.Add(20);
tree.Add(15);
tree.Add(5);
tree.Add(9);
tree.Add(3);
tree.Add(17);
tree.Add(10);
foreach (var item in tree)
{
Console.WriteLine("{0}", item);
}
tree.Remove(13);
foreach (var item in tree)
{
Console.WriteLine("{0}", item);
}
}
public void AddingTwo_SmallerGoesToLeft()
{
var t = new Tree<int>();
t.Add(23);
t.Add(1);
Assert.AreEqual(1, t.Root.Left.Item);
}
public void AddingTwo_LargerGoesToRight()
{
var t = new Tree<int>();
t.Add(23);
t.Add(78);
Assert.AreEqual(78, t.Root.Right.Item);
}
public void Initialize()
{
tree = new Tree<int>();
tree.Add(5);
tree.Add(2);
tree.Add(1);
tree.Add(3);
tree.Add(4);
}
public void CheckUnderDirectoriesWithWildcard()
{
var tree = new Tree<bool>();
tree.Add(@"C:\X", true);
tree.Add(@"C:\X\*", false);
Assert.IsTrue(tree.Under(@"C:\X"));
Assert.IsFalse(tree.Under(@"C:\X\foo"));
Assert.IsFalse(tree.Under(@"C:\X\1\foo"));
Assert.IsFalse(tree.Under(@"D:\foo"));
}
public void CheckUnderDirectories()
{
var tree = new Tree<bool>();
tree.Add(@"C:\A\1", true);
tree.Add(@"C:\A\2", true);
tree.Add(@"C:\B", true);
tree.Add(@"C:\B\1", false);
Assert.IsTrue(tree.Under(@"C:\A\1\foo"));
Assert.IsTrue(tree.Under(@"C:\B\2\foo"));
Assert.IsTrue(tree.Under(@"C:\B"));
Assert.IsFalse(tree.Under(@"C:\B\1\foo"));
Assert.IsFalse(tree.Under(@"C:\C\foo"));
Assert.IsFalse(tree.Under(@"D:\foo"));
}
public Tree getTree( )
{
Tree tree = new Tree();
tree.Key = "Header";
{
tree.Add("EngineVersion", this._EngineVersion);
tree.Add("Owner", this._Owner);
tree.Add("Version", this._Version);
tree.Add("Time", this._Time);
tree.Add("Title", this._Title);
}
return tree;
}
public void ToString_ReturnsBFSString()
{
var tree = new Tree<int>();
tree.Add(3).Add(2).Add(5).Add(4);
var result = tree.ToString();
Assert.AreEqual("3 2 5 4 ", result);
}
static void Main()
{
Tree<int> tree = new Tree<int>(10);
for (int i = 0; i < 20; i++)
{
if (i == 10) i++;
tree.Add(i);
}
Console.WriteLine(tree);
Console.WriteLine(tree.HasValue(15));
Console.WriteLine(tree.HasValue(25));
tree.Add(25);
Console.WriteLine(tree);
Console.WriteLine(tree.HasValue(25));
}
public void CheckCaseSensitiveSentence()
{
var tree = new Tree<bool>(new char[] { ' ', ',', '.' }, StringComparer.Ordinal);
tree.Add("The quick brown fox jumps.", true);
Assert.IsTrue(tree.Under("The quick brown fox jumps over the lazy dog."));
Assert.IsFalse(tree.Under("THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG."));
Assert.IsFalse(tree.Under("A different sentence."));
}
static void Main(string[] args)
{
var tree = new Tree<int>();
tree.Add(30).Add(25).Add(36).Add(12).Add(5);
Console.WriteLine($"There are {tree.Count} elements in the tree");
ITreeBuilder<int> builder = new IntTreeBuilder();
var largeTree = builder.Build(1000000);
Console.WriteLine($"There are {largeTree.Count} elements in the large tree");
}
void MakeRows(Tree<Cell> table)
{
do {
var row = makeTreeCell(string.Empty);
row.Value.SetAttribute(CellAttribute.StartTag, startTags[1]);
row.Value.SetAttribute(CellAttribute.EndTag, endTags[1]);
table.Add(row);
MakeCells(row);
if (scanner.Current.Type == TokenType.Newline) scanner.MoveNext();
} while (scanner.Current.Type == TokenType.BeginCell || scanner.Current.Type == TokenType.Word);
}
private static Tree BuildTree(IEnumerable<Type> types, string rootName)
{
var nodeFactory = new NodeFactory();
var tree = new Tree(nodeFactory, rootName);
foreach (var type in types)
{
var fullName = type.FullName;
tree.Add(fullName);
}
return tree;
}
public void EnumerateWithNoChildren()
{
var tree = new Tree<int>(7, EnumeratorOrder.DepthFirstSearch);
Assert.AreEqual(7, tree.AsEnumerable().First());
tree.Order = EnumeratorOrder.BreadthFirstSearch;
Assert.AreEqual(7, tree.AsEnumerable().First());
var subtree = new Tree<int>(5, EnumeratorOrder.BreadthFirstSearch);
tree.Add(subtree);
Assert.AreEqual(5, tree.AsEnumerable().Last());
tree.Order = EnumeratorOrder.DepthFirstSearch;
Assert.AreEqual(5, tree.AsEnumerable().Last());
}
public void op_Add_Tree()
{
var obj = new Tree<int>();
var expected = new Tree<int>();
var actual = obj.Add(expected);
Assert.Same(expected, actual);
Assert.Same(obj, actual.Parent);
Assert.Empty(actual);
Assert.NotEmpty(obj);
Assert.Equal(1, obj.Count);
}
public void op_Add_T()
{
var obj = new Tree<string>();
const string expected = "example";
var actual = obj.Add(expected);
Assert.Same(expected, actual.Value);
Assert.Same(obj, actual.Parent);
Assert.Empty(actual);
Assert.NotEmpty(obj);
Assert.Equal(1, obj.Count);
}
void AddSurplusRow(object surplusValue, Tree<Cell> table) {
var cells = new List<Tree<Cell>>();
foreach (var actualValue in strategy.ActualValues(surplusValue)) {
var cell = processor.Compose(actualValue.IsVoid ? new TypedValue(string.Empty) : actualValue);
if (cells.Count == 0) {
cell.Value.SetAttribute(CellAttribute.Label, "surplus");
}
cells.Add(cell);
}
var row = processor.MakeCell(string.Empty, "tr", cells);
processor.TestStatus.MarkWrong(row.Value);
table.Add(row);
}
private void AddSorterToTree(NodeSorter sorter, Tree.TreeNodeCollection parentCollection)
{
if (sorter == null)
return;
Tree.TreeNode tn = new Tree.TreeNode(this.GetSorterName(sorter));
tn.Tag = sorter;
tn.IsExpanded = true;
this.treeNodes.Add(sorter, tn);
parentCollection.Add(tn);
this.AddSorterToTree(sorter.SecondarySorter, parentCollection);
}
private static Tree<int> CreateTreeWithValues(int numberOfValues)
{
if (numberOfValues <= 0)
{
return null;
}
var tree = new Tree<int>(1);
for (int i = 2; i <= numberOfValues; i++)
{
tree.Add(i);
}
return tree;
}
void MakeCells(Tree<Cell> row)
{
while (scanner.Current.Type == TokenType.BeginCell || scanner.Current.Type == TokenType.Word) {
var cell = makeTreeCell(scanner.Current.Content);
cell.Value.SetAttribute(CellAttribute.StartTag, startTags[2]);
cell.Value.SetAttribute(CellAttribute.EndTag, endTags[2]);
if (scanner.Current.Type == TokenType.BeginCell) {
MakeTables(cell);
}
else if (scanner.Current.Type == TokenType.Word) {
cell.Value.SetAttribute(CellAttribute.Body, HttpUtility.HtmlEncode(scanner.Current.Content));
}
row.Add(cell);
scanner.MoveNext();
}
}
public void DeleteLeaf_RightChild()
{
var t = new Tree<int>();
t.Add(23);
t.Add(20);
t.Add(25);
t.Add(24);
t.Add(33);
t.Add(10);
t.Add(7);
t.Add(8);
t.Delete(33);
Assert.AreEqual(23, t.Root.Item);
Assert.AreEqual(20, t.Root.Left.Item);
Assert.AreEqual(10, t.Root.Left.Left.Item);
Assert.AreEqual(8, t.Root.Left.Left.Left.Right.Item);
Assert.AreEqual(7, t.Root.Left.Left.Left.Item);
Assert.AreEqual(25, t.Root.Right.Item);
Assert.AreEqual(24, t.Root.Right.Left.Item);
Assert.IsNull(t.Find(33));
}
void Run()
{
Scanner input = new Scanner(Console.In);
int N = input.NextInt();
char[] op = new char[N];
int[] arg = new int[N];
List<int> keys = new List<int>();
for (int i = 0; i < N; i++) {
string s = input.Next();
op[i] = char.ToUpper(s[0]);
arg[i] = input.NextInt();
if (op[i] == 'P')
keys.Add(arg[i]);
if (op[i] != 'P' && op[i] != 'G')
throw new Exception();
}
Tree tree = new Tree(keys.ToArray());
for (int i = 0; i < N; i++) {
if (op[i] == 'P') {
tree.Add(arg[i]);
} else {
try {
tree.Remove(tree.Find(arg[i]));
} catch (Exception e) {}
}
}
int[] res = tree.ToArray();
foreach (int i in res)
Console.WriteLine(i);
if (res.Length == 0)
Console.WriteLine("empty");
}
void Solve()
{
var I = G();
int N = I[0], a = I[1] - 1, b = I[2] - 1;
var all = new Point[N];
var rev = new Point[N];
var ps = new Tree();
var qs = new Tree();
for (var i = 0; i < N; i++)
{
I = G();
int x = I[0] + I[1], y = I[0] - I[1];
ps.Add(all[i] = new Point(x, y, i));
qs.Add(rev[i] = new Point(y, x, i));
}
var D = all[a].Distance(all[b]);
var s = new HashSet <int>();
var st = new Stack <int>();
st.Push(a);
Action <Point, Point, Tree, Tree> f1 = (f, t, p, q) => {
while (true)
{
var l = p.LowerBound(f);
if (l == null || l.Item.CompareTo(t) > 0)
{
break;
}
if (!s.Contains(l.Item.I))
{
st.Push(l.Item.I);
}
q.Remove(new Point(l.Item.Y, l.Item.X));
p.Remove(l);
}
};
while (st.Count > 0)
{
var i = st.Pop();
if (s.Contains(i))
{
continue;
}
s.Add(i);
var u = all[i];
ps.Remove(u);
qs.Remove(rev[i]);
f1(new Point(u.X - D, u.Y - D), new Point(u.X - D, u.Y + D), ps, qs);
f1(new Point(u.X + D, u.Y - D), new Point(u.X + D, u.Y + D), ps, qs);
f1(new Point(u.Y - D, u.X - D), new Point(u.Y - D, u.X + D), qs, ps);
f1(new Point(u.Y + D, u.X - D), new Point(u.Y + D, u.X + D), qs, ps);
}
var ind = s.ToList();
ind.Sort();
var M = ind.Count;
var px = new List <Point>();
var qx = new List <Point>();
foreach (var x in ind)
{
px.Add(all[x]);
}
foreach (var x in ind)
{
qx.Add(rev[x]);
}
px.Sort();
qx.Sort();
var ans = 0L;
Action <Point, Point, List <Point> > f2 = (f, t, p) => {
var l = FirstBinary(0, M, i => p[i].CompareTo(f) >= 0);
var r = FirstBinary(0, M, i => p[i].CompareTo(t) >= 0);
ans += r - l;
};
foreach (var u in px)
{
f2(new Point(u.X - D, u.Y - D), new Point(u.X - D, u.Y + D + 1), px);
f2(new Point(u.X + D, u.Y - D), new Point(u.X + D, u.Y + D + 1), px);
f2(new Point(u.Y - D, u.X - D + 1), new Point(u.Y - D, u.X + D), qx);
f2(new Point(u.Y + D, u.X - D + 1), new Point(u.Y + D, u.X + D), qx);
}
WriteLine(ans / 2);
}
public Tree <List <Line> > Build_CHT(List <Line> pe) // Построить дерево выпуклых фигур.
{
Tree <List <Line> > CHT = null; // голова дерева
if (pe == null) // пустая фигура
{
return(CHT);
}
if (pe.Capacity == 1) // одно ребро.
{
Tree <List <Line> > node = new Tree <List <Line> >(pe);
CHT = node;
return(CHT);
}
else
{
List <Point> CH = this.Build_Convex_Hull(pe); //convex hull
//получаем che - convex hull edges(принадлежат CH).DONE
//получаем dre - delta regions edges(не принадлежат CH).DONE
//получаем dhp - delta&hull points - точки из dre, которые лежат на CH. DONE
//ищем dr - отдельные наборы граней из dre. Включаем из dre пока не замкнемся,
//либо пока не встретим новую точку из dhp. Тогда добавляем dr[i]. DONE
//*Проходя вычеркиваем из dhp, dre пройденные точки, грани соответственно - ПРОВЕРЬ УПОРЯДОЧЕННОСТЬ ГРАНЕЙ*
//Бежим по dre пока не обойдем все грани.
List <Line> CHE = null, DRE = null;
List <Point> DHP = null;
List <List <Line> > DR = null;
//che
//Тут подпрограмма должна быть:
Point P_prev = CH[0];
Line Line_to_add = null;
foreach (Point P_next in CH)
{
if (P_next == CH[0])
{
continue;
}
Line_to_add = new Line(P_prev, P_next);
P_prev = P_next;
CHE.Add(Line_to_add);
}
//.
//dre
foreach (Line L1 in pe)
{
foreach (Line L2 in CHE)
{
if (L1 == L2) // найти несовпадающие и записать в DRE
{
continue;
}
else
{
//Line to_add = new Line(L1.Beg, L1.End);
DRE.Add(L1);
}
}
//замыкаем дельта регион
Line to_close = new Line(DRE[0].Beg, DRE[DRE.Count - 1].End);
DRE.Add(to_close);
}
//dhp
Point Point_to_add = new Point();
foreach (Line L1 in DRE)
{
foreach (Line L2 in CHE)
{
Point_to_add = get_lineIntersection(L1.Beg, L1.End, L2.Beg, L2.End); //попросить у Паши
}
if (Point_to_add != null)
{
DHP.Add(Point_to_add);
}
}
//dr
List <Line> DR_to_add = null;
foreach (Line L1 in DRE)
{
DR_to_add.Add(L1);
foreach (Point P in DHP)
{
if (L1.End == P)
{
DR.Add(DR_to_add);
DR_to_add = null;
}
}
}
//.
//List<Line> DR_i = null;
foreach (List <Line> DR_i in DR)
{
Tree <List <Line> > node = null;
node = this.Build_CHT(DR_i);
CHT.Add(node);
}
}
return(CHT);
}
public void After_backup_and_restore_recovery_must_not_throw_missing_journal_if_we_have_synced_everything()
{
RequireFileBasedPager();
var r = new Random(1); // we must use seed to ensure we always fill up the journal
var bytes = new byte[512];
for (int i = 0; i < 10; i++)
{
using (var tx = Env.WriteTransaction())
{
Tree tree = tx.CreateTree("tree");
for (int j = 0; j < 100; j++)
{
r.NextBytes(bytes);
tree.Add(new string((char)j, 1000), bytes);
}
tx.Commit();
}
}
Env.FlushLogToDataFile();
for (int i = 0; i < 20; i++)
{
using (var tx = Env.WriteTransaction())
{
Tree tree = tx.CreateTree("tree");
for (int j = 0; j < 100; j++)
{
r.NextBytes(bytes);
tree.Add(new string((char)j, 1000), bytes);
}
tx.Commit();
}
}
// here we're filling up the last journal completely, we'll have Available4Kbs == 0 after the commit
using (var tx = Env.WriteTransaction())
{
Tree tree = tx.CreateTree("tree");
for (int j = 0; j < 226; j++)
{
var specialBytes = new byte[1024];
r.NextBytes(specialBytes);
tree.Add(new string((char)j, 1000), specialBytes);
}
tx.Commit();
}
Env.FlushLogToDataFile();
using (var operation = new WriteAheadJournal.JournalApplicator.SyncOperation(Env.Journal.Applicator))
{
var syncResult = operation.SyncDataFile();
}
var voronDataDir = new VoronPathSetting(DataDir);
BackupMethods.Full.ToFile(Env, voronDataDir.Combine("voron-test.backup"));
BackupMethods.Full.Restore(voronDataDir.Combine("voron-test.backup"), voronDataDir.Combine("backup-test.data"));
var options = StorageEnvironmentOptions.ForPath(Path.Combine(DataDir, "backup-test.data"));
options.MaxLogFileSize = Env.Options.MaxLogFileSize;
using (var env = new StorageEnvironment(options))
{
using (var tx = env.ReadTransaction())
{
using (var it = tx.ReadTree("tree").Iterate(prefetch: false))
{
Assert.True(it.Seek(Slices.BeforeAllKeys));
var count = 0;
do
{
count++;
} while (it.MoveNext());
Assert.Equal(226, count);
}
}
}
}
public LevelDBBlockchain(string path)
{
header_index.Add(GenesisBlock.Hash);
Version version;
Slice value;
db = DB.Open(path, new Options {
CreateIfMissing = true
});
if (db.TryGet(ReadOptions.Default, SliceBuilder.Begin(DataEntryPrefix.CFG_Version), out value) && Version.TryParse(value.ToString(), out version) && version >= Version.Parse("0.5"))
{
ReadOptions options = new ReadOptions {
FillCache = false
};
value = db.Get(options, SliceBuilder.Begin(DataEntryPrefix.SYS_CurrentBlock));
this.current_block_hash = new UInt256(value.ToArray().Take(32).ToArray());
this.current_block_height = BitConverter.ToUInt32(value.ToArray(), 32);
foreach (Block header in db.Find(options, SliceBuilder.Begin(DataEntryPrefix.DATA_HeaderList), (k, v) =>
{
using (MemoryStream ms = new MemoryStream(v.ToArray(), false))
using (BinaryReader r = new BinaryReader(ms))
{
return(new
{
Index = BitConverter.ToUInt32(k.ToArray(), 1),
Headers = r.ReadSerializableArray <Block>()
});
}
}).OrderBy(p => p.Index).SelectMany(p => p.Headers).ToArray())
{
if (header.Hash != GenesisBlock.Hash)
{
header_chain.Add(header.Hash, header, header.PrevBlock);
header_index.Add(header.Hash);
}
stored_header_count++;
}
if (stored_header_count == 0)
{
Dictionary <UInt256, Block> table = db.Find(options, SliceBuilder.Begin(DataEntryPrefix.DATA_Block), (k, v) => Block.FromTrimmedData(v.ToArray(), sizeof(long))).ToDictionary(p => p.PrevBlock);
for (UInt256 hash = GenesisBlock.Hash; hash != current_block_hash;)
{
Block header = table[hash];
header_chain.Add(header.Hash, header, header.PrevBlock);
header_index.Add(header.Hash);
hash = header.Hash;
}
}
else if (current_block_height >= stored_header_count)
{
List <Block> list = new List <Block>();
for (UInt256 hash = current_block_hash; hash != header_index[(int)stored_header_count - 1];)
{
Block header = Block.FromTrimmedData(db.Get(options, SliceBuilder.Begin(DataEntryPrefix.DATA_Block).Add(hash)).ToArray(), sizeof(long));
list.Add(header);
header_index.Insert((int)stored_header_count, hash);
hash = header.PrevBlock;
}
for (int i = list.Count - 1; i >= 0; i--)
{
header_chain.Add(list[i].Hash, list[i], list[i].PrevBlock);
}
}
this.current_header_hash = header_index[header_index.Count - 1];
}
else
{
WriteBatch batch = new WriteBatch();
ReadOptions options = new ReadOptions {
FillCache = false
};
using (Iterator it = db.NewIterator(options))
{
for (it.SeekToFirst(); it.Valid(); it.Next())
{
batch.Delete(it.Key());
}
}
db.Write(WriteOptions.Default, batch);
Persist(GenesisBlock);
db.Put(WriteOptions.Default, SliceBuilder.Begin(DataEntryPrefix.CFG_Version), Assembly.GetExecutingAssembly().GetName().Version.ToString());
}
thread_persistence = new Thread(PersistBlocks);
thread_persistence.Name = "LevelDBBlockchain.PersistBlocks";
thread_persistence.Start();
AppDomain.CurrentDomain.ProcessExit += CurrentDomain_ProcessExit;
}
public virtual void Add(Slot slot)
{
_slots = ((TreeIntObject)Tree.Add(_slots, new TreeIntObject(slot.Address(), slot)
));
}
public Tree GetOperator(StreamReader stream, int?limitOperation = null)
{
var result = new Tree();
var symbol = stream.Read();
var buffer = new StringBuilder(20);
var limit = limitOperation;
var skipSymbol = new int[] { '\r', '\n', '\t', ' ' };
var stopSymbol = new int[] { '\r', '\n', '\t', ' ', '(' };
while (symbol >= 0 && symbol != '}')
{
if (buffer.Length == 0 && skipSymbol.Contains(symbol))
{
symbol = stream.Read();
continue;
}
if (buffer.Length != 0 && symbol == ';')
{
buffer.Clear();
symbol = stream.Read();
continue;
}
var curOperation = _operators.FirstOrDefault(it =>
it.Tag.Equals(((char)symbol).ToString(), StringComparison.CurrentCultureIgnoreCase));
if (curOperation != null)
{
var tree = curOperation.Process(buffer.ToString(), stream);
result.Add(tree);
buffer.Clear();
if (limit.HasValue)
{
if (limit == 1)
{
return(result);
}
limit = limit - 1;
}
}
else
{
buffer.Append((char)symbol);
var next = stream.Peek();
if (!stopSymbol.Contains(next))
{
symbol = stream.Read();
continue;
}
var bufferTag = buffer.ToString().Trim();
curOperation = _operators.FirstOrDefault(it =>
it.Tag.Equals(bufferTag, StringComparison.CurrentCultureIgnoreCase));
if (curOperation != null)
{
var tree = curOperation.Process(buffer.ToString(), stream);
result.Add(tree);
buffer.Clear();
if (limit.HasValue)
{
if (limit == 1)
{
return(result);
}
limit = limit - 1;
}
}
}
symbol = stream.Read();
}
return(result);
}
public VM()
{
Add = new DelegateCommand(() =>
{
Node <int> sni = Tree.Find(AddValue);
if (sni == null)
{
Tree.Add(AddValue);
UpdateItems();
RaisePropertyChanged("Items");
}
else
{
string title = "Information";
string message = AddValue + " already exists in tree";
MessageBox.Show(message, title);
}
});
Delete = new DelegateCommand(() =>
{
Node <int> sni = Tree.Find(DeleteValue);
if (sni != null)
{
Tree.Remove(DeleteValue);
UpdateItems();
RaisePropertyChanged("Items");
}
});
Find = new DelegateCommand(() =>
{
Node <int> sni = Tree.Find(FindValue);
string title = "Information";
string message = null;
if (sni != null)
{
message = "Color of " + FindValue + " is " + sni.Color.ToString();
}
else
{
message = FindValue + " not exists in tree";
}
MessageBox.Show(message, title);
});
Min = new DelegateCommand(() =>
{
int min = int.MaxValue;
Node <int> sni = Tree.Root;
while (sni != null)
{
min = sni.Data;
sni = (Node <int>)sni.Left;
}
string message = "Min value in tree is " + min;
string title = "Information";
MessageBox.Show(message, title);
});
Max = new DelegateCommand(() =>
{
int max = int.MinValue;
Node <int> sni = Tree.Root;
while (sni != null)
{
max = sni.Data;
sni = (Node <int>)sni.Right;
}
string message = "Max value in tree is " + max;
string title = "Information";
MessageBox.Show(message, title);
});
FindNext = new DelegateCommand(() =>
{
Node <int> sni = Tree.Find(FindNextValue);
string message = null;
string title = "Information";
if (sni != null)
{
Node <int> next = (Node <int>)Tools.NextItem(sni);
if (next != null && next.Data != 0 && next.Color != Color.Header)
{
message = "Next after " + FindNextValue + " - " + next.Data + ", color - " + next.Color;
}
else
{
message = "Nothing after " + FindNextValue;
}
}
else
{
message = FindNextValue + " not exist in tree";
}
MessageBox.Show(message, title);
});
FindPrev = new DelegateCommand(() =>
{
Node <int> sni = Tree.Find(FindPrevValue);
string message = null;
string title = "Information";
if (sni != null)
{
Node <int> prev = (Node <int>)Tools.PreviousItem(sni);
if (prev != null && prev.Data != 0 && prev.Color != Color.Header)
{
message = "Prev before " + FindPrevValue + " - " + prev.Data + ", color - " + prev.Color;
}
else
{
message = "Nothing prev " + FindPrevValue;
}
}
else
{
message = FindPrevValue + " not exist in tree";
}
MessageBox.Show(message, title);
});
Tree = new RedBlackTree <int>();
List <int> list = new List <int>();
Random rnd = new Random();
for (int i = 0; i < 1; i++)
{
int a = rnd.Next(1, 100);
if (!list.Contains(a))
{
list.Add(a);
Tree.Add(a);
}
}
UpdateItems();
}
public void Add(TKey key, IEnumerable <TKey> sections, TValue value)
{
Tree.Add(key, sections, value);
}
public static void Test()
{
var pool = new BufferPool();
var tree = new Tree(pool, 128);
const int leafCountAlongXAxis = 11;
const int leafCountAlongYAxis = 13;
const int leafCountAlongZAxis = 15;
var leafCount = leafCountAlongXAxis * leafCountAlongYAxis * leafCountAlongZAxis;
pool.Take <BoundingBox>(leafCount, out var leafBounds);
const float boundsSpan = 2;
const float spanRange = 2;
const float boundsSpacing = 3;
var random = new Random(5);
for (int i = 0; i < leafCountAlongXAxis; ++i)
{
for (int j = 0; j < leafCountAlongYAxis; ++j)
{
for (int k = 0; k < leafCountAlongZAxis; ++k)
{
var index = leafCountAlongXAxis * leafCountAlongYAxis * k + leafCountAlongXAxis * j + i;
leafBounds[index].Min = new Vector3(i, j, k) * boundsSpacing;
leafBounds[index].Max = leafBounds[index].Min + new Vector3(boundsSpan) +
spanRange * new Vector3((float)random.NextDouble(), (float)random.NextDouble(), (float)random.NextDouble());
}
}
}
var prebuiltCount = Math.Max(leafCount / 2, 1);
tree.SweepBuild(pool, leafBounds.Slice(0, prebuiltCount));
tree.Validate();
for (int i = prebuiltCount; i < leafCount; ++i)
{
tree.Add(ref leafBounds[i], pool);
}
tree.Validate();
pool.Take <int>(leafCount, out var handleToLeafIndex);
pool.Take <int>(leafCount, out var leafIndexToHandle);
for (int i = 0; i < leafCount; ++i)
{
handleToLeafIndex[i] = i;
leafIndexToHandle[i] = i;
}
const int iterations = 100000;
const int maximumChangesPerIteration = 20;
var threadDispatcher = new SimpleThreadDispatcher(Environment.ProcessorCount);
var refineContext = new Tree.RefitAndRefineMultithreadedContext();
var selfTestContext = new Tree.MultithreadedSelfTest <OverlapHandler>(pool);
var overlapHandlers = new OverlapHandler[threadDispatcher.ThreadCount];
Action <int> pairTestAction = selfTestContext.PairTest;
QuickList <int, Buffer <int> > .Create(pool.SpecializeFor <int>(), leafCount, out var removedLeafHandles);
for (int i = 0; i < iterations; ++i)
{
var changeCount = random.Next(maximumChangesPerIteration);
for (int j = 0; j <= changeCount; ++j)
{
var addedFraction = tree.LeafCount / (float)leafCount;
if (random.NextDouble() < addedFraction)
{
//Remove a leaf.
var leafIndexToRemove = random.Next(tree.LeafCount);
var handleToRemove = leafIndexToHandle[leafIndexToRemove];
var movedLeafIndex = tree.RemoveAt(leafIndexToRemove);
if (movedLeafIndex >= 0)
{
var movedHandle = leafIndexToHandle[movedLeafIndex];
handleToLeafIndex[movedHandle] = leafIndexToRemove;
leafIndexToHandle[leafIndexToRemove] = movedHandle;
leafIndexToHandle[movedLeafIndex] = -1;
}
else
{
//The removed leaf was the last one. This leaf index is no longer associated with any existing leaf.
leafIndexToHandle[leafIndexToRemove] = -1;
}
handleToLeafIndex[handleToRemove] = -1;
removedLeafHandles.AddUnsafely(handleToRemove);
tree.Validate();
}
else
{
//Add a leaf.
var indexInRemovedList = random.Next(removedLeafHandles.Count);
var handleToAdd = removedLeafHandles[indexInRemovedList];
removedLeafHandles.FastRemoveAt(indexInRemovedList);
var leafIndex = tree.Add(ref leafBounds[handleToAdd], pool);
leafIndexToHandle[leafIndex] = handleToAdd;
handleToLeafIndex[handleToAdd] = leafIndex;
tree.Validate();
}
}
tree.Refit();
tree.Validate();
tree.RefitAndRefine(pool, i);
tree.Validate();
var handler = new OverlapHandler();
tree.GetSelfOverlaps(ref handler);
tree.Validate();
refineContext.RefitAndRefine(ref tree, pool, threadDispatcher, i);
tree.Validate();
for (int k = 0; k < threadDispatcher.ThreadCount; ++k)
{
overlapHandlers[k] = new OverlapHandler();
}
selfTestContext.PrepareJobs(ref tree, overlapHandlers, threadDispatcher.ThreadCount);
threadDispatcher.DispatchWorkers(pairTestAction);
selfTestContext.CompleteSelfTest();
tree.Validate();
if (i % 50 == 0)
{
Console.WriteLine($"Cost: {tree.MeasureCostMetric()}");
Console.WriteLine($"Cache Quality: {tree.MeasureCacheQuality()}");
Console.WriteLine($"Overlap Count: {handler.OverlapCount}");
}
}
threadDispatcher.Dispose();
pool.Clear();
}
public void Add(KeyValuePair <TKey, IDictionaryTreeNode <TKey, TValue> > item)
{
Tree.Add(item);
}
public void Add(TKey key, TValue value)
{
Tree.Add(key, value);
}
public virtual void EvictedFromCache(BTreeNode node)
{
_evictedFromCache = ((TreeIntObject)Tree.Add(_evictedFromCache, new TreeIntObject
(node.GetID(), node)));
}
internal virtual void AddNode(BTreeNode node)
{
_nodes = (TreeIntObject)((TreeIntObject)Tree.Add(_nodes, new TreeIntObject(node.GetID
(), node)));
AddToProcessing(node);
}
public static Db4objects.Db4o.Internal.TreeInt Add(Db4objects.Db4o.Internal.TreeInt
tree, int value)
{
return((Db4objects.Db4o.Internal.TreeInt)((Db4objects.Db4o.Internal.TreeInt)Tree.
Add(tree, new Db4objects.Db4o.Internal.TreeInt(value))));
}
private void TreeViewLoaded()
{
tracer.GetImport().Log(TraceLevel.Verbose, "TreeView loading started");
Tree.Add(assemblyMetadataView);
tracer.GetImport().Log(TraceLevel.Verbose, "TreeView loading finished");
}
public void NullKeyUnderThrows()
{
var tree = new Tree<bool>();
tree.Add(@"C:\A", true);
tree.Under(null);
}
static void Main()
{
Node <int> root = new Node <int>(5);
Tree <int> tree = new Tree <int>(root);
tree.Add(new Node <int>(7));
tree.Add(new Node <int>(1));
tree.Add(new Node <int>(2));
tree.Add(new Node <int>(9));
tree.Add(new Node <int>(4));
tree.Add(new Node <int>(8));
tree.Add(new Node <int>(0));
tree.Add(new Node <int>(11));
tree.Add(new Node <int>(-3));
tree.Add(new Node <int>(-6));
tree.Add(new Node <int>(-5));
tree.Add(new Node <int>(-8));
tree.Add(new Node <int>(5));
tree.Add(new Node <int>(12));
tree.Print();
var allPaths = tree.FindAllPaths();
int sumToLook = 41;
Console.WriteLine("++++++++++++++++++++++++++++");
Console.WriteLine("Paths with sum " + sumToLook);
var allPathsWithSum = tree.FindAllPathsWithSum(sumToLook);
foreach (var path in allPathsWithSum)
{
foreach (var item in path)
{
Console.Write(item.Value + " ");
}
Console.WriteLine();
}
}
internal virtual void AddClassStats(ClassUsageStats classStats
)
{
_classUsageStats = ((TreeStringObject)Tree.Add(_classUsageStats, new TreeStringObject
(classStats.ClassName(), classStats)));
}
public void Visit(int i)
{
treeInts.value = ((TreeInt)Tree.Add(((TreeInt)treeInts.value), new TreeInt(i)));
}
static void ProcessFile(string fileName, Tree <string, string> root)
{
string baseName = Path.GetFileNameWithoutExtension(fileName);
string className = GetKey(baseName);
if (className == null)
{
return;
}
Console.WriteLine($"{Environment.NewLine}Processing file '{className}'...{Environment.NewLine}");
if (!root.TryGetValue(className, out Tree <string, string> node))
{
node = new Tree <string, string>(className, root.Comparer);
root.Add(node);
}
StreamReader reader = null;
CsvReader csvReader = null;
try
{
reader = new StreamReader(fileName ?? throw new ArgumentNullException(nameof(fileName)), Encoding.UTF8);
csvReader = new CsvReader(reader, CultureInfo.InvariantCulture);
while (csvReader.Read())
{
string entry = csvReader.GetField(0);
string fullKey = GetKey(entry);
if (fullKey == null)
{
continue;
}
string value = csvReader.GetField(1).ToNullIfEmpty() ?? $"{baseName}/{entry}";
if (!fullKey.Contains('.'))
{
if (!node.TryGetValue(fullKey, out Tree <string, string> item))
{
item = new Tree <string, string>(fullKey, node.Comparer)
{
Value = value
};
node.Add(item);
}
}
else
{
string[] keys = fullKey.Split(StringSplitOptions.RemoveEmptyEntries, '.');
Tree <string, string> current = node;
for (int i = 0; i < keys.Length; i++)
{
string key = keys[i];
if (!current.TryGetValue(key, out Tree <string, string> item))
{
item = new Tree <string, string>(key, current.Comparer);
current.Add(item);
}
if (i == keys.Length - 1)
{
item.Value = value;
}
current = item;
}
}
Console.WriteLine($"{entry} => {fullKey} = '{value}'");
}
}
finally
{
ObjectHelper.Dispose(ref csvReader);
ObjectHelper.Dispose(ref reader);
}
}
public static Db4objects.Db4o.Internal.TreeIntObject Add(Db4objects.Db4o.Internal.TreeIntObject
tree, int key, object value)
{
return((Db4objects.Db4o.Internal.TreeIntObject)Tree.Add(tree, new Db4objects.Db4o.Internal.TreeIntObject
(key, value)));
}
public void Add(TreeInt node)
{
tree = (TreeInt)((TreeInt)Tree.Add(tree, node));
}
public virtual void AddId(int id)
{
_ids = (TreeInt)Tree.Add(_ids, new TreeInt(id));
}
protected override void MapNonClassIDs(int origID, int mappedID)
{
_tree = Tree.Add(_tree, new TreeIntObject(origID, mappedID));
}
static void Main()
{
Node <int> root = new Node <int>(5);
Tree <int> tree = new Tree <int>(root);
tree.Add(new Node <int>(7));
tree.Add(new Node <int>(1));
tree.Add(new Node <int>(2));
tree.Add(new Node <int>(9));
tree.Add(new Node <int>(4));
tree.Add(new Node <int>(8));
tree.Add(new Node <int>(0));
tree.Add(new Node <int>(11));
tree.Add(new Node <int>(-3));
tree.Add(new Node <int>(-6));
tree.Add(new Node <int>(-5));
tree.Add(new Node <int>(-8));
tree.Add(new Node <int>(5));
tree.Add(new Node <int>(12));
tree.Print();
tree.FindLongestPath();
//var allPaths = tree.FindAllPaths();
//Console.WriteLine(allPaths.Count);
//foreach (var path in allPaths)
//{
// foreach (var item in path)
// {
// Console.Write(item.Value + " ");
// }
// Console.WriteLine();
//}
}
static void Main()
{
Node <int> root = new Node <int>(5);
Tree <int> tree = new Tree <int>(root);
tree.Add(new Node <int>(7));
tree.Add(new Node <int>(1));
tree.Add(new Node <int>(2));
tree.Add(new Node <int>(9));
tree.Add(new Node <int>(4));
tree.Add(new Node <int>(8));
tree.Add(new Node <int>(0));
tree.Add(new Node <int>(11));
tree.Add(new Node <int>(-3));
tree.Add(new Node <int>(-6));
tree.Add(new Node <int>(-5));
tree.Add(new Node <int>(-8));
tree.Add(new Node <int>(5));
tree.Add(new Node <int>(12));
tree.Print();
tree.FindLongestPath();
Console.WriteLine("++++++++++++++++++++++++++++");
var allSubTreessWithSum = tree.FindSubtreesWithSum(-10);
foreach (var subTree in allSubTreessWithSum)
{
subTree.Print();
}
}
public void PopulateTables()
{
var tablesNode = new TreeViewItem {
Header = "Tables"
};
tablesNode.Selected += OnTreeViewItemSelected;
tablesNode.ExpandSubtree();
foreach (var item in database.Tables)
{
var table = new TreeViewItem {
Header = item.DisplayName, Tag = item /*, FontWeight = FontWeights.Bold*/
};
table.Selected += OnTreeViewItemSelected;
//table.ExpandSubtree();
tablesNode.Items.Add(table);
var columns = new TreeViewItem {
Header = "Columns", FontWeight = FontWeights.Normal
};
//columns.ExpandSubtree();
table.Items.Add(columns);
foreach (var column in item.Columns)
{
var columnNode = new TreeViewItem();
columnNode.Selected += OnTreeViewItemSelected;
columnNode.Header = column.Value.DisplayName;
//columnNode.Tag = new KeyValuePair<string, string>(item.Name, column.Value.Name);
if (column.Value.IsPrimaryKey)
{
columnNode.Items.Add("Primary Key");
}
if (column.Value.IdentitySeed.HasValue)
{
columnNode.Items.Add("Identity Seed: " + column.Value.IdentitySeed.GetValueOrDefault(1));
}
if (column.Value.IdentityIncrement.HasValue)
{
columnNode.Items.Add("Identity Increment: " + column.Value.IdentityIncrement.GetValueOrDefault(1));
}
if (column.Value.IsForeignKey)
{
columnNode.Items.Add("Foreign Key");
}
columnNode.Items.Add("Ordinal Position: " + column.Value.Ordinal);
columnNode.Items.Add(new TreeViewItem {
Header = "Database Type: " + column.Value.DatabaseType
});
columnNode.Items.Add(new TreeViewItem {
Header = ".NET CLR Type: " + column.Value.ManagedType
});
columnNode.Items.Add(new TreeViewItem {
Header = "Allows Null: " + column.Value.AllowsNull
});
if (column.Value.ManagedType == typeof(string))
{
columnNode.Items.Add("Max Length: " + column.Value.MaxLength);
}
columns.Items.Add(columnNode);
}
var indexes = new TreeViewItem {
Header = "Indexes", FontWeight = FontWeights.Normal
};
table.Items.Add(indexes);
if (item.Indexes != null)
{
foreach (var index in item.Indexes)
{
var indexNode = new TreeViewItem {
Header = index.Name
};
indexNode.Items.Add(new TreeViewItem {
Header = "Column: " + index.Column.DisplayName
});
indexNode.Items.Add(new TreeViewItem {
Header = "Unique: " + index.Unique
});
indexNode.Items.Add(new TreeViewItem {
Header = "Clustered: " + index.Clustered
});
indexes.Items.Add(indexNode);
}
}
}
if (Tree == null)
{
Tree = new ObservableCollection <TreeViewItem>();
}
Tree.Clear();
Tree.Add(GetDatabaseInformationTree());
Tree.Add(tablesNode);
RaisePropertyChanged("Tree");
}
void AddCell(Tree<Cell> row, object theNewValue)
{
row.Add(Processor.Compose(theNewValue));
}
public void OrderPropertyValidation()
{
var subtree = new Tree<int>(5, EnumeratorOrder.DepthFirstSearch) { 1, 2 };
var tree = new Tree<int>(7, EnumeratorOrder.BreadthFirstSearch);
tree.Add(subtree);
Assert.AreEqual(EnumeratorOrder.BreadthFirstSearch, subtree.Order);
foreach (Tree<int> child in subtree.Children)
{
Assert.AreEqual(EnumeratorOrder.BreadthFirstSearch, child.Order);
}
subtree.Add(3);
Assert.AreEqual(EnumeratorOrder.BreadthFirstSearch, subtree.Children.First(c => c.Value == 3).Order);
tree.Order = EnumeratorOrder.DepthFirstSearch;
subtree.Add(4);
Assert.AreEqual(EnumeratorOrder.DepthFirstSearch, subtree.Children.First(c => c.Value == 4).Order);
try
{
tree.Order = (EnumeratorOrder)123;
Assert.Fail("Unknown order type defined.");
}
catch (ArgumentOutOfRangeException)
{
}
catch (Exception)
{
Assert.Fail("Invalid exception type.");
}
}
static void Main()
{
//Console.WriteLine("Enter number of nodes: ");
//var numberOfNodes = int.Parse(Console.ReadLine());
//for (int i = 0, len = numberOfNodes; i < len; i++)
//{
// Console.WriteLine("Parent: ");
// var key = int.Parse(Console.ReadLine());
// Console.WriteLine("Child: ");
// var value = int.Parse(Console.ReadLine());
// nodes.Add(key, value);
//}
var parents = new List<int>();
var children = new List<int>();
parents.Add(2);
children.Add(4);
parents.Add(3);
children.Add(2);
parents.Add(5);
children.Add(0);
parents.Add(3);
children.Add(5);
parents.Add(5);
children.Add(6);
parents.Add(5);
children.Add(1);
parents.Add(4);
children.Add(7);
var tree = new Tree<int>();
while (parents.Count > 0)
{
var rootElements = GetTopParentNodes(parents, children);
foreach (var root in rootElements)
{
Console.WriteLine(root);
var rootChildren = GetChildrenOf(root, parents, children);
foreach (var child in rootChildren)
{
tree.Add(root, child);
}
var index = 0;
while (parents.Contains(root))
{
parents.Remove(root);
children.Remove(rootChildren[index]);
index++;
}
}
}
// TO DO:
// get the root - add HasPerant prop
// each element
// middle nodes = as of row? - add counter, when end is reached traverse till end/2 - cycle
// traverse through tree with counter depth, save it, and if any deeper branch is found, replace the saved one
Console.WriteLine();
}
public override void MapId(int id, Slot slot)
{
var idSlotMapping = new IdSlotTree(id, slot);
_idsToSlots = ((IdSlotTree)Tree.Add(_idsToSlots, idSlotMapping));
}
static void Main()
{
Node<int> root = new Node<int>(5);
Tree<int> tree = new Tree<int>(root);
tree.Add(new Node<int>(7));
tree.Add(new Node<int>(1));
tree.Add(new Node<int>(2));
tree.Add(new Node<int>(9));
tree.Add(new Node<int>(4));
tree.Add(new Node<int>(8));
tree.Add(new Node<int>(0));
tree.Add(new Node<int>(11));
tree.Add(new Node<int>(-3));
tree.Add(new Node<int>(-6));
tree.Add(new Node<int>(-5));
tree.Add(new Node<int>(-8));
tree.Add(new Node<int>(5));
tree.Add(new Node<int>(12));
tree.Print();
var allPaths = tree.FindAllPaths();
int sumToLook = 41;
Console.WriteLine("++++++++++++++++++++++++++++");
Console.WriteLine("Paths with sum "+sumToLook);
var allPathsWithSum = tree.FindAllPathsWithSum(sumToLook);
foreach (var path in allPathsWithSum)
{
foreach (var item in path)
{
Console.Write(item.Value + " ");
}
Console.WriteLine();
}
}
static void Main()
{
Node<int> root = new Node<int>(5);
Tree<int> tree = new Tree<int>(root);
tree.Add(new Node<int>(7));
tree.Add(new Node<int>(1));
tree.Add(new Node<int>(2));
tree.Add(new Node<int>(9));
tree.Add(new Node<int>(4));
tree.Add(new Node<int>(8));
tree.Add(new Node<int>(0));
tree.Add(new Node<int>(11));
tree.Add(new Node<int>(-3));
tree.Add(new Node<int>(-6));
tree.Add(new Node<int>(-5));
tree.Add(new Node<int>(-8));
tree.Add(new Node<int>(5));
tree.Add(new Node<int>(12));
tree.Print();
tree.FindLongestPath();
Console.WriteLine("++++++++++++++++++++++++++++");
var allSubTreessWithSum = tree.FindSubtreesWithSum(-10);
foreach (var subTree in allSubTreessWithSum)
{
subTree.Print();
}
}
private void AddFilterToTree(Filter<IMaxNode> filter, Tree.TreeNodeCollection parentCollection)
{
filter.FilterChanged += filterChanged;
Tree.TreeNode tn = new Tree.TreeNode();
tn.Text = GetTreeNodeText(filter, tn);
tn.Tag = filter;
this.treeNodes.Add(filter, tn);
FilterCombinator<IMaxNode> combinator = filter as FilterCombinator<IMaxNode>;
if (combinator != null)
{
foreach (Filter<IMaxNode> child in combinator.Filters)
{
this.AddFilterToTree(child, tn.Nodes);
}
combinator.Filters.FilterAdded += this.filterAdded;
combinator.Filters.FilterRemoved += this.filterRemoved;
tn.DragDropHandler = new FilterCombinatorDragDropHandler(combinator);
}
else
tn.DragDropHandler = new FilterDragDropHandler(filter);
parentCollection.Add(tn);
}
public virtual void Add(Tree tree)
{
Changed();
_tree = _tree == null ? tree : _tree.Add(tree);
}
//this code is built on top of this solution: https://leetcode.com/discuss/interview-question/347457/Amazon-or-OA-2019-or-Treasure-Island/317634
internal static LinkedList <Point> FindShortestDistance(char[][] matrix)
{
if (matrix == null || matrix.Length == 0)
{
return(null);
}
int steps = 0;
//in BFS nodes are queued, unlike the DFS algorithm which uses stack
Queue <Point> queue = new Queue <Point>();
//we need to mark every visited nodes, so we don't scan it again
bool[,] visited = new bool[matrix.Length, matrix[0].Length];
//this tree is to represent the solution in a parent-child relationship to be able to get the route
//BFS doesn't know which nodes led to the target one, it only can help count levels until the goal is reached
Tree <Point> tree = new Tree <Point>();
LinkedList <Point> route = new LinkedList <Point>();
TreeNode <Point> goal = null;
var head = new Point(0, 0);
queue.Enqueue(head);
visited[0, 0] = true;
//down,up,right,left ({row, column})
int[][] dirs = new int[][] { new[] { 1, 0 }, new[] { -1, 0 }, new[] { 0, 1 }, new[] { 0, -1 } };
//on every node visited, we save it in this HashSet, every node becomes a potential parent for the next iteration's nodes, so we need to register these relations
HashSet <TreeNode <Point> > parentsCache = new HashSet <TreeNode <Point> >();
//BFS
while (queue.Count != 0)
{
int size = queue.Count;
for (int i = 0; i < size; i++)
{
Point point = queue.Dequeue();
TreeNode <Point> parent;
if (tree.Root == null)
{
parent = tree.Add(point);
}
else
{
parent = tree.Last;
}
int x = point.R;
int y = point.C;
if (matrix[x][y] == 'X')
{
var curr = goal;
while (curr != null)
{
route.AddFirst(curr.Value);
curr = curr.Parents.First();
}
return(route);
}
foreach (int[] dir in dirs)
{
int newX = x + dir[0];
int newY = y + dir[1];
//findng the available unvisited direction
if (newX >= 0 && newX < matrix.Length && newY >= 0 && newY < matrix[0].Length &&
matrix[newX][newY] != 'D' && !visited[newX, newY])
{
var child = new Point(newX, newY);
queue.Enqueue(child);
var parents = parentsCache.Where(p => p.Value.IsParentTo(child));
TreeNode <Point> node;
if (parents != null && parents.Count() > 0)
{
node = tree.AddMultiParent(child, parents.ToList());
}
else
{
node = tree.Add(child, parent);
}
if (matrix[newX][newY] == 'X')
{
goal = node;
}
parentsCache.Add(node);
visited[newX, newY] = true;
}
}
}
steps++;
}
return(null);
}
public void Add(TKey key, TValue value, params TKey[] sections)
{
Tree.Add(key, value, sections);
}
public void AddNullKeyThrows()
{
var tree = new Tree<bool>();
tree.Add(null, true);
}
