static void Main(string[] args)
{
TwoDPointWithHash newPoint1 = new TwoDPointWithHash(1, 1);
TwoDPointWithHash newPoint2 = new TwoDPointWithHash(10, 10);
Console.WriteLine($"Hash for point1: {newPoint1.GetHashCode()}\tHash for point2: {newPoint2.GetHashCode()}");
// проверка совпадений хэш кодов
int countHashRe = 0;
Dictionary <int, Tuple <int, int> > dict = new Dictionary <int, Tuple <int, int> >();
for (int i = 0; i < 1000; i++)
{
for (int j = 0; j < 1000; j++)
{
TwoDPointWithHash point = new TwoDPointWithHash(i, j);
int hash = point.GetHashCode();
if (dict.ContainsKey(hash))
{
//Console.WriteLine($"Hash exists by {dict[hash].Item1}:{dict[hash].Item2}, current point {i}:{j}");
countHashRe++;
}
else
{
dict.Add(hash, new Tuple <int, int>(i, j));
}
}
}
Console.WriteLine($"Совпадений: {countHashRe}");
Console.WriteLine("Нажмите любую клавишу для выхода");
Console.ReadKey();
}
static void Main(string[] args)
{
var hashs = new List <int>();
for (var i = 0; i < 1000; i++)
{
for (var j = 0; j < 1000; j++)
{
var point = new TwoDPointWithHash(i, j);
hashs.Add(point.GetHashCode());
}
}
var uniqueValues = hashs.Distinct().ToList();
double errors = hashs.Count - uniqueValues.Count;
double proc = errors / hashs.Count * 100;
Console.WriteLine(uniqueValues.Count);
Console.WriteLine(errors);
Console.WriteLine(proc);
//12 task FileSystemWatcher
}
public static void Main(string[] args)
{
TwoDPoint point1 = new TwoDPoint(1, 1);
TwoDPoint point2 = new TwoDPoint(10, 10);
Console.WriteLine("Hash for point1: {0}\tHash for point2: {1}", point1.GetHashCode(), point2.GetHashCode());
TwoDPointWithHash newPoint1 = new TwoDPointWithHash(1, 1);
TwoDPointWithHash newPoint2 = new TwoDPointWithHash(10, 10);
Console.WriteLine("Hash for point1: {0}\tHash for point2: {1}", newPoint1.GetHashCode(), newPoint2.GetHashCode());
Console.ReadKey();
}
static void Main(string[] args)
{
List <int> hashCodes = new List <int>();
List <int> Xs = new List <int>();
List <int> Ys = new List <int>();
int range = 1000;
for (int i = 0; i < range; i++)
{
for (int j = 0; j < range; j++)
{
TwoDPointWithHash point = new TwoDPointWithHash(i, j);
hashCodes.Add(point.GetHashCode());
}
}
for (int i = -1; i > -range; i--)
{
for (int j = 0; j > -range; j--)
{
TwoDPointWithHash point = new TwoDPointWithHash(i, j);
hashCodes.Add(point.GetHashCode());
}
}
List <int> unique = hashCodes.Distinct().ToList();
List <int> sam1 = new List <int>();
HashSet <int> hash = new HashSet <int>();
foreach (int number in hashCodes)
{
if (!hash.Add(number))
{
sam1.Add(number);
}
}
Console.WriteLine($"All count = {hashCodes.Count}");
Console.WriteLine($"Unique count = {unique.Count}");
Console.WriteLine($"The same count = {hashCodes.Count - unique.Count}");
double countOfSame = (double)(hashCodes.Count - unique.Count) * 100 / hashCodes.Count;
Console.WriteLine($"Percent = {countOfSame}");
Console.ReadKey();
}
static void Main(string[] args)
{
TwoDPoint point1 = new TwoDPoint(1, 10);
TwoDPoint point2 = new TwoDPoint(1, 10);
Console.WriteLine("Hash for point1: {0}\tHash for point2: {1}", point1.GetHashCode(), point2.GetHashCode());
TwoDPointWithHash newPoint1 = new TwoDPointWithHash(10, 10);
TwoDPointWithHash newPoint2 = new TwoDPointWithHash(1, 1);
Console.WriteLine("Hash for point1: {0}\tHash for point2: {1}", newPoint1.GetHashCode(), newPoint2.GetHashCode());
// уникальных точек будет 2, хотя координаты их одинаковы
Console.WriteLine("TwoDPoint:");
var twoDPointList = new List <TwoDPoint> {
point1, point2
};
var distinctTwoDPointList = twoDPointList.Distinct();
foreach (var point in distinctTwoDPointList)
{
Console.WriteLine("Distinct point: {0}", point);
}
// одна уникальная точка
Console.WriteLine("TwoDPointWithHash:");
var twoDPointWithHashList = new List <TwoDPointWithHash> {
newPoint1, newPoint2
};
var distinctTwoDPointWithHashList = twoDPointWithHashList.Distinct();
foreach (var point in distinctTwoDPointWithHashList)
{
Console.WriteLine("Distinct point: {0}", point);
}
Console.ReadKey();
}
public static void Demo(/*string[] args*/)
{
TwoDPoint point1 = new TwoDPoint(1, 10);
TwoDPoint point2 = new TwoDPoint(1, 10);
Console.WriteLine("Hash for point1: {0}\tHash for point2: {1}", point1.GetHashCode(), point2.GetHashCode());
TwoDPointWithHash newPoint1 = new TwoDPointWithHash(1, 1);
TwoDPointWithHash newPoint2 = new TwoDPointWithHash(10, 10);
Console.WriteLine("Hash for point1: {0}\tHash for point2: {1}", newPoint1.GetHashCode(), newPoint2.GetHashCode());
// уникальных точек будет 2, хотя координаты их одинаковы
//Console.WriteLine("TwoDPointWithHash:"); // Здесь надо изменить заголовок для точек типа TwoDPoint
Console.WriteLine("TwoDPoint:");
var twoDPointList = new List <TwoDPoint> {
point1, point2
};
var distinctTwoDPointList = twoDPointList.Distinct();
foreach (var point in distinctTwoDPointList)
{
Console.WriteLine("Distinct point: {0}", point);
}
// одна уникальная точка
Console.WriteLine("TwoDPointWithHash:");
var twoDPointWithHashList = new List <TwoDPointWithHash> {
newPoint1, newPoint2
};
var distinctTwoDPointWithHashList = twoDPointWithHashList.Distinct();
foreach (var point in distinctTwoDPointWithHashList)
{
Console.WriteLine("Distinct point: {0}", point);
}
}
static void Main(string[] args)
{
int n = 1000000;
Dictionary <TwoDPointWithHash, int> dict = new Dictionary <TwoDPointWithHash, int>();
for (int i = 0; i < n; i++)
{
TwoDPointWithHash point = new TwoDPointWithHash(rand.Next(-1000000, 1000000), rand.Next(-1000000, 1000000));
if (!dict.ContainsKey(point))
{
dict.Add(point, point.GetHashCode());
}
}
var distinct = dict.Values.Distinct();
Console.WriteLine($"The same: {dict.Count - distinct.Count()}, hashes all: {dict.Count}, percent: {(double)(dict.Count - distinct.Count()) * 100.0 /(double)dict.Count}");
Console.ReadLine();
}
static void Main(string[] args)
{
var hash = new List <int>();
for (var i = 0; i < 1000; i++)
{
for (var j = 0; j < 1000; j++)
{
var point = new TwoDPointWithHash(i, j);
hash.Add(point.GetHashCode());
}
}
Console.WriteLine($"All count {hash.Count}");
var unique = hash.Distinct().ToList();
Console.WriteLine($"Unique count {unique.Count}");
var theSameCount = hash.Count - unique.Count;
Console.WriteLine($"The same count {theSameCount}");
Console.WriteLine($"percent {(double)((double)theSameCount * 100 / (double)hash.Count)}");
Console.ReadKey();
}
static void Main(string[] args)
{
TwoDPointWithHash twoDPointWithHash = new TwoDPointWithHash(5, 5);
List <int> hashlist = new List <int>();
bool identity;
int hashcode;
int count = 0;
for (int i = -50; i < 50; i++)
{
for (int j = -50; j < 50; j++)
{
count++;
identity = true;
twoDPointWithHash = new TwoDPointWithHash(i, j);
hashcode = twoDPointWithHash.GetHashCode();
foreach (int k in hashlist)
{
if (k == hashcode)
{
identity = false;
}
}
if (identity)
{
hashlist.Add(hashcode);
}
}
}
double uniqueness = hashlist.Count * 100 / count;
Console.WriteLine($"Uniqueness is " + uniqueness + "%");
Console.ReadKey();
}
static void Main(string[] args)
{
TwoDPointWithHash td = new TwoDPointWithHash(10, 10);
td.GetHashCode();
}
