Код: Выделить всё
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace HashConsole
{
public class Info
{
public string Login;
public string Password;
}
public class Hash_Element
{
public Info Element;
public bool used;
}
public class Hash_Table
{
public const int SizeTable = 100;
public int Size;
public Hash_Element[] H_Table;
public Hash_Table()
{
H_Table = new Hash_Element[SizeTable];
Size = 0;
for (int i = 0; i < H_Table.Length; i++)
{
H_Table[i] = new Hash_Element();
H_Table[i].Element = new Info();
H_Table[i].used = false;
}
}
public int HashKey(string login)
{
int Sum = 0;
int rez;
for (int i = 0; i < login.Length; i++)
{
byte kod = Encoding.GetEncoding(1251).GetBytes(new char[] { login[i] })[0];
Sum = Sum + kod;
}
rez = Sum % SizeTable;
return rez;
}
public bool HashSearch(string login, out Info element)
{
int i = HashKey(login);
while ((H_Table[i].used) && (H_Table[i].Element.Login != login))
{
i = (i+1) % SizeTable;
}
if (H_Table[i].used)
{
element = H_Table[i].Element;
return true;
}
else
{
element = null;
return false;
}
}
public void HashInsert(Info element)
{
int i;
Info info = new Info();
if (!((Size == SizeTable - 1) || (HashSearch(element.Login, out info))))
{
i = HashKey(element.Login);
while (H_Table[i].used)
{
i = (i+1) % SizeTable;
H_Table[i].used = true;
H_Table[i].Element = element;
Size++;
}
}
}
}
public class Program
{
static void Main()
{
Hash_Table H = new Hash_Table();
string log, pas;
log = "irina";
pas = "09051945";
Console.WriteLine("{0} {1}", log, pas);
Info el = new Info();
el.Login = log;
el.Password = pas;
H.HashInsert(el);
log = "olga";
pas = "08011989";
Console.WriteLine("{0} {1}", log, pas);
el.Login = log;
el.Password = pas;
H.HashInsert(el);
log = "murka";
pas = "123456";
Console.WriteLine("{0} {1}", log, pas);
el.Login = log;
el.Password = pas;
H.HashInsert(el);
Console.ReadLine();
Info info=new Info();
if (H.HashSearch("irina", out info))
{
Console.WriteLine("Yes");
}
else
{
Console.WriteLine("No");
}
Console.ReadLine();
}
}
}