static void Main()
{
var r = new List <int>();
var h = Read();
var n = h[0];
var uf = new UFW(n);
for (int i = 0; i < h[1]; i++)
{
var q = Read();
if (q[0] == 0)
{
uf.Unite(q[1], q[2], q[3]);
}
else
{
r.Add(uf.Diff(q[1], q[2]));
}
}
Console.WriteLine(string.Join("\n", r.Select(d => d == int.MaxValue ? "?" : $"{d}")));
}
public void dddd()
{
var ufw = new ABMLib.DAL.LocalDB.UnitOfWork2(_Context, new DBContextHLog());
var H = UFW.Repository <HLog>();
var r = UFW.Repository <DBContext, QdtAction, QdtActionHLog>();
//var r2 = UFW.Repository<RepQdtAction , QdtAction, long>();
//var fff1 = r2.GetAll();
//r2.Add(new QdtAction());
r.Add(new QdtAction());
H.Add(new HLog("ثبت داده QdtAction"));
UFW.Save();
//var fff2 = r2.GetAll();
var it = r.GetEntityById(1);
it.Name = DateTime.Now.ToString("yyyy/MM/dd HH:mm:ss");
r.Add(it);
UFW.Save();
UFW.Dispose();
//UFW.dIRep["RepQdtAction"].
}
