public int DugumSayisi(IkiliAramaAgacDugumu dugum)
{
int count = 0;
if (dugum != null)
{
count = 1;
count += DugumSayisi(dugum.sol);
count += DugumSayisi(dugum.sag);
}
return(count);
}
private void DerinlikBulInt(IkiliAramaAgacDugumu dugum)
{
if (dugum == null)
{
return;
}
else
{
Yukseklik++;
DerinlikBulInt(dugum.sol); //Düğümün solu oldukça sola git
}
}
private void ZiyaretAdvanced(IkiliAramaAgacDugumu dugum)
{
if (dugum == null)
{
return;
}
if (dugum.veri.yabanciDil == "Advanced")
{
advancedTemp += "Adı-Soyad:" + dugum.veri.ad + Environment.NewLine;
}
ZiyaretAdvanced(dugum.sol);
ZiyaretAdvanced(dugum.sag);
}
private void btnKayitSil_Click(object sender, EventArgs e)
{
OgrenciBilgi o = new OgrenciBilgi();
o.ogrenciNo = Convert.ToInt32(txtSilinecekOgrenciNo.Text);
aramaDugum = aramaAgaci.OgrenciNumarasinaGoreAra(Convert.ToInt32(txtSilinecekOgrenciNo.Text));
aramaAgaci.Sil(o.ogrenciNo);
string anahtar = aramaDugum.veri.MezunBilgiListesi.BolumBul();
int x = hm.hashFonksiyonu(anahtar, 3);
hm.table[x].h.ElemanSil(aramaDugum.veri);
MessageBox.Show("Kayıt Başarılı Bir Şekilde Silindi");
txtSilinecekOgrenciNo.Text = "";
}
private void OgrenciAdinaGoreArama(IkiliAramaAgacDugumu dugum, string adi, string sifresi)
{
if (dugum == null)
{
return;
}
if (dugum.veri.ad == adi && dugum.veri.sifre == sifresi)
{
kilit = true;
}
else if (!kilit)
{
OgrenciAdinaGoreArama(dugum.sol, adi, sifresi);
OgrenciAdinaGoreArama(dugum.sag, adi, sifresi);
}
}
private void Ziyaret90(IkiliAramaAgacDugumu dugum)
{
if (dugum == null)
{
return;
}
double notOrtalamasi = dugum.veri.MezunBilgiListesi.OrtalamaBul();
if (notOrtalamasi != 0)
{
tempOrtalama += dugum.veri.ad + Environment.NewLine;
}
Ziyaret90(dugum.sol);
Ziyaret90(dugum.sag);
}
private IkiliAramaAgacDugumu OgrenciNoGuncelle(IkiliAramaAgacDugumu dugum,
OgrenciBilgi ogr)
{
if ((int)dugum.veri.ogrenciNo == ogr.ogrenciNo)
{
dugum.veri = ogr;
return(dugum);
}
else if ((int)dugum.veri.ogrenciNo > ogr.ogrenciNo)
{
return(OgrenciNoGuncelle(dugum.sol, ogr));
}
else
{
return(OgrenciNoGuncelle(dugum.sag, ogr));
}
}
private IkiliAramaAgacDugumu Successor(IkiliAramaAgacDugumu silDugum)
{
IkiliAramaAgacDugumu successorParent = silDugum;
IkiliAramaAgacDugumu successor = silDugum;
IkiliAramaAgacDugumu current = silDugum.sag;
while (current != null)
{
successorParent = successor;
successor = current;
current = current.sol;
}
if (successor != silDugum.sag)
{
successorParent.sol = successor.sag;
successor.sag = silDugum.sag;
}
return(successor);
}
private IkiliAramaAgacDugumu OgrenciNoAraInt(IkiliAramaAgacDugumu dugum,
int anahtar)
{
if (dugum == null)
{
return(null);
}
else if ((int)dugum.veri.ogrenciNo == anahtar)
{
return(dugum);
}
else if ((int)dugum.veri.ogrenciNo > anahtar)
{
return(OgrenciNoAraInt(dugum.sol, anahtar));
}
else
{
return(OgrenciNoAraInt(dugum.sag, anahtar));
}
}
public void Ekle(OgrenciBilgi deger)
{
IkiliAramaAgacDugumu tempParent = new IkiliAramaAgacDugumu();
IkiliAramaAgacDugumu tempSearch = kok;
while (tempSearch != null)
{
tempParent = tempSearch;
if (deger.ogrenciNo == tempSearch.veri.ogrenciNo)
{
return;
}
else if (deger.ogrenciNo < tempSearch.veri.ogrenciNo)
{
tempSearch = tempSearch.sol;
}
else
{
tempSearch = tempSearch.sag;
}
}
IkiliAramaAgacDugumu eklenecek = new IkiliAramaAgacDugumu(deger);
if (kok == null)
{
kok = eklenecek;
}
else if (deger.ogrenciNo < tempParent.veri.ogrenciNo)
{
tempParent.sol = eklenecek;
}
else
{
tempParent.sag = eklenecek;
}
}
public IkiliAramaAgacDugumu(OgrenciBilgi ogr)
{
this.veri = ogr;
sol = null;
sag = null;
}
public bool Sil(int deger)
{
IkiliAramaAgacDugumu current = kok;
IkiliAramaAgacDugumu parent = kok;
bool issol = true;
//DÜĞÜMÜ BUL
while ((int)current.veri.ogrenciNo != deger)
{
parent = current;
if (deger < (int)current.veri.ogrenciNo)
{
issol = true;
current = current.sol;
}
else
{
issol = false;
current = current.sag;
}
if (current == null)
{
return(false);
}
}
//DURUM 1: YAPRAK DÜĞÜM
if (current.sol == null && current.sag == null)
{
if (current == kok)
{
kok = null;
}
else if (issol)
{
parent.sol = null;
}
else
{
parent.sag = null;
}
}
//DURUM 2: TEK ÇOCUKLU DÜĞÜM
else if (current.sag == null)
{
if (current == kok)
{
kok = current.sol;
}
else if (issol)
{
parent.sol = current.sol;
}
else
{
parent.sag = current.sol;
}
}
else if (current.sol == null)
{
if (current == kok)
{
kok = current.sag;
}
else if (issol)
{
parent.sol = current.sag;
}
else
{
parent.sag = current.sag;
}
}
//DURUM 3: İKİ ÇOCUKLU DÜĞÜM
else
{
IkiliAramaAgacDugumu successor = Successor(current);
if (current == kok)
{
kok = successor;
}
else if (issol)
{
parent.sol = successor;
}
else
{
parent.sag = successor;
}
successor.sol = current.sol;
}
return(true);
}
public IkiliAramaAgaci(IkiliAramaAgacDugumu kok)
{
this.kok = kok;
}
private void Ziyaret(IkiliAramaAgacDugumu dugum)
{
dugumler += "Adı-Soyadı:" + dugum.veri.ad + " " + "Mezun Bilgileri--> " + dugum.veri.MezunBilgiListesi.DisplayElements() + Environment.NewLine + Environment.NewLine;
}