public void Add(int value)
{
mListWithoutPrev current = new mListWithoutPrev(value);
if (first == null)
{
first = current;
last = current;
}
else
{
last.Next = current;
var temp = last;
last = current;
}
size++;
}
public mListWithoutPrev(int value, mListWithoutPrev res)
{
data = value;
next = res;
}
public mListWithoutPrev()
{
data = 0;
next = null;
}
public void DelFirst()
{
first = first.Next;
size = size - 1;
}
public mListWithoutPrev(int value)
{
data = value;
next = null;
}
public void AddToStart(int value)
{
var temp = first;
mListWithoutPrev current = null;
current = new mListWithoutPrev(value);
current.Next = temp;
first = current;
temp = first;
size++;
}
public void Insert (int position, int value)
{
var temp = first;
mListWithoutPrev current = null;
int counter = 0;
int k=0;
while (temp!=null)
{
if (position == 0 && k == 0)
{
this.AddToStart(value);
k++;
}
else if (position==counter)
{
mListWithoutPrev newElem = new mListWithoutPrev(value);
newElem.Next = temp;
current.Next = newElem;
size++;
break;
}
else if (counter == size-1 && position==size)
{
current = new mListWithoutPrev(value);
current.Next = null;
temp.Next = current;
last = current;
size++;
break;
}
current = temp;
temp = temp.Next;
counter++;
}
}
public void Delete(int position)
{
var temp = first;
mListWithoutPrev current = null;
int k = 0;
int counter = 0;
while (temp != null)
{
if (position == 0 && k==0)
{
this.DelFirst();
k++;
}
else if (position == size-1 && position==counter)
{
last = current;
last.Next = null;
size = size - 1;
k++;
break;
}
else if (position == counter)
{
current.Next = temp.Next;
temp = temp.Next;
size = size - 1;
}
current = temp;
temp = temp.Next;
counter++;
}
}
public void Clear()
{
mListWithoutPrev temp = first;
mListWithoutPrev current = null;
while (temp!=null)
{
current = temp;
temp = temp.Next;
current = null;
}
last = null;
first = null;
size=0;
}
public void Remove(int value)
{
var temp = first;
mListWithoutPrev current = null;
int k = 0;
while(temp!=null)
{
if (temp.Data == value && temp.Data != last.Data && temp.Data != first.Data&& k==0)
{
current.Next = temp.Next;
temp = temp.Next;
size = size - 1;
k++;
}
else if(temp.Data==value && temp.Data==last.Data&& k==0)
{
last = current;
last.Next = null;
size = size - 1;
k++;
break;
}
current = temp;
temp = temp.Next;
if (first.Data == value&& k==0 )
{
k++;
current = temp;
first = current;
temp = temp.Next;
size = size - 1;
}
}
}
