public void Add(T data)
{
RefItem <T> item = new RefItem <T>(data);
_innerList.Add(item);
_isSorted = false;
}
public void Add(T data, out RefItem <T> refItem)
{
RefItem <T> item = new RefItem <T>(data);
refItem = item;
if (_isSorted)
{
int pos = FindProperInsertPos(data);
if (pos >= _innerList.Count)
{
_innerList.Add(item);
}
else
{
_innerList.Insert(pos, item);
}
//SortData();
//int actualPos = BinSearch(item, 0, _innerList.Count - 1);
//if (actualPos != pos)
//{
//}
}
else
{
_innerList.Add(item);
}
}
public void Delete(RefItem <T> refItem)
{
//delete specfic node
if (_isSorted)
{
//use binary search to find node
//1. find middle point
int removeAt = refItem.NodeNumber;
for (int i = _innerList.Count - 1; i > removeAt; --i)
{
_innerList[i].NodeNumber = i - 1;
}
_innerList.RemoveAt(removeAt);
}
else
{
for (int i = _innerList.Count - 1; i >= 0; --i)
{
if (_innerList[i] == refItem)
{
_innerList.RemoveAt(i);
break;
}
}
}
//----------------------------------------------
//delete that item
}
int BinSearch(RefItem <T> refItem, int begin, int end)
{
int pos = begin + ((end - begin) / 2);
RefItem <T> sample = _innerList[pos];
if (refItem == sample)
{
}
else
{
if (sample.Data.CompareTo(refItem.Data) <= 0)
{
//search down
end = end - ((pos - begin) / 2);
if (end == begin)
{
return(-1);
}
return(BinSearch(refItem, begin, end));
}
else
{
//search up
begin = pos + (end - pos) / 2;
if (end == begin)
{
return(-1);
}
return(BinSearch(refItem, begin, end));
}
}
return(-1);//not found
}
public int Search(RefItem <T> refItem)
{
if (!_isSorted)
{
SortData();
}
return(BinSearch(refItem, 0, _innerList.Count - 1));
}
public void Add(out RefItem <T> refItem, T data)
{
RefItem <T> item = new RefItem <T>(data);
_innerList.Add(item);
_isSorted = false;
refItem = item;
}
public void Delete(RefItem <T> refItem)
{
//delete specfic node
if (_isSorted)
{
int pos = BinSearch(refItem, 0, _innerList.Count - 1);
if (pos > -1)
{
_innerList.RemoveAt(pos);
}
//int actualPos = -1;
//for (int i = _innerList.Count - 1; i >= 0; --i)
//{
// if (_innerList[i] == refItem)
// {
// actualPos = i;
// break;
// }
//}
//if (pos != actualPos)
//{
//}
//for (int i = _innerList.Count - 1; i >= 0; --i)
//{
// if (_innerList[i] == refItem)
// {
// _innerList.RemoveAt(i);
// break;
// }
//}
}
else
{
for (int i = _innerList.Count - 1; i >= 0; --i)
{
if (_innerList[i] == refItem)
{
_innerList.RemoveAt(i);
break;
}
}
}
//----------------------------------------------
//delete that item
}
int BinSearch(RefItem <T> refItem, int begin, int end)
{
TRY_AGAIN:
int pos = begin + ((end - begin) / 2);
RefItem <T> sample = _innerList[pos];
if (refItem == sample)
{
return(pos);
}
else
{
if (begin == end)
{
return(-1);//not found
}
if (sample.Data.CompareTo(refItem.Data) < 0)
{
//this is MaxFirst list
//data at this pos is lesser than refItem.Data
//we need to move to the begin side of the list
end = pos - 1;
goto TRY_AGAIN;
//return BinSearch(refItem, begin, pos - 1);
}
else
{
//this is MaxFirst list
//data at this pos is greater than refItem.Data
//we need to move to the end of this list
begin = pos + 1;
goto TRY_AGAIN;
//return BinSearch(refItem, pos + 1, end);
}
}
}
//
static int MaxFirstSort(RefItem <T> t1, RefItem <T> t2)
{
return(t2.Data.CompareTo(t1.Data));
}
