// Increment the value of x with the value d
public void increment(ulong key, IIncrementable <T> v)
{
ulong hash = h(key);
Node <T> head = nodeList[hash];
if (head == null)
{
nodeList[hash] = new Node <T>(key, v);
count++;
return;
}
while (head.Key != key && head.Next != null)
{
head = head.Next;
}
if (head.Key == key)
{
head.Data.Increment(v.GetValue());
}
else
{
head.Next = new Node <T>(key, v);
count++;
}
}