06-18-2014
Do you need to keep track of the line word counts until end of processing, or just can you just output them as you go?
If it's the latter then you only need to maintain your linked list while you're processing any given line, so it shouldn't be a significant performance hit.
Alternatively, you could extend whatever data structure you're using to hold the total count per word to include the per-line data for each word as well. Again, that means your lists won't be too long.
Also, you could use a hash table rather than a linked list.
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