Hi monks

My problem should be easy to solve, but I am still struggling very much to find a proper solution to it.

I have two txt fils containing two lists of words - one word per line - with a score (the score simply being the row number). I'd like to merge the two files, ordering the words according with a new ranking computed by multiplying the scores of the same word in the two files.

The files have the following format:

FILE 1
hello 1
today 2
well 3
yes 4

[download]
FILE 2
hello 1
yes 2
today 3
well 4

[download]

The output should look like:

hello 1
today 6
yes 8
well 12

[download]

I am by now reading FILE 1 line by line, reading through FILE 2 to match the same word, multiplying the scores and write the result out into a new file. As the list are huge, it seems to me a very BAD way to do this task. Any idea how I could do it better? Sorry if my question is too simple...

Thanks, Cla

In reply to Merging two list with simple operation by fanticla

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