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Question: Count number of lists

Question:Count number of lists

Vic 50
August 05 2016
0

Hi,
I have this lists and I have written a program to process these lists and produce only the lists that certisfy a certain condition. Instead of printing these lists, I want just the total number of the lists produced. How can I do these? The only thing I can think of now is to append the lists in an Array and get the number of elements in the array, but this will be very inefficient since I am looking at a very big number here.

 

Any help is appreciated,

Thanks.

Vic.
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