What is the need of memoization in python -


i reading article

http://programmingzen.com/2009/05/18/memoization-in-ruby-and-python/

actually can please explain example happen if don't use it. not able find problem solved it. want know 2 example in 1 simple example without memoization , other memoization can see why use it.

if example can based on web realted stuff or django cam more understand it. not techy in algorithms

explained simply, i'll put question this. how many "e" characters there in block of text?

now, how many "e" characters there in first block of text?

and now, how many "e" characters there in first block of text?

finally, how many "e" characters there in first block of text?

if wondering, there 9 "e"s , 2 "e"s in first block. second run through, memorized how many "e"s there in first block. that's memoization count function/method on block text.


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