Returning Values From Recursive Functions

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Huw Collingbourne is the author of “The Little Book Of Recursion”.

When recursive function-calls exit in the process of ‘unwinding’, the values of their local variables are lost. But often we want to retain those values. In this video I explain two ways of saving values that are local to recursive functions.

You can buy The Little Book Of Recursion from Amazon:
Or search for its ISBN: 978-1913132057
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Thank you very much, your explanation was very clear, it was very useful, you are a great teacher

haroldaaguirreg
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Thank you very helpful, I had the basic idea correct it’s just I’m so used to seeing values be explicitly added in stead of grabbing the return value and adding ass the stack unwinds. Really cool, really confusing

singularsquids
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I think i needed these words very much 😊

zerothemaster
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Awesome explanation. I tried your suggestions with the localized variables, but I still my function returns the previous frames.

Andy-mqfu
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Did I comment on this video a while ago? I thought I did, but I can't seem to find it.

hamirmahal
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please i have a problem:

my recursion function has two choices

one greater than somthing
the other one is less than or equal

and finally i will get some value

i want to know what are the items that made the final value

i want to save the right decisions only

i couldn't figure it out :(

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