#🔒 I need help. I am doing a simulation and I want to check smth but i think it's VERY inneficient.

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onyx zinc
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Can someone help me please?

hushed questBOT
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@onyx zinc

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gusty haven
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by inefficient you mean the way used to check?(if statements)

onyx zinc
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So I've got a simulation that simulates the natural selection, some individuals are there adn evolve, they adapt to survive more. I want to check how many times have they have reproduced in their whole life. There may be in total 700 000 people to check in total, and I think doing a loop to check it one by one might be inneficient

onyx zinc
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Well it might not be slow, if it is not tell me pls

gusty haven
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idk then sorry

stark fog
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i don't really get how you'd check that (do you store parentage or something?), so perhaps start by writing an inefficient solution and maybe you'll see how to optimize it.

whole aspen
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maybe store everyone's relationship in a tree?

onyx zinc
stark fog
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So what's the problem then? You can read anyone's child count straight from their attribute.

onyx zinc
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Yep ik but I won't know the average, I want to know how many times have they reproduced by average

whole aspen
onyx zinc
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Is it? Then I will do it that way thx

stark fog
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You could add 1 to a global counter in addition to the personal one every reproduction. But it's a bit of a silly optimization to do prematurely; realistically just do an extra loop at the end.

onyx zinc
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I will do an extra loop

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But I have another question stil

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Still*

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Do I have to return a list if the list is modified inside a function or not?

fading nymph
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no you dont have to

onyx zinc
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K thx 🙂

whole aspen
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i don't think it's good practice to have global variables inside functions though

fading nymph
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but you should think about whether it makes sense to actually do that or not

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usually thats a result of bad design

fading nymph
onyx zinc
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I declare the list inside the main funct and then pass it to the other functio

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Is there any better and optimal way? I am thinking that a list of 700 00 elements going through functions every time might be bad

whole aspen
fading nymph
onyx zinc
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Ok I think I have not explained myself well enough

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That list that I say it contains 700 000 objects is a list of every dead object

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So therefore, at the end of the sim I will be able to go through them and divide the number of times everyone reproduced by the number of individuals

fading nymph
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then do a loop

stark fog
onyx zinc
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I will do it this way then, thanks 🙂

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!close

hushed questBOT
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