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Ingy döt Net 2023-07-01 11:58:00 -04:00
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Task/Evolutionary-algorithm/Ursala/evolutionary-algorithm.ursala Normal file
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#import std
#import nat
rand_char = arc ' ABCDEFGHIJKLMNOPQRSTUVWXYZ'
target = 'METHINKS IT IS LIKE A WEASEL'
parent = rand_char* target
fitness = length+ (filter ~=)+ zip/target
mutate("string","rate") = "rate"%~?(rand_char,~&)* "string"
C = 32
evolve = @iiX ~&l->r @r -*iota(C); @lS nleq$-&l+ ^(fitness,~&)^*C/~&h mutate\*10
#cast %s
main = evolve parent