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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 7387c8f97b
commit cb5bb5e222
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Task/N-queens-problem/J/n-queens-problem-1.j Normal file
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perm =: ! A.&i. ] NB. all permutations of integers 0 to y
comb2 =: (, #: I.@,@(</)&i.)~ NB. all size 2 combinations of integers 0 to y
mask =: [ */@:~:&(|@-/) {
queenst=: comb2 (] #"1~ mask)&.|: perm

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Task/N-queens-problem/J/n-queens-problem-2.j Normal file
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$queenst 8
92 8

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Task/N-queens-problem/J/n-queens-problem-3.j Normal file
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{.queenst 8
0 4 7 5 2 6 1 3