16 lines
387 B
Plaintext
16 lines
387 B
Plaintext
func check_perm(arr) {
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var hash = Hash()
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hash.set_keys(arr...)
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arr.each { |s|
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{
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var t = (s.substr(1) + s.substr(0, 1))
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hash.has_key(t) || return t
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} * s.len
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}
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}
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var perms = %w(ABCD CABD ACDB DACB BCDA ACBD ADCB CDAB DABC BCAD CADB CDBA
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CBAD ABDC ADBC BDCA DCBA BACD BADC BDAC CBDA DBCA DCAB)
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say check_perm(perms)
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