7 lines
293 B
Crystal
7 lines
293 B
Crystal
n = ARGV.fetch(0, 41).to_i # n default is 41 or ARGV[0]
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k = ARGV.fetch(1, 3).to_i # k default is 3 or ARGV[1]
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prisoners = (0...n).to_a
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while prisoners.size > 1; prisoners.rotate!(k-1).shift end
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puts "From #{n} prisoners, eliminating each prisoner #{k} leaves prisoner #{prisoners.first}."
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