6 lines
157 B
Crystal
6 lines
157 B
Crystal
def mode (seq)
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seq.tally.group_by {|n, count| count }.max[1].map {|n, count| n }
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end
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p mode([1, 3, 6, 6, 6, 6, 7, 7, 12, 12, 17])
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p mode([1, 1, 2, 4, 4])
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