5 lines
179 B
Ruby
5 lines
179 B
Ruby
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a = ["John", "Serena", "Bob", "Mary", "Serena"]
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b = ["Jim", "Mary", "John", "Jim", "Bob"]
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# the union minus the intersection:
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p sym_diff = (a | b)-(a & b) # => ["Serena", "Jim"]
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