8 lines
263 B
Ruby
8 lines
263 B
Ruby
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ary = [["UK", "London"],
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["US", "New York"],
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["US", "Birmingham"],
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["UK", "Birmingham"]]
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p ary.sort {|a,b| a[1] <=> b[1]}
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# MRI reverses the Birminghams:
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# => [["UK", "Birmingham"], ["US", "Birmingham"], ["UK", "London"], ["US", "New York"]]
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