回答編集履歴
1
add require
test
CHANGED
@@ -3,6 +3,10 @@
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3
3
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4
4
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5
5
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```ruby
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6
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+
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7
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+
require 'csv'
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8
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+
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9
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+
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6
10
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7
11
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rows = {}
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8
12
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