回答編集履歴
2
ちょい修正
test
CHANGED
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@@ -4,11 +4,11 @@
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4
4
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5
5
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```rb
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6
6
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7
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-
pages.each_with_object(Hash.new{|h,k|h[k] = []}){|
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7
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+
pages.each_with_object(Hash.new{|h,k|h[k] = []}){|page, memo|
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8
8
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9
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-
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9
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+
page[:data][:category].each{|category|
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10
10
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11
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-
memo[
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11
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+
memo[category] << page
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12
12
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13
13
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}
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14
14
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1
誤送信
test
CHANGED
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@@ -1,3 +1,7 @@
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1
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+
group_by一発というのはできないので地道に
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2
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+
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3
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+
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4
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+
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1
5
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```rb
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2
6
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3
7
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pages.each_with_object(Hash.new{|h,k|h[k] = []}){|it, memo|
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