回答編集履歴
1
書式の改善
test
CHANGED
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@@ -4,7 +4,11 @@
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4
4
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5
5
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6
6
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7
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+
```
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8
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+
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7
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-
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9
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+
undefined method 'id' for nil:NilClass
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10
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+
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11
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+
```
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8
12
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9
13
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10
14
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