回答編集履歴
1
修正
answer
CHANGED
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@@ -11,5 +11,5 @@
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11
11
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return ary.filter(function(y){
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12
12
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return y[0] == x;
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13
13
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});
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14
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-
})
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14
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+
});
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15
15
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```
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