回答編集履歴
1
int
answer
CHANGED
@@ -1,3 +1,3 @@
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1
1
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```python
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2
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-
visitor[(i[0] - 2016) * 12 + (i[1] - 1)] += air_visit_df.ix[0]['visitors']
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2
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+
visitor[(int(i[0]) - 2016) * 12 + (int(i[1]) - 1)] += air_visit_df.ix[0]['visitors']
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3
3
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```
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