回答編集履歴
1
バグ修正
test
CHANGED
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@@ -11,3 +11,19 @@
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11
11
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print(fmt(1234567890))
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12
12
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13
13
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```
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14
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15
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16
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17
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# 追記:指摘のバグを修正した版
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18
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+
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19
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20
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21
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```python
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22
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23
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fmt = lambda n: n < 1000 and str(n) or fmt(n // 1000) + ',' + str(n % 1000).ljust(3, '0')
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24
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25
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26
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27
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print(fmt(1000))
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28
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29
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```
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