回答編集履歴
1
修正
answer
CHANGED
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@@ -17,15 +17,12 @@
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17
17
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ret = []
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18
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group = []
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19
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for i in range(len(serial_numbers)):
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20
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-
if i
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20
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+
if i==len(serial_numbers)-1 or serial_numbers[i+1]-serial_numbers[i] != 1:
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21
21
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len(group) > 0 and ret.append(group)
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22
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+
group = []
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22
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-
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23
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+
else:
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23
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-
if serial_numbers[i+1]-serial_numbers[i] == 1:
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len(group) == 0 and group.append(serial_numbers[i])
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group.append(serial_numbers[i+1])
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26
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-
else:
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27
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len(group) > 0 and ret.append(group)
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28
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-
group = []
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29
26
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print(["{}-{}".format(c[0],c[-1]) for c in ret])
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28
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```
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