回答編集履歴
3
表現の修正
test
CHANGED
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@@ -16,9 +16,9 @@
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16
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-
**
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+
**明らかなバグ**
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20
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-
b_pairs
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21
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b_pairsを毎回上書きして、前の周回のデータを吹っ飛ばしてます。
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2
修正
test
CHANGED
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@@ -44,7 +44,9 @@
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44
44
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b_pairs += list(itertools.combinations(b, i))
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47
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-
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+
# 単に b_pairs += itertools.combinations(b, i) でも可
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48
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print(b_pairs)
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1
追記
test
CHANGED
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@@ -59,3 +59,29 @@
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59
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[(1, 2), (1, 3), (2, 3), (1, 2, 3)]
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```
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62
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63
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64
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おまけ
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66
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67
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---
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68
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69
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こういうときは[more-itertools](https://more-itertools.readthedocs.io/en/stable/index.html)が便利です。
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70
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71
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```Python
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72
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73
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>>> list(more_itertools.powerset(b))
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74
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75
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[(), (1,), (2,), (3,), (1, 2), (1, 3), (2, 3), (1, 2, 3)]
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>>> [s for s in more_itertools.powerset(b)]
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[(), (1,), (2,), (3,), (1, 2), (1, 3), (2, 3), (1, 2, 3)]
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80
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81
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>>>
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82
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83
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>>> [s for s in more_itertools.powerset(b) if len(s) >= 2]
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84
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85
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[(1, 2), (1, 3), (2, 3), (1, 2, 3)]
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86
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87
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```
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