回答編集履歴
1
answer
CHANGED
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@@ -5,7 +5,7 @@
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5
5
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6
6
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B=0
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7
7
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for i in range(3):
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8
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-
Ai = locals()
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8
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+
Ai = locals().get(f'A{i+1}', 0)
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9
9
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B += (i + 1) * Ai
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10
10
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11
11
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print(B) # 140
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