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Overall Editorial

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C - Nice Grid

• Official Editorial by leaf1415
• Official Editorial by physics0523
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D - Climbing Takahashi

• Official Editorial by kyopro_friends
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E - 2^a b^2

• Official Editorial by mechanicalpenciI
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• User Editorial by sounansya
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• sqrt の誤差について by rsk0315

F - Shapes

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• User Editorial by kusano

G - Gravity

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