初めにこの問題を試してみよう。

入力としてxを与え、それを2倍して結果をyに代入せよ。

Examples:

 Input  x = 2
 Output y is 4
 Input  x = 17
 Output y is 34

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Last Solution submitted on Feb 10, 2026

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Hoang Minh Tri 龙 和 是是是

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