サイズが n*2n の "mirror" 行列（対称行列）を作成しましょう。

例: n=2 の場合、以下のような出力を返します。

m = [ 1 2 2 1
       1 2 2 1 ]

n = 3 の場合、以下のようになります。

 m = [ 1 2 3 3 2 1
       1 2 3 3 2 1
       1 2 3 3 2 1 ]
Solve

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Last Solution submitted on Feb 12, 2026

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Matthew Bolyard Hoang Minh Tri 泽伟 和

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