Given a x-by-x matrix filled with zeros (x is odd and > 3). Use 3s to draw a number 3 into it! Like this:
x = 5, y =
3 3 3 3 3
0 0 0 0 3
3 3 3 3 3
0 0 0 0 3
3 3 3 3 3
x = 7, y =
3 3 3 3 3 3 3
0 0 0 0 0 0 3
0 0 0 0 0 0 3
3 3 3 3 3 3 3
0 0 0 0 0 0 3
0 0 0 0 0 0 3
3 3 3 3 3 3 3
Solve

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Last Solution submitted on Feb 14, 2026

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泽伟 bao 灰 夕

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