Create an N×N binary matrix that forms a filled diamond shape centered in the matrix. The diamond expands symmetrically toward the center row and contracts afterward, creating a visually pleasing mandala-style pattern.
Example (N = 5):
11011
10001
00000
10001
11011
Solve

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Last Solution submitted on Feb 02, 2026

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William Dyuman Joshi Christian Schröder Matthew Bolyard

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