Problem 55015. Draw a fancy '7' in a zero matrix!

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

Solution Stats

77.42% Correct | 22.58% Incorrect
Last Solution submitted on Feb 20, 2025

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