Draw a '0' in a one matrix! - MATLAB Cody - MATLAB Central

Problem 50912. Draw a '0' in a one matrix!

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Given a x-by-x matrix filled with ones (x is odd and > 3). Use 0s to draw a number 0 into it! Like this:
x = 5, y =
1 0 0 0 1
0 1 1 1 0
0 1 1 1 0
0 1 1 1 0
1 0 0 0 1
x = 7, y =
1 0 0 0 0 0 1
0 1 1 1 1 1 0
0 1 1 1 1 1 0
0 1 1 1 1 1 0
0 1 1 1 1 1 0
0 1 1 1 1 1 0
1 0 0 0 0 0 1
Solve

Solution Stats

43.16% Correct | 56.84% Incorrect
Last Solution submitted on Mar 05, 2025

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Primes and Rough Numbers, Basic ideas
What is a rough number? What can they be used...
John D'Errico in Tips & Tricks
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5
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