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

Created by Szász Botond

Solve Later

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 =
0	0	0	1
1	1	1	0
1	1	1	0
1	1	1	0
0	0	0	1
x = 7, y = 
0	0	0	0	0	1
1	1	1	1	1	0
1	1	1	1	1	0
1	1	1	1	1	0
1	1	1	1	1	0
1	1	1	1	1	0
0	0	0	0	0	1

Solve

Solution Stats

4313 Solutions
1812 Solvers

Last Solution submitted on Jan 13, 2026

Last 200 Solutions

Problem Comments

2 Comments

2 Comments

Jesús on 8 Aug 2022

I got the output to be identical to the assertions, but somehow it detects it as assertion failed. Is there an issue with the test cases?

Aaron on 12 Dec 2022

Nice one

Solution Comments

Show comments

Problem Recent Solvers1812

Problem Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

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

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers1812

Suggested Problems

More from this Author12

Problem Tags

Community Treasure Hunt

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

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers1812

Suggested Problems

More from this Author12

Problem Tags

Community Treasure Hunt

Players