Problem 43995. convert 2D array of ones and zeros to checkerboard array of [1,2] where the original array was ones and zero elsewhere

Given a 2D array of ones and zeros, generate an equivalent sized checkerboard array of ones and twos. The checkerboard pattern starts with 2:

[2,1,2,1,2;
1,2,1,2,1;
2,1,2,1,2];

Then set this checkerboard array to zero wherever the original was zero.

Solve

Solution Stats

58.11% Correct | 41.89% Incorrect
Last Solution submitted on Jan 16, 2026

Problem Comments

Solution Comments

Show comments

Problem Recent Solvers30

Suggested Problems

Problem Tags

arrays

Community Treasure Hunt

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

Start Hunting!