Given a numeric array of arbitrary size, return the row index of the last zero for each column. If a column contains all nonzero values, return 0 for that column. Your output should be a row vector.

Example

a = [0 0 9 0;
     0 0 1 8;
     0 0 4 0;
     0 0 2 3;
     0 6 7 5];

z = [5 4 0 3]
Solve

Solution Stats

1702 Solutions

725 Solvers

Last Solution submitted on Jul 08, 2026

Last 200 Solutions

Problem Comments

Solution Comments

Show comments

Problem Recent Solvers725

Olivier Walos Sree Harsha Caitlin David

Suggested Problems

More from this Author43

Community Treasure Hunt

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

Start Hunting!