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

1687 Solutions

716 Solvers

Last Solution submitted on Jun 06, 2026

Last 200 Solutions

Problem Comments

Solution Comments

Show comments

Problem Recent Solvers716

Andrew Couchman Colby Léo 博文

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!