Problem 1699. Find last zero for each column

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

45.12% Correct | 54.88% Incorrect
Last Solution submitted on Jan 13, 2026

Problem Comments

Solution Comments

Show comments

Problem Recent Solvers685

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!