Only once: cleaning up your columns - MATLAB Cody - MATLAB Central

Problem 2045. Only once: cleaning up your columns

Difficulty:
(64)
Rate

We have a logical array (with ones and zeroes). It is simple: after processing every column may only contain a single true value, or none at all. Not on any row, but only the uppermost occurrence in the input array, if any.

For example:

 [ 0 0 1 1
   0 1 0 1
   0 0 1 1 ] 
becomes 
 [ 0 0 1 1
   0 1 0 0
   0 0 0 0 ]

And of course, your solution should be the most innovative, shortest and most elegant one.

Solve

Solution Stats

60.66% Correct | 39.34% Incorrect
Last Solution submitted on Jun 27, 2024

Problem Comments

Solution Comments

Show comments
Registration Now Open for MathWorks AUTOMOTIVE CONFERENCE 2025
...
Hello Community, We're excited to announce that registration is now open for the...

Problem Recent Solvers32

Suggested Problems

More from this Author31

Community Treasure Hunt

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

Start Hunting!
Go to top of page