Problem 44648. Zigzag of square matrix

Created by Jamal Nasir

Like (1)

Solve Later

find zigzag of square matrix in one dimension array a=[1 2 3;4 5 6;7 8 9]; should return b= [1 2 4 7 5 3 6 8 9]

Solve

Solution Stats

67 Solutions
19 Solvers

Last Solution submitted on Jan 29, 2026

Last 200 Solutions

Problem Comments

6 Comments

6 Comments

Show 3 older comments

J-G van der Toorn on 22 May 2018

I guess the assignment should read:
assert(isequal(zigzag(a),y_correct))

David Verrelli on 22 May 2018

While you are amending the Test Suite, please add more test cases (at least four), to ensure only general solutions are successful, not hard-coded submissions. (See Problem 44617 for further ideas.)
Please also check the Solution Template. Currently there is a lot of code in the Solution Template which everyone can see! Usually the Solution Template would be almost blank. —DIV

goc3 on 17 Jul 2018

This problem has been fixed so that it (1) no longer displays a solution in the function template, (2) is solvable, and (3) has additional test cases added.

goc3 on 17 Jul 2018

By the way, this problem is essentially identical to https://www.mathworks.com/matlabcentral/cody/problems/1167-matrix-zigzag.

bainhome on 30 Jul 2018

@goc3: This two problems are not exactly identical, since this problem have a test(the last one) which contains 0 element, this pretty much change everything, if some particular function like nonzeros, etc is considered to be used.

goc3 on 30 Jul 2018

@bainhome: then it's a good thing I added that extra test case to make the problems slightly different.

Solution Comments

Show comments

Problem Recent Solvers19

Problem Tags

Community Treasure Hunt

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

Start Hunting!

Problem 44648. Zigzag of square matrix

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers19

Suggested Problems

More from this Author2

Problem Tags

Community Treasure Hunt

Problem 44648. Zigzag of square matrix

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers19

Suggested Problems

More from this Author2

Problem Tags

Community Treasure Hunt

Players