Problem 1321. Given a 4x4 matrix, swap the two middle columns

Solution 519561

Submitted on 2 Nov 2014 by Guillaume

This solution is locked. To view this solution, you need to provide a solution of the same size or smaller.

This solution is outdated. To rescore this solution, sign in.

Test	Status	Code Input and Output
1	Pass	%% x =[1 2 3 4;1 2 3 4;1 2 3 4;1 2 3 4]; y_correct =[1 3 2 4;1 3 2 4;1 3 2 4;1 3 2 4]; assert(isequal(swapmid(x),y_correct))
2	Pass	%% x =[1 2 3 4;5 6 7 8;1 2 3 4;5 6 7 8]; y_correct =[1 3 2 4;5 7 6 8;1 3 2 4;5 7 6 8]; assert(isequal(swapmid(x),y_correct))

Test

Status

Code Input and Output

Pass

%% x =[1 2 3 4;1 2 3 4;1 2 3 4;1 2 3 4]; y_correct =[1 3 2 4;1 3 2 4;1 3 2 4;1 3 2 4]; assert(isequal(swapmid(x),y_correct))

Pass

%% x =[1 2 3 4;5 6 7 8;1 2 3 4;5 6 7 8]; y_correct =[1 3 2 4;5 7 6 8;1 3 2 4;5 7 6 8]; assert(isequal(swapmid(x),y_correct))