Cody

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

Solution 385407

Submitted on 14 Jan 2014 by priyanka shrivastava
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### Test Suite

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))

x = 1 2 3 4 2 1 2 3 4 2 1 2 3 4 2 1 2 3 4 2 x = 1 3 3 4 2 1 3 3 4 2 1 3 3 4 2 1 3 3 4 2 x = 1 3 2 4 2 1 3 2 4 2 1 3 2 4 2 1 3 2 4 2 x = 1 3 2 4 1 3 2 4 1 3 2 4 1 3 2 4 y = 1 3 2 4 1 3 2 4 1 3 2 4 1 3 2 4

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))

x = 1 2 3 4 2 5 6 7 8 6 1 2 3 4 2 5 6 7 8 6 x = 1 3 3 4 2 5 7 7 8 6 1 3 3 4 2 5 7 7 8 6 x = 1 3 2 4 2 5 7 6 8 6 1 3 2 4 2 5 7 6 8 6 x = 1 3 2 4 5 7 6 8 1 3 2 4 5 7 6 8 y = 1 3 2 4 5 7 6 8 1 3 2 4 5 7 6 8

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