Cody

# Problem 67. Find common elements in matrix rows

Solution 1909109

Submitted on 22 Aug 2019
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### Test Suite

Test Status Code Input and Output
1   Fail
x = []; y_correct = []; assert(isequal(common_by_row(x),y_correct))

Unable to perform assignment because the indices on the left side are not compatible with the size of the right side. Error in common_by_row (line 5) y(idx) = i; Error in Test1 (line 3) assert(isequal(common_by_row(x),y_correct))

2   Fail
x = [1e100; 1e100]; y_correct = [1e100]; assert(isequal(common_by_row(x),y_correct))

Output argument "y" (and maybe others) not assigned during call to "common_by_row". Error in Test2 (line 3) assert(isequal(common_by_row(x),y_correct))

3   Fail
x = [1; 2]; y_correct = []; assert(isequal(common_by_row(x),y_correct))

Output argument "y" (and maybe others) not assigned during call to "common_by_row". Error in Test3 (line 3) assert(isequal(common_by_row(x),y_correct))

4   Fail
x = ones(10); y_correct = [1]; assert(isequal(common_by_row(x),y_correct))

Output argument "y" (and maybe others) not assigned during call to "common_by_row". Error in Test4 (line 3) assert(isequal(common_by_row(x),y_correct))

5   Fail
x = magic(10); y_correct = []; assert(isequal(common_by_row(x),y_correct))

Matrix dimensions must agree. Error in common_by_row (line 4) if sum(sum(x==i, 2) == true) == size(x, 2) Error in Test5 (line 3) assert(isequal(common_by_row(x),y_correct))

6   Fail
x = wilkinson(9); y_correct = [0 1]; assert(isequal(common_by_row(x),y_correct))

Matrix dimensions must agree. Error in common_by_row (line 4) if sum(sum(x==i, 2) == true) == size(x, 2) Error in Test6 (line 3) assert(isequal(common_by_row(x),y_correct))

7   Fail
x = [3 -2 1 NaN; NaN 0 -2 3]; y_correct = [-2 3]; assert(isequal(common_by_row(x),y_correct))

Matrix dimensions must agree. Error in common_by_row (line 4) if sum(sum(x==i, 2) == true) == size(x, 2) Error in Test7 (line 3) assert(isequal(common_by_row(x),y_correct))