Cody

# Problem 67. Find common elements in matrix rows

Solution 3433518

Submitted on 27 Oct 2020 at 8:19
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### Test Suite

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

Unrecognized function or variable 't'. Error in common_by_row (line 16) y = unique(t); Error in Test1 (line 3) assert(isempty(common_by_row(x)))

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

t = 1.0000e+100

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

Deletion requires an existing variable. Error in common_by_row (line 12) t(j) = []; Error in Test3 (line 3) assert(isempty(common_by_row(x)))

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

t = 1 t = 1 1 t = 1 1 1 t = 1 1 1 1 t = 1 1 1 1 1 t = 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1 t = 1 1 1 1 1 1 1 1 1 1

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

Deletion requires an existing variable. Error in common_by_row (line 12) t(j) = []; Error in Test5 (line 3) assert(isempty(common_by_row(x)))

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

Deletion requires an existing variable. Error in common_by_row (line 12) t(j) = []; 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))

t = 3 t = 3 -2

Matrix index is out of range for deletion. Error in common_by_row (line 12) t(j) = []; Error in Test7 (line 3) assert(isequal(common_by_row(x),y_correct))

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