Cody

# Problem 67. Find common elements in matrix rows

Solution 2182276

Submitted on 30 Mar 2020 by Oliver Warlow
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### Test Suite

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

B = [] B = []

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

B = [] B = 1.0000e+100 B = 1.0000e+100 B = 1.0000e+100

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

B = [] B = 1 B = 1 B = 1×0 empty double row vector B = []

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

B = [] B = 1 1 1 1 1 1 1 1 1 1 B = 1 B = 1 B = 1 B = 1 B = 1 B = 1 B = 1 B = 1 B = 1 B = 1

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

B = [] B = 92 99 1 8 15 67 74 51 58 40 B = 1 8 15 40 51 58 67 74 92 99 B = 1×0 empty double row vector B = 1×0 empty double row vector B = 1×0 empty double row vector B = 1×0 empty double row vector B = 1×0 empty double row vector B = 1×0 empty double row vector B = 1×0 empty double row vector B = 1×0 empty double row vector B = 1×0 empty double row vector B = []

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

B = [] B = 4 1 0 0 0 0 0 0 0 B = 0 1 4 B = 0 1 B = 0 1 B = 0 1 B = 0 1 B = 0 1 B = 0 1 B = 0 1 B = 0 1

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

B = [] B = 3 -2 1 NaN B = -2 1 3 B = -2 3