Cody

# Problem 67. Find common elements in matrix rows

Solution 2036389

Submitted on 27 Nov 2019 by Asif Newaz
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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))

y = []

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

f = 2 g = 1 y = 1.0000e+100 y = 1.0000e+100

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

f = 1 f = 1 1 g = 1×0 empty double row vector

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

f = 10 g = 1 y = 1 y = 1

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

f = 1 f = 1 1 f = 1 1 1 f = 1 1 1 1 f = 1 1 1 1 1 f = 1 1 1 1 1 1 f = 1 1 1 1 1 1 1 f = 1 1 1 1 1 1 1 1 f = 1 1 1 1 1 1 1 1 1 f = 1 1 1 1 1 1 1 1 1 1 f = 1 1 1 1 1 1 1 1 1 1 1 f = 1 1 1 1 1 1 1 1 1 1 1 1 f = 1 1 1 1 1 1 1 1 1 1 1 1 1 f = 1 1 1 1 1 1 1 1 1 1 1 1 1 1 f = 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 f = 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 f = 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 f = 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 f = 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 f = 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 f = 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 f = 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 f = 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 f = 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 f = 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 f = 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 f = 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 f = 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 f = 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 f = 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 f = Columns 1 through 30 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Column 31 1 f = Columns 1 through 30 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Columns 31 through 32 1 1 f = Columns 1 through 30 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Columns 31 through 33 1 1 1 f = Columns 1 through 30 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Columns 31 through 34 1 1 1 1 f = Columns 1 through 30 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Columns 31 through 35 1 1 1 1 1 f = Columns 1 through 30 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Columns 31 through 36 1 1 1 1 1 1 f = Columns 1 through 30 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Columns 31 through 37 1 1 1 1 1 1 1 f = Columns 1 through 30 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Columns 31 through 38 1 1 1 1 1 1 1 1 f = Columns 1 through 30 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Columns 31 through 39 1 1 1 1 1 1 1 1 1 f = Columns 1 through 30 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Columns 31 through 40 1 1 1 1 1 1 1 1 1 1 f = Columns 1 through 30 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Columns 31 through 41 1 1 1 1 1 1 1 1 1 1 1 f = Columns 1 through 30 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Columns 31 through 42 1 1 1 1 1 1 1 1 1 1 1 1 f = Columns 1 through 30 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Columns 31 through 43 1 1 1 1 1 1 1 1 1 1 1 1 1 f = Columns 1 through 30 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Columns 31 through 44 1 1 1 1 1 1 1 1 1 1 1 1 1 1 f = Columns 1 through 30 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Columns 31 through 45 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 f = Columns 1 through 30 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Columns 31 through 46 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 f = Columns 1 through 30 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Columns 31 through 47 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 f = Columns 1 through 30 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Columns 31 through 48 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 f = Columns 1 through 30 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Columns 31 through 49 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 f = Columns 1 through 30 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Columns 31 through 50 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 f = Columns 1 through 30 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Columns 31 through 51 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 f = Columns 1 through 30 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Columns 31 through 52 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 f = Columns 1 through 30 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...

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

f = 9 f = 9 9 f = 9 9 2 f = 9 9 2 2 f = 9 9 2 2 2 g = 1 2 y = 0 1 y = 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))

f = 2 f = 2 1 f = 2 1 1 f = 2 1 1 2 f = 2 1 1 2 0 f = 2 1 1 2 0 0 g = 1 4 y = -2 3 y = -2 3