Problem 67. Find common elements in matrix rows

Solution 1292487

Submitted on 17 Oct 2017 by Ratchet_Hamster

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Test	Status	Code Input and Output
1	Pass	x = []; y_correct = []; assert(isequal(common_by_row(x),y_correct)) uni = 0×1 empty double column vector
2	Pass	x = [1e100; 1e100]; y_correct = [1e100]; assert(isequal(common_by_row(x),y_correct)) uni = 1.0000e+100
3	Pass	x = [1; 2]; y_correct = []; assert(isequal(common_by_row(x),y_correct)) uni = 1 2
4	Pass	x = ones(10); y_correct = [1]; assert(isequal(common_by_row(x),y_correct)) uni = 1
5	Pass	x = magic(10); y_correct = []; assert(isequal(common_by_row(x),y_correct)) uni = 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100
6	Pass	x = wilkinson(9); y_correct = [0 1]; assert(isequal(common_by_row(x),y_correct)) uni = 0 1 2 3 4
7	Pass	x = [3 -2 1 NaN; NaN 0 -2 3]; y_correct = [-2 3]; assert(isequal(common_by_row(x),y_correct)) uni = -2 0 1 3