Cody

# Problem 67. Find common elements in matrix rows

Solution 1011155

Submitted on 12 Oct 2016 by Jamil Kasan
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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))

r = 0 c = 0 y = [] y = []

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

r = 2 c = 1 y = [] ans = 1.0000e+100 ans = 1 y = 1.0000e+100 y = 1.0000e+100

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

r = 2 c = 1 y = [] ans = 1 ans = 0 y = []

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

r = 10 c = 10 y = [] ans = 1 ans = 90 y = 1 ans = 1 ans = 90 y = 1 1 ans = 1 ans = 90 y = 1 1 1 ans = 1 ans = 90 y = 1 1 1 1 ans = 1 ans = 90 y = 1 1 1 1 1 ans = 1 ans = 90 y = 1 1 1 1 1 1 ans = 1 ans = 90 y = 1 1 1 1 1 1 1 ans = 1 ans = 90 y = 1 1 1 1 1 1 1 1 ans = 1 ans = 90 y = 1 1 1 1 1 1 1 1 1 ans = 1 ans = 90 y = 1 1 1 1 1 1 1 1 1 1 y = 1

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

r = 10 c = 10 y = [] ans = 92 ans = 0 ans = 99 ans = 0 ans = 1 ans = 0 ans = 8 ans = 0 ans = 15 ans = 0 ans = 67 ans = 0 ans = 74 ans = 0 ans = 51 ans = 0 ans = 58 ans = 0 ans = 40 ans = 0 y = []

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

r = 9 c = 9 y = [] ans = 4 ans = 1 ans = 1 ans = 17 y = 1 ans = 0 ans = 50 y = 1 0 ans = 0 ans = 50 y = 1 0 0 ans = 0 ans = 50 y = 1 0 0 0 ans = 0 ans = 50 y = 1 0 0 0 0 ans = 0 ans = 50 y = 1 0 0 0 0 0 ans = 0 ans = 50 y = 1 0 0 0 0 0 0 ans = 0 ans = 50 y = 1 0 0 0 0 0 0 0 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))

r = 2 c = 4 y = [] ans = 3 ans = 1 y = 3 ans = -2 ans = 1 y = 3 -2 ans = 1 ans = 0 ans = NaN ans = 0 y = -2 3