Cody

Problem 67. Find common elements in matrix rows

Solution 2939428

Submitted on 12 Sep 2020
This solution is locked. To view this solution, you need to provide a solution of the same size or smaller.

Test Suite

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

y = []

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

r = 1 2 y = []

Assertion failed.

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

r = 1 r = 2 y = []

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

r = 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 y = []

Assertion failed.

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

r = 1 r = 5 r = 4 r = 3 r = 7 r = 8 r = 2 r = 1 r = 5 r = 9 r = 10 r = 9 r = 8 r = 2 r = 1 r = 2 r = 6 r = 10 r = 4 r = 3 r = 4 r = 3 r = 7 r = 6 r = 5 r = 6 r = 10 r = 4 r = 8 r = 7 r = 8 r = 7 r = 6 r = 5 r = 9 r = 10 r = 9 r = 8 r = 7 r = 1 r = 2 r = 6 r = 10 r = 9 r = 8 r = 9 r = 3 r = 7 r = 6 r = 10 r = 1 r = 5 r = 9 r = 3 r = 2 r = 3 r = 2 r = 1 r = 10 r = 4 r = 5 r = 4 r = 3 r = 2 r = 6 r = 7 r = 1 r = 5 r = 4 r = 3 r = 4 r = 8 r = 2 r = 1 r = 5 r = 6 r = 10 r = 9 r = 8 r = 2 r = 3 r = 7 r = 6 r = 10 r = 4 r = 5 r = 4 r = 3 r = 7 r = 6 r = 7 r = 1 r = 5 r = 9 r = 8 r = 9 r = 8 r = 2 r = 1 r = 10 y = []

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

r = 3 4 5 6 7 8 9 4 5 6 7 8 9 1 5 6 7 8 9 1 2 6 7 8 9 1 2 3 5 7 8 9 1 2 3 4 8 9 1 2 3 4 5 9 1 2 3 4 5 6 1 2 3 4 5 6 7 r = 2 1 3 2 4 3 4 5 4 6 5 6 7 6 8 7 9 8 r = 3 7 r = 2 8 r = 1 9 y = []

Assertion failed.

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

r = 1 2 r = 2 r = 1 r = 1 2 r = 0×1 empty double column vector r = 0×1 empty double column vector y = []

Assertion failed.

Suggested Problems

More from this Author95

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!