text: Cody
  
  Problem 67. Find common elements in matrix rows
  
  Solution 2015262
  
  Submitted on 12 Nov 2019 by Weiyang Zhang
  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   Pass
  x = [1e100; 1e100]; y_correct = [1e100]; assert(isequal(common_by_row(x),y_correct))
  
  y = [] row_unique = 1 2
  
  3   Pass
  x = [1; 2]; y_correct = []; assert(isequal(common_by_row(x),y_correct))
  
  y = [] row_unique = 1
  
  4   Pass
  x = ones(10); y_correct = [1]; assert(isequal(common_by_row(x),y_correct))
  
  y = [] row_unique = 1 2 3 4 5 6 7 8 9 10
  
  5   Pass
  x = magic(10); y_correct = []; assert(isequal(common_by_row(x),y_correct))
  
  y = [] row_unique = 1 row_unique = 1 row_unique = 1 row_unique = 1 row_unique = 1 row_unique = 1 row_unique = 1 row_unique = 1 row_unique = 1 row_unique = 1
  
  6   Pass
  x = wilkinson(9); y_correct = [0 1]; assert(isequal(common_by_row(x),y_correct))
  
  y = [] row_unique = 1 2 3 4 5 6 7 8 9 row_unique = 1 2 3 4 5 6 7 8 9 row_unique = 1 9
  
  7   Pass
  x = [3 -2 1 NaN; NaN 0 -2 3]; y_correct = [-2 3]; assert(isequal(common_by_row(x),y_correct))
  
  y = [] row_unique = 1 2 row_unique = 1 row_unique = 1 2 row_unique = 0×1 empty double column vector
explanation: The document contains a series of test cases for a solution to a problem. The problem is to find common elements in the rows of a matrix. Each test case includes an input matrix `x`, the expected output `y_correct`, and an assertion to check if the function `common_by_row(x)` returns the correct result. The document does not contain a single question or a question and answer; instead, it is a set of test cases.
distilabel_metadata.content: Evaluate the user given text extract and determine if it contains a math question and optionally and answer to this question.
  
  Output rules:
  
  1. Briefly describe the document and mention if it contains a question or a question and answer.
  2. Finalize the output with: Label: no-question,question,question-and-answer,multiple-question,multiple-question-and-answer
distilabel_metadata.role: system
distilabel_metadata.content: Cody
  
  Problem 67. Find common elements in matrix rows
  
  Solution 2015262
  
  Submitted on 12 Nov 2019 by Weiyang Zhang
  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   Pass
  x = [1e100; 1e100]; y_correct = [1e100]; assert(isequal(common_by_row(x),y_correct))
  
  y = [] row_unique = 1 2
  
  3   Pass
  x = [1; 2]; y_correct = []; assert(isequal(common_by_row(x),y_correct))
  
  y = [] row_unique = 1
  
  4   Pass
  x = ones(10); y_correct = [1]; assert(isequal(common_by_row(x),y_correct))
  
  y = [] row_unique = 1 2 3 4 5 6 7 8 9 10
  
  5   Pass
  x = magic(10); y_correct = []; assert(isequal(common_by_row(x),y_correct))
  
  y = [] row_unique = 1 row_unique = 1 row_unique = 1 row_unique = 1 row_unique = 1 row_unique = 1 row_unique = 1 row_unique = 1 row_unique = 1 row_unique = 1
  
  6   Pass
  x = wilkinson(9); y_correct = [0 1]; assert(isequal(common_by_row(x),y_correct))
  
  y = [] row_unique = 1 2 3 4 5 6 7 8 9 row_unique = 1 2 3 4 5 6 7 8 9 row_unique = 1 9
  
  7   Pass
  x = [3 -2 1 NaN; NaN 0 -2 3]; y_correct = [-2 3]; assert(isequal(common_by_row(x),y_correct))
  
  y = [] row_unique = 1 2 row_unique = 1 row_unique = 1 2 row_unique = 0×1 empty double column vector
distilabel_metadata.role: user
distilabel_metadata.raw_output_q_a_detector_0: The document contains a series of test cases for a solution to a problem. The problem is to find common elements in the rows of a matrix. Each test case includes an input matrix `x`, the expected output `y_correct`, and an assertion to check if the function `common_by_row(x)` returns the correct result. The document does not contain a single question or a question and answer; instead, it is a set of test cases.
  
  Label: multiple-question-and-answer