Cody

Problem 796. Removing rows from a matrix is easy - but what about inserting rows?

Solution 2271290

Submitted on 11 May 2020
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Test Suite

Test Status Code Input and Output
1   Fail
A = 1; IND = 1; b = 1; y_correct = [1;1]; assert(isequal(insertRows(A, IND, b), y_correct))

y = 1 0

Assertion failed.
2   Fail
A = [0 0; 1 1]; IND = [1 1 1 2]; b = NaN; y_correct = [0 0;NaN NaN;NaN NaN;NaN NaN;1 1;NaN NaN]; assert(isequalwithequalnans(insertRows(A, IND, b), y_correct))

y = NaN NaN NaN NaN NaN NaN 0 0 NaN NaN 0 0

Assertion failed.
3   Fail
A = [1 1; 3 3; 4 4]; IND = [1 3]; b = [2 2; 5 5]; y_correct = [1 1;2 2;3 3;4 4;5 5]; assert(isequal(insertRows(A, IND, b), y_correct))

y = 2 2 2 5 5 5 4 4 4 0 0 0 2 2 2 5 5 5

Assertion failed.
4   Fail
A = (1:2:10)'; IND = 1:5; b = (2:2:10)'; y_correct = (1:10)'; assert(isequal(insertRows(A, IND, b), y_correct))

y = 2 2 2 2 2 4 4 4 4 4 6 6 6 6 6 8 8 8 8 8 10 10 10 10 10 9 9 9 9 9 2 2 2 2 2 4 4 4 4 4 6 6 6 6 6 8 8 8 8 8 10 10 10 10 10 0 0 0 0 0 2 2 2 2 2 4 4 4 4 4 6 6 6 6 6 8 8 8 8 8 10 10 10 10 10 0 0 0 0 0 2 2 2 2 2 4 4 4 4 4 6 6 6 6 6 8 8 8 8 8 10 10 10 10 10 0 0 0 0 0 2 2 2 2 2 4 4 4 4 4 6 6 6 6 6 8 8 8 8 8 10 10 10 10 10

Assertion failed.
5   Fail
A = zeros(10,5); IND = [3,7]; b = rand(2,5); y_correct = [zeros(3,5); b(1,:); zeros(4,5); b(2,:); zeros(3,5)]; assert(isequal(insertRows(A, IND, b), y_correct))

y = 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.1341 0.1341 0.1341 0.1341 0.1341 0.1341 0.1341 0.1341 0.1341 0.1341 0.1605 0.1605 0.1605 0.1605 0.1605 0.1605 0.1605 0.1605 0.1605 0.1605 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.1341 0.1341 0.1341 0.1341 0.1341 0.1341 0.1341 0.1341 0.1341 0.1341 0.1605 0.1605 0.1605 0.1605 0.1605 0.1605 0.1605 0.1605 0.1605 0.1605 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

Assertion failed.
6   Pass
assert(isempty(strfind(evalc('type insertRows'), 'regexp')));

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