SherlockSecure Bugcrowd submitted a Comment to Problem 158. Is my wife right? Now with even more wrong husband difficult :)
22 hours and 44 minutes ago 
SherlockSecure Bugcrowd submitted a Comment to Problem 7244. Times 3 problem nice problem
22 hours and 45 minutes ago 
Parv Verma submitted a Comment to Problem 2024. Triangle sequence It was a really great problem to solve. For me doing the steps as mentioned on paper helped a lot for proper visualization of the problem, and to understand the flow.
Thanks Tanya Morton for the problem exercise.
on 6 Dec 2019 at 18:54 
William submitted a Comment to Problem 45221. cofactor matrix Why is there a value 4.000000000000001 in the cofactor matrix of problem 4? The matrix is composed entirely of integers, so the cofactors should all be integers as well.
on 5 Dec 2019 at 19:09 
Nicolas Douillet submitted a Comment to Problem 45220. Find triangles from edge I actually realize this problem looks like a lot to my second problem, "Find a common edge" ( https://fr.mathworks.com/matlabcentral/cody/problems/45218findacommonedge ) ...
on 3 Dec 2019 at 20:49 
Nicolas Douillet submitted a Comment to Problem 45220. Find triangles from edge Info : T is actually a triangulation list of triangles, in which each index corresponding to the row index of a vertex in another list a vertices list, it is a widely used technique used to store and write triangular meshes in mesh processing. Here below the example is a tetrahedron 4 facets.
on 3 Dec 2019 at 20:35 
Andrew Ramsay submitted a Comment to Problem 769. Calculate the area of a triangle between three points Good problem
on 3 Dec 2019 at 8:19 
Nicolas Douillet submitted a Comment to Problem 45219. Find edges from a vertex Info : T is actually a triangulation list of triangles, in which each index corresponding to the row index of a vertex in another list a vertices list, it is a widely used technique used to store and write triangular meshes in mesh processing. Here below the example is a tetrahedron 4 facets.
on 3 Dec 2019 at 7:41 
Asif Newaz submitted a Comment to Problem 1639. SHIFT REGISTER the test suite answer is wrong
on 2 Dec 2019 at 20:08 
Adam Jelínek submitted a Comment to Problem 953. Pi Estimate 1 The principle is described here: https://en.wikipedia.org/wiki/Leibniz_formula_for_%CF%80
on 2 Dec 2019 at 16:15 
Martin Thomas submitted a Comment to Problem 2946. Where is she? Really, you should have a link between what directions you're looking, looking up and backwards aren't technically a pair, should really be look up/down or forward/back.
on 2 Dec 2019 at 12:33 
Nicolas Douillet submitted a Comment to Problem 45218. Find a common edge Info : T is actually a triangulation list of triangles, in which each index corresponding to the row index of a vertex in another list a vertices list, it is a widely used technique used to store and write triangular meshes in mesh processing. Here below the example is a tetrahedron 4 facets.
on 1 Dec 2019 at 18:02 
Nicolas Douillet submitted a Comment to Problem 45217. Find a common vertex Info : T is actually a triangulation list of triangles, in which each index corresponding to the row index of a vertex in another list a vertices list, it is a widely used technique used to store and write triangular meshes in mesh processing. Here below the example is a tetrahedron 4 facets.
on 1 Dec 2019 at 17:14 
JeanMarie Sainthillier submitted a Comment to Problem 42875. Assignment Problem Good problem.
How to proceed with larger matrix (where permutations are too expensive) ?
on 29 Nov 2019 at 15:20 
Asif Newaz submitted a Comment to Problem 824. Set the array elements whose value is 13 to 0 damn man!!! i just tore my head off to solve this then i figured there is a very very simple way to do that
on 25 Nov 2019 at 14:36 
nireas liapis submitted a Comment to Problem 247. Arrange Vector in descending order i comment for the challenge
on 23 Nov 2019 at 20:00 
David Verrelli submitted a Comment to Problem 44819. Relative pose in 2D: problem 1 The %% is an issue because it is so poorly documented and hence poorly understood (or even not understood). The following seems to be how it works. [Note: in the following I will use "↲" to indicate the end of a line in the code/output.]
~~~~~~~~~~
Creator writes this TEST SUITE:
~~~~~~~~~~

commandA↲
commandB↲
↲
%% test 1↲
commandX↲
↲
%% test 2↲
commandY↲

~~~~~~~~~~
Cody RUNS the following tests:
~~~~~~~~~~
Test 1: (i) commandA; (ii) commandB; and (iii) commandX.
Test 2: (i) commandA; (ii) commandB; and (iii) commandY.
~~~~~~~~~~
Cody DISPLAYS the following output:
~~~~~~~~~~

%%commandA↲
commandB↲
↲
%% test 1↲
commandX↲
↲
[output from commandX only]↲
↲
%% test 2↲
commandY↲
↲
[output from commandY only]↲
↲

~~~~~~~~~~
Notice: (i) any commands before the first %% [namely commandA and command] are run at the beginning of every test; (ii) output of any commands before the first %% is suppressed [never displayed]; (iii) for the player, a spurious "%%" is displayed on the first line of the Test Suite if there were any commands before the first "%%".
It is actually a very clever structure for Problem Creators writing a Test Suite. Therefore I'd be keen to retain it. See e.g. https://www.mathworks.com/matlabcentral/cody/problems/44655
The annoyances are: (i) lack of documentation; (ii) suppression of output; and (iii) insertion of a spurious "%%" in the display.
Although none of these three issues affect the running, they cause a lot of confusion and misunderstanding.
on 23 Nov 2019 at 2:24 
Willion Bird submitted a Comment to Problem 66. Find the twoword state names What do this problem mean ?
on 22 Nov 2019 at 6:16 
Payam Morsali submitted a Comment to Problem 801. Construct an index vector from two input vectors in vectorized fashion give me a hint, should we use a specific function here?
on 17 Nov 2019 at 17:01 
Atsushi Ueno submitted a Comment to Problem 45189. Double Factorial Neither n = 1, nor n = 0 are tested.
on 17 Nov 2019 at 16:22 
Atsushi Ueno submitted a Comment to Problem 44500. Find the starting index of a consecutive condition The test suite is not enough because it does not contain any case that the number of consecutive true bits is exactly same as n.
on 16 Nov 2019 at 9:16 
Ali submitted a Comment to Problem 23. Finding Perfect Squares Clever problem
on 15 Nov 2019 at 18:03 
Miles Walker submitted a Comment to Problem 78. Implement a ROT13 cipher Why does the "t" not change in the second word of the second test? The correct answer has an unchanged "t"?
on 15 Nov 2019 at 11:37 
Payam Morsali submitted a Comment to Problem 895. Generate N equally spaced intervals between L and L y = linspace(L,L,(N+1))
why this is not working even though it meets all the requirements in the assert?
on 14 Nov 2019 at 20:54 
hashim khan submitted a Comment to Problem 3. Find the sum of all the numbers of the input vector y=sum(x) is not working
on 14 Nov 2019 at 8:01 
Asif Newaz submitted a Comment to Problem 1567. Make a vector of prime numbers ur last test suite..4896 is too big
on 13 Nov 2019 at 21:42 
Asif Newaz submitted a Comment to Problem 114. Check to see if a Sudoku Puzzle is Solved ur test suite 6 is wrong, isn't it??
on 13 Nov 2019 at 17:44 
David Motson submitted a Comment to Problem 44951. Verify Law of Large Numbers The solution quits because it's taking too long. 1e8 is too many?
on 12 Nov 2019 at 13:32 
Kingfall submitted a Comment to Problem 44960. Rescale Scores It appears the last column of the output from the problem statement should be 3.5; 0.0; 2.0 instead of 3.5; 0.0; 3.0, but the first test suite does have it correct.
on 11 Nov 2019 at 15:47 
Pooja Lalan submitted a Comment to Problem 44958. Crop an Image Thank you Payam. I assume you meant specifying the order of the inputs explicitly. I have updated the description to make it clearer.
on 11 Nov 2019 at 15:20 
Richard Dezso Kovacs submitted a Comment to Problem 44949. Find the Best Hotels You should mention that the answer should be given as a column vector, rather than row vector.
One at this time must examine the assessment code to give the right answer, while I think it should be selfcontained in the question itself.
on 10 Nov 2019 
Fakhteh Ghalami submitted a Comment to Problem 568. Number of 1s in a binary string would you please let me know why
sum(x) creates error?
on 9 Nov 2019 
Fakhteh Ghalami submitted a Comment to Problem 174. Roll the Dice! can anyone help me why
x1 = 1 + (5)*rand(1,1);
x2 = 1 + (5)*rand(1,1);
is wrong???
on 9 Nov 2019 
Payam Morsali submitted a Comment to Problem 44958. Crop an Image you should mention which is which in this matrix Icrop = crop_image(I, 2, 2, 1, 3)
on 9 Nov 2019 
Fakhteh Ghalami submitted a Comment to Problem 3. Find the sum of all the numbers of the input vector y=sum(A)
on 8 Nov 2019 

Dan Xu submitted a Comment to Problem 1. Times 2  START HERE Great for test, like Hello world.
on 8 Nov 2019 
William submitted a Comment to Problem 44909. Reepeating numbers in array Problem #2 has a missing right bracket on y_correct.
on 6 Nov 2019 
David Motson submitted a Comment to Problem 45173. Create the flag of Ramumbia Please correct the test suite. I believe that I have submitted a correct solution
on 5 Nov 2019 
David Motson submitted a Comment to Problem 45160. Convert characters into numbers presumably this problem is incomplete? the test doesn't check anything meaningful
on 5 Nov 2019 
David Motson submitted a Comment to Problem 174. Roll the Dice! I offered a solution that should be working (works okay in Matlab) but not here: round(rand()*5+1);  not the most optimum, but still provides the correct output, yet fails the test
on 4 Nov 2019 
Asif Newaz submitted a Comment to Problem 64. The Goldbach Conjecture, Part 2 @Dima Panna 'nthprime' uses symbolic math toolbox which is not supported in cody
on 1 Nov 2019 
Simon submitted a Comment to Problem 1035. Generate a vector like 1,2,2,3,3,3,4,4,4,4 Can it be done without a for loop?
on 1 Nov 2019 
Asif Newaz submitted a Comment to Problem 1080. Guess Cipher i dont get it.help me understand
on 30 Oct 2019 
Daniel Montag submitted a Comment to Problem 953. Pi Estimate 1 The link is broken, but you can solve this problem with the Leibniz formula for π.
on 30 Oct 2019 
Gergely Patay submitted a Comment to Problem 45179. The length of the equal sides of an isoceles triangle is 'a'.For all the possible (integer) values of the remaining side,find the associated angles between the two equal sides. Why is an equilateral triangle not considered as isosceles?
on 30 Oct 2019 
Tung Nguyen submitted a Comment to Problem 659. How long is the longest prime diagonal? hard
on 29 Oct 2019 
Doan Quang Manh submitted a Comment to Problem 833. Find third Side of a right triangle given hypotenuse and a side. No *  or other functions allowed I think minus() and power() must be forbidden
on 29 Oct 2019 
Asif Newaz submitted a Comment to Problem 31. Remove all the words that end with "ain" nice problem..really nic
on 28 Oct 2019 
Nikolaos Nikolaou submitted a Comment to Problem 43667. Use a timetable to analyze a train timetable (Part 4) Peng do share the grouping method cause it eludes me :)
on 28 Oct 2019 