Test problem 21 is faulty.
It has been updated.
Test suite has crashed again plz fix
@ Nikolaos: are you sure it's the test suite and not a server error? If you get the following message, it is due to a temporary server problem, not a specific problem: "While evaluating the solution, the server encountered an error caused by temporary unavailability of MATLAB Service. Wait a few minutes for the MATLAB Service to return, and then rescore." If you are getting this error, simply try the problem again later or on a different day.
Find the longest sequence of 1's in a binary sequence.
Make a Palindrome Number
Back to basics 14 - Keywords
Are all the three given point in the same line?
Lights Out 5 - 5x5, 10 moves
Divisible by n, prime vs. composite divisors
5 Prime Numbers
Divisible by 8
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