The first test case is wrong 0 and 21 are triangular numbers too (https://oeis.org/A000217), therefore:
[ 0, 6;
PS: And 0 does not make a pair with every number in this case.
What's wrong with the case x=20 in test suite? Why is y_correct=[ 10 10] ? I cannot pass it.
I don't know why your cheat isn't working, but look closely at what numbers your "for n=1:N" loop generates for that case.
Make a checkerboard matrix
Project Euler: Problem 4, Palindromic numbers
Project Euler: Problem 5, Smallest multiple
Rotate a Matrix by 90 degrees
Largest Twin Primes
Sleeping Queens 1
Must be in the front row...
Why the heck are they blinking!?!?
Kurchan 5x5 - Optimal Score
It's going down. We're finding simbers!
Find the treasures in MATLAB Central and discover how the community can help you!
Choose a web site to get translated content where available and see local events and offers. Based on your location, we recommend that you select: .
You can also select a web site from the following list:
Select the China site (in Chinese or English) for best site performance. Other MathWorks country sites are not optimized for visits from your location.
Contact your local office