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.
Roll the Dice!
Find best placement for ordered dominoes (harder)
Split a string into chunks of specified length
Given a 4x4 matrix, swap the two middle columns
Oh Zero Zero Zero!!!
Rolling maximums above a threshold
High Precision Square Root (Inspired by Project Euler 80)
Kurchan 5x5 - Optimal Score
Points on a Sphere
A (wrong) place for everything, and everything in its (wrong) place
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