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.
Back to basics 10 - Max Float
Getting the indices from a matrice
Insert zeros into vector
Should Mr McNugget even get out of bed today?
With apologies to William Blake
Tick. Tock. Tick. Tock. Tick. Tock. Tick. Tock. Tick. Tock.
Pseudo Square Root (Inspired by Project Euler 266)
If you prick us, do we not bleed?
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