Test case x=[11 22 132] will cause some solutions here to fail.
Great catch! Test case added; and by "some solutions" you mean "All solutions except yours and mine."
Well done, Tim. I noticed the bug of my solution, but it did work for the old test suit, and I was too lazy to fix the bug.
Number of 1s in a binary string
intersection of matrices
Generalised Hamming Number
Binary code (array)
It's Happy! It's Fun! It's Happy Fun Hyperball!
Sums of Multiple Pairs of Triangular Numbers
With apologies to William Blake
Two fractions, one sum
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