"...return a positive integer, y, which is the xth term ..." in de description.
I have a single line of code in my solution -- how is yours so small!?!
Make one big string out of two smaller strings
Find the nearest integer
Calculate the Number of Sign Changes in a Row Vector (No Element Is Zero)
Find the sum of n squares
Sorting integers by their digits (Level 1)
Identify the sequence
Increasing sub-sequence (Level 2)
Segmented number sequence
Sorting integers by their digits (Level 4)
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