Bart crushed my 2^33 in 284 sec with a time of 92 sec.
Omit columns averages from a matrix
Return the first and last character of a string
Rotate input square matrix 90 degrees CCW without rot90
Square Digits Number Chain Terminal Value (Inspired by Project Euler Problem 92)
Is this triangle right-angled?
Gene Sequence Contest: Retro
Cubic Integer Constrained Solution
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