You're *very* close with this one. Remember that r is input as a double, not a string.
Back and Forth Rows
Clean the List of Names
Mirror Image matrix across anti-diagonal
The Top 5 Primes
Expand 10^n to Powers of 4
Sleeping Queens 1
Decimation - Optimized for speed
Singularity v5 (with apologies to the true hack masters)
Community Problem 500!
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