Given a natural number reorder its digits to create another number, closest to the given one.
Remove any row in which a NaN appears
Count from 0 to N^M in base N.
Project Euler: Problem 3, Largest prime factor
Project Euler: Problem 9, Pythagorean numbers
Maximum value in a matrix
Cut an orange
Don't Try, give up and return NaN.
Best Problem Elections
Alternative Scoring. Create an incremental spiral.
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