Please return the smallest positive number.
This is a little silly problem, but the solution has some funny properties...
Back to basics 9 - Indexed References
Find best placement for ordered dominoes (harder)
Return unique values without sorting
Given a 4x4 matrix, swap the two middle columns
Alternative Scoring. Create an incremental spiral.
Packing oranges - one layer
Optimum Egyptian Fractions
Cut an orange
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