Status: IN
The `min(a,b)*10 + max(a,b)` formula in `smallest_number_with_at_least_one_digit_from_each_array` assumes digits are 1-9; a zero in either array would produce an incorrect single-digit result instead of a two-digit number.
Source: entries/2026/06/06/form-smallest-number-from-two-digit-arrays-solution.md