Find first missing positive: Difference between revisions

=={{header|Arturo}}==

<syntaxhighlight lang="arturo">sets: @[[1 2 0] @[3 4 neg 1 1] [7 8 9 11 12]]

loop sets 's ->

print [

"Set:" s

"-> First missing positive integer:" first select.first 1..∞ 'x -> not? in? x s

]</syntaxhighlight>

{{out}}

<pre>Set: [1 2 0] -> First missing positive integer: 3

Set: [3 4 -1 1] -> First missing positive integer: 2

Set: [7 8 9 11 12] -> First missing positive integer: 1</pre>