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The challenge involves mathematics. Also consider using more specific tags: [number] [number-theory] [arithmetic] [combinatorics] [graph-theory] [geometry] [abstract-algebra].

0
votes
PHP, 142 bytes list(,$a,$b)=$argv;for($n=$a;$n<=$a*$b;$n+=$a)if($n%$b==0)break;while($i<$n)echo++$i%$a==0?'|':'-';echo" ";while($j<$n)echo++$j%$b==0?'|':'-'; Try it online !
answered Sep 26 '17 by roberto06
6
votes
PHP - 397 372 349 344 329 bytes Inspired by TomDevs's JS solution Saved 25 bytes by replacing $a=[...] by $a=explode(...) Saved another 23 bytes by switching back to an array without string delimit …
answered Jan 31 '17 by roberto06