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<?php $rng1step = 3; $rng2step = 2; $max = 1000; $find = 553; $rng = range(1,$max); $i = 1; $range2=[]; While(count($rng)){ If($i){ $range1= array_merge($range1, array_splice($rng, 0, $rng1step)); $i = 0; }Else{ $range2= array_merge($range2, array_splice($rng, 0, $rng2step)); $i = 1; } } If(in_array($range1, $find)) echo "range1";

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57.38 ms | 402 KiB | 5 Q