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<?php function x($n) { for($i = 1; $i <= $n; $i++) { if ($n % $i == 0 && $i != $n) { $factors[] = $i; echo "$i "; } } array_sum($factors) == $n ? printf("Perfect") : printf("[Imperfect]"); } x(28);
Output for git.master, git.master_jit, rfc.property-hooks
1 2 4 7 14 Perfect

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