<?php function abominable_is_leap_year($year) { if ($year % 4 == 0) goto verify; goto no; verify: if ($year % 100 != 0) goto yes; if ($year % 400 == 0) goto yes; no: return false; yes: return true; } foreach (range(0, 2020) as $year) printf("%d: %s\n", $year, abominable_is_leap_year($year) ? "yes" : "no"); ?>
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