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<?php function ackermann($n, $m) { if ($n == 0) { return 1 + $m; } if ($m == 0) { return ackermann($n - 1, 1); } return ackermann($n - 1, ackermann($n, $m - 1)); } echo ackermann(3, 3);
Output for git.master, git.master_jit, rfc.property-hooks
61

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