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<?php function isQuadtree($bits, &$i){ $i++; if ($i >= strlen($bits)) return false; if ($bits[$i] === "1") { isQuadtree($bits, $i); isQuadtree($bits, $i); isQuadtree($bits, $i); return isQuadtree($bits, $i); } return true; } var_dump(isQuadtree("110000"));
Output for git.master_jit, git.master
Fatal error: Uncaught ArgumentCountError: Too few arguments to function isQuadtree(), 1 passed in /in/4eMBP on line 15 and exactly 2 expected in /in/4eMBP:3 Stack trace: #0 /in/4eMBP(15): isQuadtree('110000') #1 {main} thrown in /in/4eMBP on line 3
Process exited with code 255.

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