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@ 2025-12-18T13:10:20Z

<?php

function isQuadtree($bits, &$i = 0){
 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
Performance
VLD
References
Branches

var_dump: documentation ( source)

preferences:dark modelive previewkey bindings

32.04 ms | 404 KiB | 5 Q