Submission #1433194

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Source Code Expand

<?php
$N = trim(fgets(STDIN));
$s = trim(fgets(STDIN));
$t = trim(fgets(STDIN));
$index = 200;
for($i = 0; $i < $N; $i++) {
  $s1 = substr($s, $i, $N - $i);
  $s2 = substr($t, 0, $N - $i);
  if($s1 == $s2) {
    $index = $i;
    break;
  }
}
if($index == 200) $index = $N;
print($N + $index);
?>

Submission Info

Judge Result