Submission #931421

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Source Code Expand

<?php
error_reporting(0);
$stdin = file_get_contents('php://stdin');
$line = explode("\n",$stdin);
$fi = 0;
$cnt = 0;
$list = array();
$key = new stdclass();
foreach($line as $l) {
  if (strlen($l)==0) continue;
  if ($fi == 0) {
    $a = explode(" ",$l);
    $key->A = $a;
    $fi++;
    continue;
  }
  if ($fi > 0) {
    break;
    $a = explode(" ",$l);
    $key->A[] = $a[0];
  }
}
printf("%d\n",count(array_unique($key->A)));

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