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beautiful-pairs.php
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beautiful-pairs.php
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<?php
/*
* Complete the 'beautifulPairs' function below.
*
* The function is expected to return an INTEGER.
* The function accepts following parameters:
* 1. INTEGER_ARRAY A
* 2. INTEGER_ARRAY B
*/
function beautifulPairs($A, $B) {
$countsA = [];
foreach ($A as $a) {
@$countsA[$a]++;
}
$countsB = [];
foreach ($B as $b) {
@$countsB[$b]++;
}
$result = 0;
foreach ($countsA as $num => $value) {
if (isset($countsB[$num])) {
if ($countsB[$num] == $value) {
$result += $value;
continue;
}
$result += $countsB[$num] > $value ? $value : $countsB[$num];
}
}
return $result + ($result == count($A) ? -1 : 1);
}
$fptr = fopen(getenv("OUTPUT_PATH"), "w");
$n = intval(trim(fgets(STDIN)));
$A_temp = rtrim(fgets(STDIN));
$A = array_map('intval', preg_split('/ /', $A_temp, -1, PREG_SPLIT_NO_EMPTY));
$B_temp = rtrim(fgets(STDIN));
$B = array_map('intval', preg_split('/ /', $B_temp, -1, PREG_SPLIT_NO_EMPTY));
$result = beautifulPairs($A, $B);
fwrite($fptr, $result . "\n");
fclose($fptr);