<?php
function floorDiff(string $input): int {
$positiveMatches = preg_match_all ('/\(/', $input);
$negativeMatches = preg_match_all ('/\)/', $input);
return $positiveMatches - $negativeMatches;
}
assert(floorDiff('(') === 1);
assert(floorDiff(')') === -1);
assert(floorDiff('()') === 0);
assert(floorDiff('(()))))') === -3);
var_dump (floorDiff('(()))))') );
- Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
- int(-3)
- Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
- Parse error: syntax error, unexpected ':', expecting '{' in /in/jT2gE on line 3
Process exited with code 255.
preferences:
153.73 ms | 402 KiB | 183 Q