public function execute($stdin)
{
$meter = new Meter();
$i = 0;
for ($i = 0; $i < strlen($stdin) - 1; $i++) {
$route = substr($stdin, $i, 2);
$meter->add($route);
}
return $meter->payoff();
}
/**
* @test
* @group meter-test1
**/
public function test1()
{
$meter = new Meter();
$meter->add('AD');
$this->assertEquals($meter->payoff(), 400);
$meter->add('DF');
$this->assertEquals($meter->payoff(), 450);
$meter->add('FC');
$this->assertEquals($meter->payoff(), 510);
}
