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[ Posted by Marcelo Bonifazio ] ver depois
<?php
$photo = [
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];
$beans = 0;
// Percorre as linhas da foto
for ($i = 0; $i < sizeof($photo); $i++)
{
// Percorre as colunas da foto
for ($j = 0; $j < sizeof($photo[$i]); $j++)
{
// Encontrou um feijão
if ($photo[$i][$j] == 1)
{
// Incrementa a quantidade de feijões
$beans++;
// Atualiza a área do feijão por 2
expandBeanArea($photo, $i, $j);
}
}
}
function expandBeanArea (&$photo, $i, $j)
{
if ($i < 0 || $i >= sizeof($photo)) return;
if ($j < 0 || $j >= sizeof($photo[0])) return;
if ($photo[$i][$j] == 1)
{
$photo[$i][$j] = 2;
expandBeanArea($photo, $i-1, $j-1);
expandBeanArea($photo, $i-1, $j);
expandBeanArea($photo, $i-1, $j+1);
expandBeanArea($photo, $i, $j-1);
expandBeanArea($photo, $i, $j+1);
expandBeanArea($photo, $i+1, $j-1);
expandBeanArea($photo, $i+1, $j);
expandBeanArea($photo, $i+1, $j+1);
}
}
echo "Encontrados {$beans} feijões na foto.";
?>
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