Project Euler Problem 18

by michiganfootball20

JavaScript

<html>
<head>
<title>Online PHP Script Execution</title>
</head>
<body>
<?php
   $input = file("input.txt");
   
   for($i = count($input)-1; $i >= 0; $i--)
   {
    $number_array[] = explode(" ", $input[$i]);
   }
   
   for($i = 1; $i < count($number_array); $i++)
   {
     for($j = 0; $j < count($number_array[$i]); $j++)
     {
       $number_array[$i][$j] += max($number_array[$i-1][$j], $number_array[$i-1][$j+1]);
       echo $number_array[$i][$j] . ' ';
     }
     echo '<br>';
   }
?>
</body>
</html>