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day2.php
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day2.php
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<?php
$aPackages = array('20x3x11','15x27x5','6x29x7','30x15x9','19x29x21','10x4x15','1x26x4','1x5x18','10x15x23','10x14x20','3x5x18','29x23x30','7x4x10','22x24x29','30x1x2','19x2x5','11x9x22','23x15x10','11x11x10','30x28x5','22x5x4','6x26x20','16x12x30','10x20x5','25x14x24','16x17x22','11x28x26','1x11x10','1x24x15','13x17x21','30x3x13','20x25x17','22x12x5','22x20x24','9x2x14','6x18x8','27x28x24','11x17x1','1x4x12','5x20x13','24x23x23','22x1x25','18x19x5','5x23x13','8x16x4','20x21x9','1x7x11','8x30x17','3x30x9','6x16x18','22x25x27','9x20x26','16x21x23','5x24x17','15x17x15','26x15x10','22x16x3','20x24x24','8x18x10','23x19x16','1x21x24','23x23x9','14x20x6','25x5x5','16x3x1','29x29x20','11x4x26','10x23x24','29x25x16','27x27x22','9x7x22','6x21x18','25x11x19','14x13x3','15x28x17','14x3x12','29x8x19','30x14x20','20x23x4','8x16x5','4x11x18','20x8x24','21x13x21','14x26x29','27x4x17','27x4x25','5x28x6','23x24x11','29x22x5','30x20x6','23x2x10','11x4x7','27x23x6','10x20x19','8x20x22','5x29x22','16x13x2','2x11x14','6x12x4','3x13x6','16x5x18','25x3x28','21x1x5','20x16x19','28x30x27','26x7x18','25x27x24','11x19x7','21x19x17','2x12x27','20x5x14','8x5x8','6x24x8','7x28x20','3x20x28','5x20x30','13x29x1','26x29x5','19x28x25','5x19x11','11x20x22','4x23x1','19x25x12','3x10x6','3x14x10','28x16x12','23x12x2','23x12x19','20x28x10','9x10x25','16x21x16','1x18x20','9x4x26','3x25x8','17x16x28','9x28x16','27x3x12','17x24x12','13x21x10','7x17x13','6x10x9','7x29x25','11x19x30','1x24x5','20x16x23','24x28x21','6x29x19','25x2x19','12x5x26','25x29x12','16x28x22','26x26x15','9x13x5','10x29x7','1x24x16','22x2x2','6x16x13','3x12x28','4x12x13','14x27x21','14x23x26','7x5x18','8x30x27','15x9x18','26x16x5','3x29x17','19x7x18','16x18x1','26x15x30','24x30x21','13x20x7','4x12x10','27x20x11','28x29x21','20x14x30','28x12x3','19x1x8','4x8x6','21x14x2','27x19x21','17x24x14','15x18x11','18x7x26','25x28x29','27x26x9','18x12x17','24x28x25','13x24x14','26x9x28','9x3x30','9x2x9','8x1x29','18x30x10','18x14x5','26x8x30','12x1x1','30x5x28','26x17x21','10x10x10','20x7x27','13x17x6','21x13x17','2x16x8','7x9x9','15x26x4','11x28x25','10x6x19','21x6x29','15x5x6','28x9x16','14x3x10','12x29x5','22x19x19','25x15x22','30x6x28','11x23x13','20x25x14','26x1x13','6x14x15','16x25x17','28x4x13','10x24x25','4x13x10','9x15x16','15x24x6','22x9x19','11x11x8','4x19x12','24x5x4','27x12x13','7x27x16','2x6x9','29x27x15','18x26x23','19x16x15','14x5x25','9x16x30','4x6x4','13x10x10','1x8x29','23x5x17','19x20x20','11x27x24','27x15x5','15x11x12','21x11x3','1x13x22','17x8x8','13x14x14','17x22x7','9x5x8','2x6x3','25x9x15','11x8x13','9x25x12','3x16x12','12x16x8','16x24x17','4x6x26','22x29x11','14x17x19','28x2x27','24x22x19','22x20x30','23x28x4','16x12x14','22x24x22','29x1x28','26x29x16','3x25x30','27x3x13','22x24x26','25x3x2','7x24x2','10x5x3','28x8x29','25x6x4','12x17x14','24x3x5','23x27x7','26x23x30','11x10x19','23x7x11','26x14x15','14x3x25','12x24x14','2x14x12','9x12x16','9x2x28','3x8x2','22x6x9','2x30x2','25x1x9','20x11x2','14x11x12','7x14x12','24x8x26','13x21x23','18x17x23','13x6x17','20x20x19','13x17x29','7x24x24','23x8x6','19x10x28','3x8x21','15x20x18','11x27x1','11x24x28','13x20x11','18x19x22','27x22x12','28x3x2','13x4x29','26x5x6','14x29x25','7x4x7','5x17x7','2x8x1','22x30x24','22x21x28','1x28x13','11x20x4','25x29x19','9x23x4','30x6x11','25x18x10','28x10x24','3x5x20','19x28x10','27x19x2','26x20x4','19x21x6','2x12x30','8x26x27','11x27x10','14x13x17','4x3x21','2x20x21','22x30x3','2x23x2','3x16x12','22x28x22','3x23x29','8x25x15','9x30x4','10x11x1','24x8x20','10x7x27','7x22x4','27x13x17','5x28x5','30x15x13','10x8x17','8x21x5','8x17x26','25x16x4','9x7x25','13x11x20','6x30x9','15x14x12','30x1x23','5x20x24','22x7x6','26x11x23','29x7x5','13x24x28','22x20x10','18x3x1','15x19x23','28x28x20','7x26x2','9x12x20','15x4x6','1x17x21','3x22x17','9x4x20','25x19x5','9x11x22','14x1x17','14x5x16','30x5x18','19x6x12','28x16x22','13x4x25','29x23x18','1x27x3','12x14x4','10x25x19','15x19x30','11x30x4','11x22x26','13x25x2','17x13x27','11x30x24','15x1x14','17x18x4','26x11x3','16x22x28','13x20x9','1x18x3','25x11x12','20x21x1','22x27x4','8x28x23','7x13x27','17x9x26','27x27x20','11x20x12','26x21x11','29x14x12','27x25x1','28x29x25','21x23x28','5x18x18','19x5x4','7x6x30','27x8x11','12x24x12','16x25x22','26x11x29','25x22x17','15x23x23','17x9x6','30x10x16','21x3x5','18x27x2','28x21x14','16x18x17','4x18x2','9x1x14','9x1x9','5x27x12','8x16x30','3x19x19','16x26x24','1x6x9','15x14x3','11x7x19','8x19x3','17x26x26','6x18x11','19x12x4','29x20x16','20x17x23','6x6x5','20x30x19','18x25x18','2x26x2','3x1x1','14x25x18','3x1x6','11x14x18','17x23x27','25x29x9','6x25x20','20x10x9','17x5x18','29x14x8','14x25x26','10x15x29','23x19x11','22x2x2','4x5x5','13x23x25','19x13x19','20x18x6','30x7x28','26x18x17','29x18x10','30x29x1','12x26x24','18x17x26','29x28x15','3x12x20','24x10x8','30x15x6','28x23x15','14x28x11','10x27x19','14x8x21','24x1x23','1x3x27','6x15x6','8x25x26','13x10x25','6x9x8','10x29x29','26x23x5','14x24x1','25x6x22','17x11x18','1x27x26','18x25x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x9x18','23x26x6','22x9x29','17x6x21','28x28x29','19x25x26','9x27x21','5x26x8','11x19x1','10x1x18','29x4x8','21x2x22','14x12x8');
$sqft = 0;
$lft = 0;
// part 1
foreach($aPackages as $package) {
$aDimensions = explode('x', $package);
sort($aDimensions);
list($w, $l, $h) = $aDimensions;
$sqft += (2 * $w * $l) + (2 * $w * $h) + (2 * $l * $h) + ($w * $l);
}
echo $sqft;
// part 2
foreach($aPackages as $package) {
$aDimensions = explode('x', $package);
sort($aDimensions);
list($w, $l, $h) = $aDimensions;
$lft += $w + $w + $l + $l + ($w*$l*$h);
}
echo $lft;