13 lines
459 B
PHP
13 lines
459 B
PHP
<?php
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$input = file('input', FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
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$input = explode(',', $input[0]);
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$minFuelCost = INF;
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foreach (range(min($input), max($input)) as $newPosition) {
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$fuelCost = array_sum(array_map(fn($currentPosition) => (abs($currentPosition - $newPosition) * (abs($currentPosition - $newPosition) + 1)) / 2, $input));
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if ($fuelCost < $minFuelCost) {
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$minFuelCost = $fuelCost;
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}
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}
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echo $minFuelCost; //91257582
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