40 lines
770 B
PHP
40 lines
770 B
PHP
<?php
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$rounds = explode("\n", file_get_contents('./input.txt'));
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$total_score = 0;
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$types = [
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'A' => 'rock',
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'X' => 'rock',
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'B' => 'paper',
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'Y' => 'paper',
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'C' => 'scissor',
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'Z' => 'scissor',
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];
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$shapes = [
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'rock' => 1,
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'paper' => 2,
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'scissor' => 3,
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];
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foreach ($rounds as $round) {
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[$opponent, $you] = explode(' ', $round);
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$opponent = $types[$opponent];
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$you = $types[$you];
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if ($you === $opponent) {
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$total_score += 3;
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} elseif (
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($opponent === 'rock' && $you === 'paper') ||
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($opponent === 'paper' && $you === 'scissor') ||
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($opponent === 'scissor' && $you === 'rock')
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) {
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$total_score += 6;
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}
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$total_score += $shapes[$you];
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}
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echo $total_score; |