8000 Day2 · FailedCode/adventofcode-2022-php@a73c46e · GitHub
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‎src/Days/Day2.php

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<?php
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namespace Failedcode\Aoc2022\Days;
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class Day2 extends AbstractDay
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{
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public function solve_part_1(): string
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{
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$scoresPlay = [
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'X' => 1,
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'Y' => 2,
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'Z' => 3,
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];
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$scoresOutcome = [
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'loss' => 0,
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'draw' => 3,
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'win' => 6,
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];
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$outcomes = [
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"A X" => "draw",
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"B Y" => "draw",
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"C Z" => "draw",
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"A Y" => "win",
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"B Z" => "win",
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"C X" => "win",
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"A Z" => "loss",
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"B X" => "loss",
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"C Y" => "loss",
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];
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$points = 0;
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$list = $this->util->loadInput(2);
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foreach ($list as $row) {
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if (empty($row)) {
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continue;
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}
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list($enemyMove, $myMove) = explode(' ', $row, 2);
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$outcome = $outcomes[$row];
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$points += $scoresOutcome[$outcome];
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$points += $scoresPlay[$myMove];
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}
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return $points;
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}
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public function solve_part_2(): string
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{
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$scoresPlay = [
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'A' => 1,
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'B' => 2,
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'C' => 3,
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];
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$scoresOutcome = [
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'X' => 0,
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'Y' => 3,
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'Z' => 6,
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];
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$moves = [
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"A X" => "C",
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"A Y" => "A",
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"A Z" => "B",
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"B X" => "A",
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"B Y" => "B",
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"B Z" => "C",
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"C X" => "B",
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"C Y" => "C",
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"C Z" => "A",
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];
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$points = 0;
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$list = $this->util->loadInput(2);
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foreach ($list as $row) {
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if (empty($row)) {
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continue;
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}
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list($enemyMove, $outcome) = explode(' ', $row, 2);
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$myMove = $moves[$row];
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$points += $scoresOutcome[$outcome];
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$points += $scoresPlay[$myMove];
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}
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return $points;
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}
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}

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