63 lines
1.3 KiB
Go
63 lines
1.3 KiB
Go
package daytwo
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import (
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"advent-of-code/internal/registry"
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"os"
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"strings"
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)
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func init() {
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registry.Register("2022D2", ParseInput, PartOne, PartTwo)
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}
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func ParseInput(filepath string) []string {
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content, _ := os.ReadFile(filepath)
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return strings.Split(strings.Trim(string(content), "\n"), "\n")
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}
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func PartOne(data []string) int {
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totalScore := 0
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for _, line := range data {
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opponent := line[0]
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me := line[2]
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shapeScore := int(me - 'X' + 1)
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var outcomeScore int
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if (opponent == 'A' && me == 'Y') || (opponent == 'B' && me == 'Z') || (opponent == 'C' && me == 'X') {
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outcomeScore = 6
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} else if (opponent == 'A' && me == 'X') || (opponent == 'B' && me == 'Y') || (opponent == 'C' && me == 'Z') {
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outcomeScore = 3
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} else {
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outcomeScore = 0
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}
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totalScore += shapeScore + outcomeScore
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}
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return totalScore
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}
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func PartTwo(data []string) int {
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totalScore := 0
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for _, line := range data {
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opponent := line[0]
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outcome := line[2]
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var me byte
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switch outcome {
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case 'Y':
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me = 'X' + (opponent - 'A')
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case 'Z':
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me = 'X' + ((opponent-'A')+1)%3
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default:
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me = 'X' + ((opponent-'A')+2)%3
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}
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shapeScore := int(me - 'X' + 1)
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outcomeScore := int(outcome-'X') * 3
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totalScore += shapeScore + outcomeScore
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}
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return totalScore
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}
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