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advent-20
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Improve performance of day 5

master
Araozu 2024-03-01 09:32:39 -05:00
parent fb5c2ab07b
commit 6b5c65a811
1 changed files with 8 additions and 8 deletions
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16
solutions/day05.go
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@ -1,21 +1,21 @@
package solutions package solutions
import ( import (
"regexp"
"slices" "slices"
"strconv" "strconv"
"strings" "strings"
) )
func seatStrToSeatId(seat string) int { func seatStrToSeatId(seat string) int {
lowRegex := regexp.MustCompile("[FL]") rowStr := seat[:7]
highRegex := regexp.MustCompile("[BR]") rowStr = strings.ReplaceAll(rowStr, "F", "0")
rowStr = strings.ReplaceAll(rowStr, "B", "1")
columnStr := seat[7:]
columnStr = strings.ReplaceAll(columnStr, "L", "0")
columnStr = strings.ReplaceAll(columnStr, "R", "1")
seatStr := lowRegex.ReplaceAllString(seat, "0") row, _ := strconv.ParseInt(rowStr, 2, 64)
seatStr = highRegex.ReplaceAllString(seatStr, "1") column, _ := strconv.ParseInt(columnStr, 2, 64)
row, _ := strconv.ParseInt(seatStr[:7], 2, 64)
column, _ := strconv.ParseInt(seatStr[7:], 2, 64)
return int(row*8 + column) return int(row*8 + column)
} }