alan/adventofcode
2
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

day02

Browse Source
This commit is contained in:
Alan R Evans
2023-12-01 09:12:24 +00:00
parent 87786ac5b1
commit e7cd9346f2
5 changed files with 251 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
2023/go/day01/day01.go
View File

@@ -23,7 +23,6 @@ func Part1(input string) int {
}
}
return num
}

119
2023/go/day02/day02.go Normal file
View File

@@ -0,0 +1,119 @@
package day02
import (
"fmt"
"regexp"
_ "strconv"
"strings"
"adventofcode2023/utils"
)
type Set struct {
Red int
Blue int
Green int
}
type Game struct {
ID int
Sets []Set
}
func Part1(input string) int {
sum := 0
games := []Game{}
lines := strings.Split(input, "\n")
for _, line := range lines {
game, err := parseGame(line)
if err != nil {
fmt.Println("Error:", err)
return -1
}
// Print the parsed Game struct
fmt.Printf("Parsed Game: %+v\n", game)
games = append(games, game)
}
for _, game := range games {
result := true
for _, set := range game.Sets {
if set.Red > 12 || set.Green > 13 || set.Blue > 14 {
result = false
}
}
if result == true {
sum += game.ID
}
}
return sum
}
func Part2(input string) int {
sum := 0
games := []Game{}
lines := strings.Split(input, "\n")
for _, line := range lines {
game, err := parseGame(line)
if err != nil {
fmt.Println("Error:", err)
return -1
}
// Print the parsed Game struct
fmt.Printf("Parsed Game: %+v\n", game)
games = append(games, game)
}
for _, game := range games {
maxRed := 0
maxBlue := 0
maxGreen := 0
for _, set := range game.Sets {
if set.Red > maxRed {
maxRed = set.Red
}
if set.Blue > maxBlue {
maxBlue = set.Blue
}
if set.Green > maxGreen {
maxGreen = set.Green
}
}
sum += maxRed * maxBlue * maxGreen
}
return sum
}
func parseGame(input string) (Game, error) {
var game Game
// Extract ID
reID := regexp.MustCompile(`Game (\d+):(.*)`)
matchID := reID.FindStringSubmatch(input)
if len(matchID) != 3 {
return game, fmt.Errorf("unable to extract game ID")
}
game.ID = utils.MustAtoi(matchID[1])
setsString := strings.Split(matchID[2], ";")
for _, setString := range setsString {
var set Set
// Extract colors and quantities
reColors := regexp.MustCompile(`(\d+) (\w+)`)
matches := reColors.FindAllStringSubmatch(setString, -1)
for _, match := range matches {
color := strings.ToLower(match[2])
switch color {
case "red":
set.Red = utils.MustAtoi(match[1])
case "blue":
set.Blue = utils.MustAtoi(match[1])
case "green":
set.Green = utils.MustAtoi(match[1])
default:
return game, fmt.Errorf("unknown color: %s", color)
}
}
game.Sets = append(game.Sets, set)
}
return game, nil
}

27
2023/go/day02/day02_test.go Normal file
View File

@@ -0,0 +1,27 @@
package day02
import (
"testing"
"github.com/stretchr/testify/require"
)
func TestPart1(t *testing.T) {
r := Part1(
`Game 1: 3 blue, 4 red; 1 red, 2 green, 6 blue; 2 green
Game 2: 1 blue, 2 green; 3 green, 4 blue, 1 red; 1 green, 1 blue
Game 3: 8 green, 6 blue, 20 red; 5 blue, 4 red, 13 green; 5 green, 1 red
Game 4: 1 green, 3 red, 6 blue; 3 green, 6 red; 3 green, 15 blue, 14 red
Game 5: 6 red, 1 blue, 3 green; 2 blue, 1 red, 2 green`)
require.Equal(t, 8, r)
}
func TestPart2(t *testing.T) {
r := Part2(
`Game 1: 3 blue, 4 red; 1 red, 2 green, 6 blue; 2 green
Game 2: 1 blue, 2 green; 3 green, 4 blue, 1 red; 1 green, 1 blue
Game 3: 8 green, 6 blue, 20 red; 5 blue, 4 red, 13 green; 5 green, 1 red
Game 4: 1 green, 3 red, 6 blue; 3 green, 6 red; 3 green, 15 blue, 14 red
Game 5: 6 red, 1 blue, 3 green; 2 blue, 1 red, 2 green`)
require.Equal(t, 2286, r)
}

100
2023/go/day02/input.txt Normal file
View File

@@ -0,0 +1,100 @@
Game 1: 7 red, 8 blue; 6 blue, 6 red, 2 green; 2 red, 6 green, 8 blue; 9 green, 2 red, 4 blue; 6 blue, 4 green
Game 2: 2 green, 8 blue, 9 red; 5 blue, 11 red; 5 blue, 3 green, 4 red; 7 blue, 8 red; 5 red, 3 green, 3 blue; 1 red, 5 blue, 2 green
Game 3: 4 red, 8 green, 2 blue; 6 green, 2 red, 2 blue; 12 red, 12 green, 2 blue; 10 green, 6 red
Game 4: 12 red, 3 green; 1 green, 2 blue, 2 red; 16 red, 4 green; 14 red, 3 green; 2 blue, 5 red; 11 red, 4 green
Game 5: 19 red, 1 green; 7 red, 1 green, 1 blue; 7 red; 13 red, 2 green
Game 6: 8 green, 2 blue, 2 red; 1 red, 7 green; 6 green, 8 blue, 3 red; 14 green, 2 red, 9 blue; 13 green; 10 blue, 2 red, 4 green
Game 7: 2 red, 7 green; 9 red, 5 blue, 18 green; 16 blue, 10 green, 6 red; 13 blue, 12 green, 6 red; 19 blue, 12 red, 11 green
Game 8: 5 blue, 3 red, 1 green; 8 red, 1 blue, 3 green; 8 green, 9 blue, 8 red; 5 blue, 11 green, 3 red; 2 red, 3 blue, 1 green; 3 green, 7 red
Game 9: 3 red, 3 blue; 7 green, 9 blue, 14 red; 12 blue, 9 green, 3 red
Game 10: 6 blue, 1 green, 1 red; 17 red, 8 blue, 1 green; 4 blue, 10 red
Game 11: 2 green, 1 blue, 8 red; 14 red, 5 blue, 10 green; 14 blue, 6 red, 9 green; 7 red, 1 blue, 1 green
Game 12: 16 green, 1 blue; 1 green, 4 blue; 1 red, 2 blue, 16 green; 17 green, 3 blue; 14 green, 4 blue, 3 red; 7 green, 8 blue
Game 13: 13 red, 10 blue, 19 green; 2 blue, 12 red, 8 green; 8 blue, 11 red, 13 green
Game 14: 16 red, 7 blue, 7 green; 8 green, 10 red, 6 blue; 6 blue, 11 red, 4 green
Game 15: 6 red, 10 blue, 2 green; 10 red, 1 blue, 1 green; 5 blue, 3 red, 2 green; 16 blue, 10 red, 2 green; 13 blue
Game 16: 8 green, 10 red, 1 blue; 6 red, 9 green, 12 blue; 7 blue, 3 green, 1 red; 5 red, 6 blue, 3 green; 1 blue, 6 green, 8 red; 6 green, 8 red
Game 17: 4 green, 4 blue; 2 green, 2 red; 1 red, 8 green, 7 blue
Game 18: 6 blue, 8 green, 9 red; 4 green, 3 blue, 8 red; 8 blue, 12 red, 2 green; 4 blue, 8 red, 2 green
Game 19: 12 blue, 3 green; 2 blue, 2 green, 4 red; 3 green, 6 red, 14 blue; 3 green, 1 red, 17 blue; 10 green, 10 red, 1 blue; 8 green, 8 blue, 4 red
Game 20: 4 green, 3 blue, 1 red; 9 red, 14 blue, 9 green; 1 blue, 17 red, 2 green; 8 red, 13 blue, 8 green; 7 red, 2 green, 20 blue; 6 green, 13 red, 5 blue
Game 21: 7 red, 1 blue; 1 blue, 5 red, 4 green; 5 green, 5 red; 7 red, 2 green; 4 green, 2 red, 1 blue
Game 22: 6 red, 8 green, 18 blue; 2 green, 7 blue, 2 red; 18 blue, 8 green, 1 red; 10 red, 7 green, 20 blue; 5 blue, 10 green, 4 red
Game 23: 2 green, 2 red, 15 blue; 2 red, 6 green, 4 blue; 8 red, 5 green
Game 24: 9 blue, 7 green; 3 green, 9 blue, 1 red; 2 red, 6 blue; 3 green, 11 blue, 4 red
Game 25: 2 green, 3 red, 5 blue; 2 red, 5 green; 3 red, 2 blue, 5 green; 1 blue, 4 green, 3 red
Game 26: 1 green, 7 red; 6 green, 2 blue, 7 red; 11 green, 3 blue, 1 red; 6 red, 5 blue; 1 blue, 5 green; 8 green
Game 27: 2 green, 10 red, 3 blue; 5 red, 5 green; 2 green, 4 blue, 10 red; 4 red, 1 blue; 3 green, 3 blue, 2 red; 8 blue, 2 green
Game 28: 9 red, 7 blue; 6 blue, 11 red; 10 red, 10 blue, 3 green
Game 29: 15 blue, 10 green, 1 red; 1 blue, 10 green; 2 red, 19 green, 14 blue; 4 blue, 18 green, 7 red; 8 blue, 10 green, 5 red
Game 30: 7 blue, 3 green, 2 red; 12 blue, 5 green; 1 red, 5 green, 5 blue
Game 31: 6 green, 5 red; 7 red, 7 green, 5 blue; 2 red, 7 blue, 7 green; 2 red, 8 blue, 7 green
Game 32: 9 red, 2 green, 2 blue; 3 blue, 7 green, 3 red; 2 blue, 1 red
Game 33: 13 blue, 7 red, 1 green; 5 red, 17 blue, 1 green; 2 green, 14 red, 19 blue; 2 blue, 1 red; 13 blue, 8 red; 3 blue, 15 red
Game 34: 3 blue, 4 red, 1 green; 7 green, 2 blue; 17 green, 1 red; 7 green, 3 blue; 2 red, 1 green; 2 blue, 1 green, 2 red
Game 35: 5 red, 2 green, 4 blue; 5 blue; 2 blue, 4 green, 4 red; 8 green, 1 blue, 5 red; 3 green, 3 blue, 5 red
Game 36: 4 blue, 4 red, 4 green; 8 red, 8 blue, 4 green; 3 green, 9 red, 5 blue; 1 red, 4 green, 13 blue; 7 blue, 9 green, 9 red; 13 blue, 8 red
Game 37: 6 green, 10 red, 5 blue; 5 red, 9 green, 2 blue; 4 red, 4 blue, 1 green; 12 green, 3 red, 2 blue; 4 red, 11 green, 1 blue
Game 38: 3 red; 1 blue, 3 red; 2 red, 2 green; 2 blue, 3 green; 4 green, 2 blue, 2 red; 3 red, 2 blue
Game 39: 6 red, 4 blue, 9 green; 17 blue, 2 green, 3 red; 5 red, 15 green, 12 blue; 3 red, 5 green, 8 blue
Game 40: 20 red, 10 blue, 8 green; 7 red, 3 green, 10 blue; 14 green, 8 blue, 14 red; 4 red, 9 blue, 8 green; 11 red, 4 blue, 8 green
Game 41: 2 blue; 4 red, 2 blue, 2 green; 5 green, 9 red, 3 blue; 8 red, 4 green
Game 42: 3 red, 13 blue; 2 blue, 1 green; 6 green, 16 blue, 10 red
Game 43: 9 red, 1 green; 1 green, 7 blue, 8 red; 8 blue, 2 green, 5 red
Game 44: 15 blue, 5 green; 5 green, 1 red, 6 blue; 1 red, 4 blue
Game 45: 3 green; 2 blue, 1 green; 4 green, 4 blue; 1 red, 5 blue, 11 green
Game 46: 20 green, 10 blue, 10 red; 4 red, 13 green, 1 blue; 2 red, 2 green, 10 blue
Game 47: 5 blue, 2 red, 3 green; 5 blue, 2 red, 1 green; 2 green, 3 red, 5 blue; 1 red, 4 green, 4 blue; 2 blue
Game 48: 2 red, 10 blue, 1 green; 6 blue, 6 green, 6 red; 11 blue, 7 red, 5 green; 1 red, 6 green, 14 blue; 1 green, 9 blue, 3 red
Game 49: 3 blue, 16 green, 6 red; 14 red, 3 green, 5 blue; 12 green, 6 red, 4 blue; 4 red, 6 blue, 15 green; 6 green, 11 blue, 9 red
Game 50: 1 green, 7 red, 2 blue; 3 green, 2 blue, 5 red; 4 red, 2 blue, 4 green
Game 51: 3 green, 7 red; 2 red, 4 green, 2 blue; 10 green, 3 blue, 6 red; 1 blue, 11 green; 1 green, 3 blue; 2 blue, 7 green
Game 52: 2 green, 1 blue, 2 red; 7 red, 3 green; 2 blue, 8 green; 1 blue, 13 green, 6 red
Game 53: 7 red, 2 green; 1 blue, 16 red, 7 green; 12 red, 7 green; 1 blue, 11 red, 5 green
Game 54: 1 green, 1 blue, 16 red; 4 blue, 1 green, 6 red; 4 red, 1 blue, 3 green; 1 green, 4 red, 4 blue; 1 red, 2 green
Game 55: 2 blue, 2 green, 5 red; 1 blue, 4 red, 5 green; 2 blue, 2 green, 6 red; 2 blue, 5 red, 6 green; 6 green, 1 red
Game 56: 3 red, 14 green, 14 blue; 7 green, 14 red, 13 blue; 12 red, 13 blue, 6 green
Game 57: 6 red, 11 green, 5 blue; 6 blue, 2 green, 4 red; 4 red, 6 green; 4 green, 1 red, 2 blue; 1 green, 5 blue
Game 58: 8 red, 6 green, 10 blue; 8 blue, 9 red; 1 red, 12 blue, 1 green; 5 green, 3 blue, 8 red; 9 blue, 2 green, 4 red
Game 59: 11 green, 1 red; 5 red, 10 blue, 12 green; 6 red, 6 blue, 2 green; 1 blue, 10 green, 4 red; 8 green, 11 blue; 6 blue, 1 red, 11 green
Game 60: 16 green, 14 red, 1 blue; 2 blue, 8 green; 14 green; 1 green, 11 red, 2 blue; 1 blue, 11 green
Game 61: 11 blue, 3 green, 1 red; 9 red, 18 green; 7 red, 15 green, 5 blue; 19 blue, 2 green
Game 62: 2 green, 2 blue; 1 green, 3 red; 1 blue, 4 red, 8 green; 2 blue, 11 green; 5 red, 9 green; 7 green, 1 blue, 8 red
Game 63: 14 blue, 6 red, 5 green; 3 blue, 10 red; 8 blue, 1 green, 8 red; 9 blue, 14 red, 4 green
Game 64: 8 blue, 3 green, 1 red; 1 green, 13 blue; 4 green, 15 blue, 1 red; 9 blue, 3 green
Game 65: 5 red, 5 green, 3 blue; 7 red, 2 blue, 1 green; 2 blue, 7 red, 2 green; 6 green, 12 red, 2 blue
Game 66: 9 blue, 1 green, 1 red; 8 blue, 2 red, 2 green; 1 red, 1 green; 2 green, 1 red, 5 blue; 14 blue, 2 red; 2 red, 13 blue, 2 green
Game 67: 7 green, 2 blue, 3 red; 16 red, 15 blue, 4 green; 6 green, 3 blue, 1 red; 1 red, 5 green, 9 blue
Game 68: 11 blue, 4 red; 6 red, 1 blue; 1 green, 8 red, 11 blue; 10 blue, 7 red; 7 blue, 2 red; 9 blue, 1 green, 11 red
Game 69: 9 red, 8 green, 6 blue; 2 blue, 3 red; 4 green, 9 blue, 9 red; 3 blue, 5 green, 5 red; 1 green, 7 red, 5 blue; 1 blue, 3 green, 9 red
Game 70: 5 blue, 1 green, 3 red; 1 red, 5 green, 3 blue; 4 green, 3 blue; 2 green, 8 blue; 10 blue, 12 green
Game 71: 1 green, 5 blue, 14 red; 6 red, 2 green, 5 blue; 7 blue, 5 green, 2 red; 2 green, 2 red, 1 blue; 6 red, 5 green; 6 red
Game 72: 12 red, 6 green; 11 red, 2 green; 3 green, 1 red; 14 red, 5 green, 1 blue
Game 73: 3 green, 3 red; 4 green, 4 red, 5 blue; 2 red, 5 blue, 2 green; 4 green, 8 red, 6 blue
Game 74: 12 red, 1 blue; 3 blue, 17 red, 1 green; 5 red, 1 blue
Game 75: 14 green, 1 red; 3 green, 5 red, 16 blue; 10 blue, 20 green, 5 red
Game 76: 4 green, 9 blue, 12 red; 4 blue, 6 red, 3 green; 10 red, 8 green, 1 blue; 9 red, 6 green, 1 blue; 8 blue, 1 green, 6 red; 8 blue, 3 red
Game 77: 7 red, 12 blue, 10 green; 12 green; 8 red, 8 blue, 4 green; 11 green, 9 red, 9 blue
Game 78: 9 green, 14 blue, 16 red; 7 blue, 8 green, 1 red; 5 green, 13 red, 7 blue; 9 green, 6 red
Game 79: 2 red, 3 blue, 8 green; 1 green; 1 blue, 2 green, 1 red; 1 green; 4 blue, 2 green, 1 red
Game 80: 8 red, 3 blue, 10 green; 12 red; 13 red, 4 green, 6 blue; 2 red, 14 blue, 9 green; 13 blue, 1 red, 5 green; 13 blue, 9 red, 2 green
Game 81: 2 green, 4 blue, 9 red; 1 red, 6 blue, 14 green; 4 green, 1 blue, 5 red; 3 blue, 8 red, 9 green; 6 blue, 5 green, 11 red
Game 82: 6 blue, 6 red, 13 green; 5 blue, 4 green, 7 red; 1 green, 1 blue, 2 red
Game 83: 2 red, 8 green; 7 red, 7 green; 11 red, 6 green; 14 red, 2 green, 2 blue; 2 green, 1 blue; 8 green, 11 red, 2 blue
Game 84: 3 blue, 4 green, 9 red; 7 blue, 13 green, 17 red; 14 blue, 16 green, 14 red; 7 blue, 16 green, 3 red; 9 red, 2 blue, 14 green; 13 blue, 3 green, 7 red
Game 85: 1 green, 6 red, 2 blue; 1 blue, 8 green, 5 red; 11 green, 1 red
Game 86: 2 green, 6 blue, 2 red; 4 green, 3 blue, 3 red; 3 blue, 5 green, 8 red; 1 red; 9 red, 4 blue, 2 green; 4 green, 8 blue, 9 red
Game 87: 1 red, 3 blue, 2 green; 14 red, 8 blue, 2 green; 9 blue, 13 red, 5 green; 5 green, 2 blue; 1 green, 10 blue, 14 red; 6 blue, 12 red, 15 green
Game 88: 3 red, 7 green, 1 blue; 2 blue, 4 red, 4 green; 13 green, 3 red, 4 blue
Game 89: 2 red, 14 green, 1 blue; 6 green, 2 red; 8 red, 8 green; 1 blue; 4 red, 1 blue, 15 green; 1 blue, 1 green, 8 red
Game 90: 4 red, 4 blue; 9 red, 7 blue, 2 green; 9 blue, 8 red; 3 red, 1 blue; 15 blue, 9 red; 4 red, 4 blue, 2 green
Game 91: 14 green, 4 red; 10 red, 13 green, 5 blue; 1 green, 7 red, 20 blue
Game 92: 10 green, 7 blue; 12 green, 4 blue; 12 green, 4 red
Game 93: 1 blue, 6 red; 2 blue, 10 red, 2 green; 2 green, 2 blue; 4 red, 2 blue; 4 red, 3 green
Game 94: 2 red, 1 blue; 7 red, 1 green, 1 blue; 1 blue, 5 red; 1 green, 10 red
Game 95: 1 red, 10 blue; 6 red, 4 blue; 2 blue, 4 red; 1 red, 2 green, 7 blue; 1 red, 6 blue
Game 96: 1 green, 16 blue, 1 red; 7 red, 10 blue, 1 green; 18 blue, 12 red
Game 97: 5 blue, 3 red, 8 green; 7 red, 14 green, 1 blue; 11 green
Game 98: 1 green, 12 blue, 7 red; 6 red, 7 blue, 1 green; 5 red, 11 blue, 1 green; 2 green, 8 red, 8 blue
Game 99: 11 red, 7 blue, 15 green; 3 red, 11 green, 5 blue; 19 green, 5 red, 1 blue; 7 green, 4 red
Game 100: 10 red; 11 blue, 12 red; 1 green, 7 blue, 6 red

6
2023/go/main.go
View File

@@ -8,6 +8,7 @@ import (
// "time"
"adventofcode2023/utils"
"adventofcode2023/day01"
"adventofcode2023/day02"
)
// Usage: go run main.go <NN>
// assumes input is in day<NN>/input.txt
@@ -19,6 +20,9 @@ func main() {
case 1:
fmt.Printf("part 1: %d\n", day01.Part1(utils.Readfile(d)))
fmt.Printf("part 2: %d\n", day01.Part2(utils.Readfile(d)))
case 2:
fmt.Printf("part 1: %d\n", day02.Part1(utils.Readfile(d)))
fmt.Printf("part 2: %d\n", day02.Part2(utils.Readfile(d)))
default:
panic(fmt.Errorf("no such day: %d", d))
}
@@ -26,7 +30,7 @@ func main() {
// Reads day from os.Args.
func day() int {
latest := 0
latest := 1
if len(os.Args) == 1 {
return latest
}