feat: add solution for 2023, Day 2: Cube Conundrum
This commit is contained in:
parent
648ebcab4e
commit
b8dba2d4e4
5 changed files with 441 additions and 0 deletions
100
2023/day-2/files/input
Normal file
100
2023/day-2/files/input
Normal file
|
@ -0,0 +1,100 @@
|
|||
Game 1: 7 blue, 6 green, 3 red; 3 red, 5 green, 1 blue; 1 red, 5 green, 8 blue; 3 red, 1 green, 5 blue
|
||||
Game 2: 9 green, 1 blue, 12 red; 1 blue, 18 green, 8 red; 2 blue, 6 green, 13 red; 3 blue, 13 red, 7 green; 5 blue, 4 red, 4 green; 6 blue, 7 green, 4 red
|
||||
Game 3: 5 blue, 9 red, 14 green; 10 green, 3 blue; 11 red, 2 blue, 8 green; 5 red, 2 blue; 5 blue, 7 green, 8 red
|
||||
Game 4: 2 red, 3 blue, 2 green; 17 green, 6 blue, 1 red; 3 blue, 5 green, 1 red; 4 red, 1 blue, 16 green; 5 red, 4 blue, 13 green; 14 green, 5 blue, 6 red
|
||||
Game 5: 3 red, 17 green, 10 blue; 9 blue, 5 green; 14 green, 9 blue, 11 red
|
||||
Game 6: 4 green, 18 blue, 3 red; 6 green, 8 blue, 9 red; 4 green, 9 blue, 7 red; 9 red, 1 green, 12 blue
|
||||
Game 7: 1 blue, 14 green; 1 red, 4 blue, 15 green; 3 blue, 6 green; 3 blue, 2 green, 1 red; 1 red, 3 green, 1 blue
|
||||
Game 8: 10 red, 3 blue, 3 green; 5 blue, 7 red, 3 green; 3 red, 3 green, 11 blue; 1 red, 7 green, 10 blue; 13 blue, 5 green, 5 red; 1 green, 17 blue, 3 red
|
||||
Game 9: 1 blue, 6 green; 7 green, 2 red; 3 red, 2 green; 1 blue, 4 red, 3 green; 7 green, 1 blue, 1 red
|
||||
Game 10: 14 green, 6 blue, 1 red; 8 green, 5 red, 1 blue; 8 green, 5 blue, 5 red; 2 green, 3 blue, 5 red
|
||||
Game 11: 1 blue, 2 green; 1 blue, 1 green, 7 red; 1 blue, 4 green, 7 red; 2 red, 2 green, 1 blue
|
||||
Game 12: 5 blue, 12 green, 12 red; 11 green, 3 red; 14 green, 3 blue, 18 red
|
||||
Game 13: 2 green, 6 red; 6 red, 5 blue; 7 red, 3 blue, 8 green; 7 red, 8 green; 3 blue, 2 green, 3 red; 1 blue, 8 red, 6 green
|
||||
Game 14: 18 green, 6 blue, 5 red; 5 blue, 15 red, 19 green; 7 green, 11 blue, 20 red; 5 red, 18 green, 7 blue
|
||||
Game 15: 3 red, 16 green, 1 blue; 11 green, 6 red, 1 blue; 12 green, 2 red; 17 green, 1 blue, 14 red
|
||||
Game 16: 3 red, 2 green, 5 blue; 1 green, 6 blue, 1 red; 1 green, 2 blue, 3 red; 1 blue, 1 red; 5 blue, 1 green, 2 red
|
||||
Game 17: 3 blue, 6 red; 1 blue, 2 red; 1 blue, 1 green, 7 red; 1 green, 7 red, 2 blue; 7 red, 1 blue; 1 green, 8 red, 1 blue
|
||||
Game 18: 6 green, 10 red; 6 red, 7 green; 10 red, 11 green; 10 red, 2 blue, 5 green
|
||||
Game 19: 2 blue; 1 blue, 4 green, 6 red; 7 green, 6 red, 2 blue; 2 blue, 5 red, 4 green; 1 green, 10 red
|
||||
Game 20: 6 red, 5 green, 10 blue; 5 blue, 5 green, 9 red; 7 blue, 3 green, 3 red; 9 blue, 12 red, 1 green
|
||||
Game 21: 4 red, 18 blue, 14 green; 3 green, 14 blue, 5 red; 5 green, 12 blue; 1 blue, 2 red, 1 green; 5 red, 11 green, 7 blue; 17 green, 4 red, 15 blue
|
||||
Game 22: 1 blue, 14 green, 4 red; 7 green, 10 red; 9 green, 1 blue, 9 red; 1 blue, 8 green, 5 red
|
||||
Game 23: 4 blue, 5 green, 2 red; 6 blue, 8 red, 4 green; 4 blue, 17 red, 14 green
|
||||
Game 24: 3 green, 8 blue; 3 blue, 5 green, 13 red; 17 red, 4 green
|
||||
Game 25: 19 red, 9 blue, 1 green; 3 green, 18 red, 6 blue; 1 green, 7 red, 7 blue; 8 blue, 1 red
|
||||
Game 26: 10 green, 12 blue, 2 red; 9 red; 10 blue, 12 green, 9 red
|
||||
Game 27: 2 blue, 8 green, 6 red; 5 green, 9 red; 4 red, 11 green
|
||||
Game 28: 10 blue, 20 red; 14 blue, 3 green, 2 red; 9 red, 12 blue, 1 green
|
||||
Game 29: 4 red, 1 blue, 2 green; 1 green, 6 red, 1 blue; 15 red
|
||||
Game 30: 1 red, 13 blue, 6 green; 3 blue, 4 green; 19 blue, 11 green; 1 red, 11 green, 14 blue
|
||||
Game 31: 10 red, 12 green; 12 green, 10 red; 2 blue, 15 red, 12 green; 2 green, 2 blue, 15 red; 9 green, 5 red, 2 blue
|
||||
Game 32: 5 blue, 5 green, 8 red; 5 green, 6 red; 5 blue, 8 red, 4 green; 5 green, 3 blue, 6 red
|
||||
Game 33: 1 red, 9 green, 5 blue; 17 green, 4 blue; 3 green, 2 blue; 10 green, 2 blue; 1 blue, 4 green; 2 green, 9 blue
|
||||
Game 34: 11 blue, 11 red, 9 green; 13 red, 3 blue, 5 green; 9 green, 12 blue, 5 red; 13 red, 8 blue, 5 green
|
||||
Game 35: 1 green, 3 red, 7 blue; 1 red, 3 green, 9 blue; 1 blue, 2 green, 1 red; 11 blue, 5 red, 6 green
|
||||
Game 36: 4 blue, 12 green, 16 red; 7 blue, 11 green; 8 green, 5 blue, 1 red; 14 green, 3 red
|
||||
Game 37: 13 red, 5 blue, 9 green; 1 red, 10 blue, 14 green; 1 green, 2 blue, 10 red; 13 red, 10 blue; 1 blue, 8 green
|
||||
Game 38: 3 red, 4 blue, 8 green; 1 red, 11 blue, 4 green; 13 blue, 8 green; 3 red, 3 green, 10 blue; 1 red, 1 blue, 1 green; 1 green, 2 red, 10 blue
|
||||
Game 39: 9 red, 7 blue, 1 green; 15 red, 4 green, 1 blue; 2 green, 8 blue, 7 red; 6 blue, 11 red; 12 red, 2 blue, 7 green
|
||||
Game 40: 13 red, 3 green, 1 blue; 3 green, 10 red; 16 red
|
||||
Game 41: 1 blue, 3 red; 7 blue, 5 red, 3 green; 4 red, 3 blue, 2 green; 2 blue, 5 red, 1 green; 3 green, 4 red, 3 blue; 5 blue, 2 red
|
||||
Game 42: 1 red, 4 green; 11 red, 4 green; 13 red; 1 blue, 10 red; 1 blue, 2 red, 4 green
|
||||
Game 43: 11 green, 13 red, 1 blue; 11 green, 9 red, 2 blue; 7 green; 13 green, 15 red; 1 blue, 14 green
|
||||
Game 44: 5 green, 14 blue, 15 red; 13 blue, 15 green; 9 green, 15 red, 6 blue
|
||||
Game 45: 16 red, 8 blue; 1 green, 4 blue, 6 red; 4 blue, 8 red; 12 red, 3 blue, 3 green; 2 green, 4 red, 4 blue; 2 green, 8 blue, 10 red
|
||||
Game 46: 12 blue, 3 green, 12 red; 9 red, 9 blue; 3 green, 12 red; 10 red, 6 green; 2 red, 7 blue
|
||||
Game 47: 9 green, 6 red; 1 blue, 7 red, 10 green; 1 green, 2 red; 1 red, 3 green
|
||||
Game 48: 9 blue, 5 green, 13 red; 14 green, 4 red; 15 red, 9 green, 1 blue; 4 blue, 6 red, 13 green; 9 green, 8 blue, 8 red
|
||||
Game 49: 5 blue, 3 red; 1 green, 2 red, 5 blue; 1 green, 7 blue; 3 green
|
||||
Game 50: 8 red, 6 green; 10 blue, 4 green, 6 red; 8 green, 11 blue, 9 red
|
||||
Game 51: 5 blue; 13 blue; 1 red, 2 blue, 1 green; 1 red, 8 blue
|
||||
Game 52: 7 blue; 1 red, 2 green, 12 blue; 1 red, 5 blue; 2 red, 7 blue, 4 green; 3 green, 2 red, 2 blue
|
||||
Game 53: 10 blue, 12 red; 3 green, 5 blue, 3 red; 14 red, 4 green, 7 blue; 1 red, 14 blue
|
||||
Game 54: 2 blue, 14 red, 3 green; 3 green, 7 red; 2 blue, 3 green, 9 red; 3 green, 7 red; 1 green, 14 red, 1 blue
|
||||
Game 55: 3 green, 9 red, 12 blue; 5 blue, 5 green, 2 red; 7 green, 14 red, 12 blue
|
||||
Game 56: 1 blue, 3 red, 4 green; 5 red, 8 green, 1 blue; 3 green, 1 blue, 2 red
|
||||
Game 57: 8 blue, 13 red, 2 green; 3 blue, 5 red; 7 red, 2 green; 2 red, 5 blue, 3 green; 1 green, 4 blue
|
||||
Game 58: 4 green, 3 red, 2 blue; 5 green, 2 blue, 10 red; 11 green, 1 red, 2 blue; 4 red, 5 green
|
||||
Game 59: 5 green; 4 green, 2 blue; 1 red, 9 green; 7 green, 2 blue; 16 green, 1 blue
|
||||
Game 60: 6 green, 5 blue, 1 red; 5 blue, 3 green, 6 red; 1 green, 5 blue, 14 red; 6 red, 4 blue, 3 green
|
||||
Game 61: 2 green, 6 red, 6 blue; 6 blue, 3 red; 1 green, 2 red, 2 blue; 1 red, 2 green; 5 red, 1 green, 2 blue; 2 green, 6 red, 6 blue
|
||||
Game 62: 18 green, 8 blue, 1 red; 8 green, 4 red; 13 blue, 1 red, 3 green; 7 blue, 2 green, 4 red; 4 blue, 12 green, 5 red; 12 green, 11 blue
|
||||
Game 63: 2 red, 3 blue; 10 green, 13 red, 1 blue; 11 red, 3 green, 4 blue
|
||||
Game 64: 1 green, 16 red; 17 blue, 9 red, 1 green; 14 red, 7 blue
|
||||
Game 65: 7 blue, 11 red, 11 green; 7 red, 11 green; 3 blue, 13 red, 11 green; 5 green, 6 blue; 11 blue, 8 red, 3 green
|
||||
Game 66: 3 blue, 1 green, 3 red; 5 blue, 2 green, 5 red; 1 blue, 2 green, 7 red; 2 blue, 6 red; 7 red, 2 green, 2 blue; 2 red
|
||||
Game 67: 1 blue, 6 red, 2 green; 1 blue, 10 green, 6 red; 8 red, 2 blue, 4 green; 7 green, 9 red, 1 blue; 8 red, 7 green; 5 green, 1 blue
|
||||
Game 68: 15 blue, 8 green, 2 red; 6 blue, 2 green; 5 red, 6 green, 8 blue; 6 red, 11 green, 7 blue; 1 red, 3 blue; 5 red, 6 green, 5 blue
|
||||
Game 69: 5 blue, 4 green; 1 green, 11 red, 9 blue; 4 green, 15 blue, 6 red; 11 blue, 4 green, 5 red; 8 red, 3 green; 5 blue, 8 red
|
||||
Game 70: 5 blue, 4 red, 8 green; 6 blue, 6 green; 14 blue, 7 red, 1 green; 2 green, 6 blue, 3 red; 7 red, 11 blue, 3 green
|
||||
Game 71: 13 red, 6 blue, 10 green; 7 red, 12 green; 9 green, 14 red, 2 blue
|
||||
Game 72: 9 red, 3 green, 3 blue; 8 red, 7 blue, 5 green; 3 blue, 2 green, 1 red; 1 red, 2 blue, 2 green; 10 red, 7 green, 6 blue
|
||||
Game 73: 4 green, 3 red; 1 red; 2 red, 2 blue, 2 green; 1 blue, 3 red, 1 green; 2 blue, 3 red, 2 green; 1 red, 1 blue
|
||||
Game 74: 12 green, 4 red, 4 blue; 3 red, 13 green; 1 red, 13 green, 1 blue; 1 red, 3 blue, 6 green; 6 blue, 5 red, 4 green; 7 blue, 5 green, 1 red
|
||||
Game 75: 11 red, 1 green; 12 blue, 1 red; 2 blue, 1 green, 4 red; 11 red; 12 red, 6 green, 10 blue; 4 green, 5 blue, 7 red
|
||||
Game 76: 2 blue, 5 red, 6 green; 1 red, 10 green, 11 blue; 7 red, 11 green; 4 red, 10 blue, 10 green; 7 blue, 16 green, 2 red
|
||||
Game 77: 2 blue, 11 red, 4 green; 6 green, 3 blue, 2 red; 2 blue, 2 red, 7 green; 8 red, 14 blue, 5 green; 5 green, 2 blue, 18 red
|
||||
Game 78: 9 red, 7 green, 6 blue; 12 blue, 6 red; 1 red, 15 blue, 7 green; 3 blue, 11 green, 1 red
|
||||
Game 79: 3 blue; 1 blue; 1 red, 1 blue, 1 green; 3 blue; 5 blue, 1 red; 1 blue, 1 green, 1 red
|
||||
Game 80: 18 blue, 13 green, 7 red; 18 blue, 3 green, 3 red; 2 red, 9 blue, 14 green
|
||||
Game 81: 11 blue, 6 green, 3 red; 8 green, 12 red, 10 blue; 5 red, 4 blue, 13 green
|
||||
Game 82: 2 blue, 3 red; 4 blue, 17 red; 9 red; 12 red; 1 green, 6 blue, 7 red; 20 red
|
||||
Game 83: 1 blue, 1 red; 3 red, 1 blue; 3 red, 5 green; 1 blue, 2 green, 4 red; 5 green, 3 blue, 2 red
|
||||
Game 84: 4 red, 2 blue, 2 green; 8 red, 10 blue; 1 green, 15 red, 8 blue
|
||||
Game 85: 15 green; 11 red, 2 blue, 5 green; 8 red, 2 blue, 12 green; 15 red, 10 green; 10 red, 15 green; 17 red, 1 blue, 11 green
|
||||
Game 86: 6 blue, 1 red; 2 green, 1 red, 8 blue; 2 green, 10 blue; 10 blue, 2 green; 1 red, 5 blue
|
||||
Game 87: 4 red, 4 blue; 18 red, 8 blue; 16 red; 4 red, 1 green, 3 blue; 14 red, 9 blue
|
||||
Game 88: 11 green, 7 blue, 4 red; 3 red; 2 blue, 12 red, 19 green; 13 red, 3 blue, 2 green
|
||||
Game 89: 1 green, 1 red; 1 blue, 1 red, 6 green; 6 green, 3 red; 5 green, 2 red, 6 blue; 7 blue, 2 red, 8 green; 1 red, 2 blue
|
||||
Game 90: 3 green, 3 red, 3 blue; 5 green, 2 blue, 3 red; 1 blue, 2 red; 11 green, 1 blue, 2 red; 1 green, 3 blue, 4 red
|
||||
Game 91: 7 blue, 2 red; 2 blue, 1 red, 1 green; 6 blue, 1 red; 1 red, 7 blue
|
||||
Game 92: 11 green, 16 blue; 17 red, 7 blue, 9 green; 11 green, 3 blue, 12 red; 2 blue, 1 green, 6 red
|
||||
Game 93: 6 red, 1 blue, 3 green; 1 blue, 8 red, 7 green; 3 red, 5 green; 1 red, 2 green; 3 red, 7 green; 2 green, 15 red, 1 blue
|
||||
Game 94: 7 blue, 2 red, 2 green; 9 blue, 4 red, 2 green; 9 blue, 5 red, 3 green; 1 blue, 4 red, 3 green; 4 red, 1 green, 7 blue; 9 blue, 3 green, 3 red
|
||||
Game 95: 1 blue, 2 green, 2 red; 6 green, 6 red, 1 blue; 3 blue, 5 red, 2 green; 1 blue; 5 green, 2 red, 2 blue
|
||||
Game 96: 3 blue, 6 red, 5 green; 5 blue, 8 green, 9 red; 2 red, 5 green, 1 blue; 6 green, 4 blue, 3 red; 2 green, 2 blue; 6 blue, 4 green
|
||||
Game 97: 6 green, 8 blue, 5 red; 9 green, 6 blue; 3 green, 3 blue; 2 blue, 10 green, 4 red
|
||||
Game 98: 11 blue, 1 green, 9 red; 5 green, 1 blue, 6 red; 13 blue, 6 green, 10 red; 6 blue, 4 green, 9 red
|
||||
Game 99: 4 red, 3 green, 3 blue; 6 blue, 4 green, 11 red; 3 green, 15 red; 1 blue, 6 green, 14 red
|
||||
Game 100: 14 green, 6 blue, 12 red; 2 green, 1 blue, 2 red; 12 red, 7 blue, 3 green; 1 blue, 12 red, 8 green
|
95
2023/day-2/game.go
Normal file
95
2023/day-2/game.go
Normal file
|
@ -0,0 +1,95 @@
|
|||
package main
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"strconv"
|
||||
"strings"
|
||||
)
|
||||
|
||||
type Game struct {
|
||||
ID int
|
||||
Sets []Set
|
||||
}
|
||||
|
||||
type Set struct {
|
||||
Red int
|
||||
Green int
|
||||
Blue int
|
||||
}
|
||||
|
||||
func parseGame(line string) (Game, error) {
|
||||
splits := strings.SplitN(strings.ReplaceAll(line, " ", ""), ":", 2)
|
||||
|
||||
if len(splits) != 2 {
|
||||
return Game{}, fmt.Errorf("unexpected number of splits from %s; want 2; got %d", splits, len(splits))
|
||||
}
|
||||
|
||||
gameStr, setsStr := splits[0], splits[1]
|
||||
|
||||
gameID, err := parseGameID(gameStr)
|
||||
if err != nil {
|
||||
return Game{}, fmt.Errorf("unable to parse the Game ID; %w", err)
|
||||
}
|
||||
|
||||
sets, err := parseSets(setsStr)
|
||||
if err != nil {
|
||||
return Game{}, fmt.Errorf("unable to parse the sets; %w", err)
|
||||
}
|
||||
|
||||
game := Game{
|
||||
ID: gameID,
|
||||
Sets: sets,
|
||||
}
|
||||
|
||||
return game, nil
|
||||
}
|
||||
|
||||
func parseGameID(game string) (int, error) {
|
||||
id, err := strconv.Atoi(strings.TrimPrefix(game, "Game"))
|
||||
if err != nil {
|
||||
return 0, fmt.Errorf("error running strconv.Atoi(); %w", err)
|
||||
}
|
||||
|
||||
return id, nil
|
||||
}
|
||||
|
||||
func parseSets(str string) ([]Set, error) {
|
||||
setList := strings.Split(str, ";")
|
||||
var sets []Set
|
||||
|
||||
const (
|
||||
red = "red"
|
||||
green = "green"
|
||||
blue = "blue"
|
||||
)
|
||||
|
||||
for _, s := range setList {
|
||||
set := Set{0, 0, 0}
|
||||
split := strings.Split(s, ",")
|
||||
for _, i := range split {
|
||||
switch {
|
||||
case strings.HasSuffix(i, red):
|
||||
value, err := strconv.Atoi(strings.TrimSuffix(i, red))
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("unable to run strconv.Atoi() on %s; %w", i, err)
|
||||
}
|
||||
set.Red = value
|
||||
case strings.HasSuffix(i, green):
|
||||
value, err := strconv.Atoi(strings.TrimSuffix(i, green))
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("unable to run strconv.Atoi() on %s; %w", i, err)
|
||||
}
|
||||
set.Green = value
|
||||
case strings.HasSuffix(i, "blue"):
|
||||
value, err := strconv.Atoi(strings.TrimSuffix(i, blue))
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("unable to run strconv.Atoi() on %s; %w", i, err)
|
||||
}
|
||||
set.Blue = value
|
||||
}
|
||||
}
|
||||
sets = append(sets, set)
|
||||
}
|
||||
|
||||
return sets, nil
|
||||
}
|
62
2023/day-2/game_test.go
Normal file
62
2023/day-2/game_test.go
Normal file
|
@ -0,0 +1,62 @@
|
|||
package main
|
||||
|
||||
import (
|
||||
"reflect"
|
||||
"testing"
|
||||
)
|
||||
|
||||
func TestParseGame(t *testing.T) {
|
||||
table := []struct {
|
||||
testGame string
|
||||
want Game
|
||||
}{
|
||||
{
|
||||
testGame: "Game1: 10 green, 1 blue, 7red",
|
||||
want: Game{
|
||||
ID: 1,
|
||||
Sets: []Set{
|
||||
{
|
||||
Red: 7,
|
||||
Green: 10,
|
||||
Blue: 1,
|
||||
},
|
||||
},
|
||||
},
|
||||
},
|
||||
{
|
||||
testGame: "Game 100: 8 green, 6 blue, 20red; 5 blue, 4 red, 13green; 5 green, 1 red",
|
||||
want: Game{
|
||||
ID: 100,
|
||||
Sets: []Set{
|
||||
{
|
||||
Red: 20,
|
||||
Green: 8,
|
||||
Blue: 6,
|
||||
},
|
||||
{
|
||||
Red: 4,
|
||||
Green: 13,
|
||||
Blue: 5,
|
||||
},
|
||||
{
|
||||
Red: 1,
|
||||
Green: 5,
|
||||
Blue: 0,
|
||||
},
|
||||
},
|
||||
},
|
||||
},
|
||||
}
|
||||
|
||||
for i := range table {
|
||||
got, err := parseGame(table[i].testGame)
|
||||
if err != nil {
|
||||
t.Fatalf("Error running parseGame(); %v", err)
|
||||
}
|
||||
|
||||
if !reflect.DeepEqual(table[i].want, got) {
|
||||
t.Errorf("unexpected result after parsing the game; want %+v, got %+v", table[i].want, got)
|
||||
}
|
||||
|
||||
}
|
||||
}
|
140
2023/day-2/main.go
Normal file
140
2023/day-2/main.go
Normal file
|
@ -0,0 +1,140 @@
|
|||
package main
|
||||
|
||||
import (
|
||||
"bufio"
|
||||
"fmt"
|
||||
"io"
|
||||
"log"
|
||||
"os"
|
||||
)
|
||||
|
||||
func main() {
|
||||
filename := "2023/day-2/files/input"
|
||||
|
||||
file1, err := os.Open(filename)
|
||||
if err != nil {
|
||||
log.Fatalf("ERROR: unable to open %s, %v\n", filename, err)
|
||||
}
|
||||
defer file1.Close()
|
||||
|
||||
sumOfIDs, err := sumOfGameIDs(file1)
|
||||
if err != nil {
|
||||
log.Fatalf("ERROR: unable to calculate the sum of the IDs of the valid games; %v\n", err)
|
||||
}
|
||||
|
||||
fmt.Printf("Total sum of the IDs of the valid games: %d\n", sumOfIDs)
|
||||
|
||||
file2, err := os.Open(filename)
|
||||
if err != nil {
|
||||
log.Fatalf("ERROR: unable to open %s, %v\n", filename, err)
|
||||
}
|
||||
defer file2.Close()
|
||||
|
||||
sumOfPower, err := sumOfThePowerOfTheCubes(file2)
|
||||
if err != nil {
|
||||
log.Fatalf("ERROR: unable to calculate the sum of the power of cubes; %v\n", err)
|
||||
}
|
||||
|
||||
fmt.Printf("Total sum of the power of cubes: %d\n", sumOfPower)
|
||||
}
|
||||
|
||||
// sumOfGameIDs solves Part 1
|
||||
func sumOfGameIDs(r io.Reader) (int, error) {
|
||||
scanner := bufio.NewScanner(r)
|
||||
|
||||
sum := 0
|
||||
|
||||
for scanner.Scan() {
|
||||
line := scanner.Text()
|
||||
|
||||
if len(line) == 0 {
|
||||
continue
|
||||
}
|
||||
|
||||
game, err := parseGame(line)
|
||||
if err != nil {
|
||||
return 0, fmt.Errorf("unable to parse %q; %w", game, err)
|
||||
}
|
||||
|
||||
if validGame(game.Sets) {
|
||||
sum = sum + game.ID
|
||||
}
|
||||
}
|
||||
|
||||
if err := scanner.Err(); err != nil {
|
||||
return 0, fmt.Errorf("received an error after scanning file; %w", err)
|
||||
}
|
||||
|
||||
return sum, nil
|
||||
}
|
||||
|
||||
// sumOfThePowerOfTheCubes solves Part 2
|
||||
func sumOfThePowerOfTheCubes(r io.Reader) (int, error) {
|
||||
scanner := bufio.NewScanner(r)
|
||||
|
||||
sum := 0
|
||||
|
||||
for scanner.Scan() {
|
||||
line := scanner.Text()
|
||||
|
||||
if len(line) == 0 {
|
||||
continue
|
||||
}
|
||||
|
||||
game, err := parseGame(line)
|
||||
if err != nil {
|
||||
return 0, fmt.Errorf("unable to parse %q; %w", game, err)
|
||||
}
|
||||
|
||||
fewestCubeSet := fewestSet(game.Sets)
|
||||
|
||||
sum = sum + (fewestCubeSet.Red * fewestCubeSet.Green * fewestCubeSet.Blue)
|
||||
}
|
||||
|
||||
if err := scanner.Err(); err != nil {
|
||||
return 0, fmt.Errorf("received an error after scanning file; %w", err)
|
||||
}
|
||||
|
||||
return sum, nil
|
||||
}
|
||||
|
||||
func validGame(sets []Set) bool {
|
||||
const (
|
||||
maxRed = 12
|
||||
maxGreen = 13
|
||||
maxBlue = 14
|
||||
)
|
||||
|
||||
for _, set := range sets {
|
||||
switch {
|
||||
case set.Red > maxRed:
|
||||
return false
|
||||
case set.Blue > maxBlue:
|
||||
return false
|
||||
case set.Green > maxGreen:
|
||||
return false
|
||||
}
|
||||
}
|
||||
|
||||
return true
|
||||
}
|
||||
|
||||
func fewestSet(sets []Set) Set {
|
||||
result := Set{0, 0, 0}
|
||||
|
||||
for _, set := range sets {
|
||||
if set.Red > result.Red {
|
||||
result.Red = set.Red
|
||||
}
|
||||
|
||||
if set.Green > result.Green {
|
||||
result.Green = set.Green
|
||||
}
|
||||
|
||||
if set.Blue > result.Blue {
|
||||
result.Blue = set.Blue
|
||||
}
|
||||
}
|
||||
|
||||
return result
|
||||
}
|
44
2023/day-2/main_test.go
Normal file
44
2023/day-2/main_test.go
Normal file
|
@ -0,0 +1,44 @@
|
|||
package main
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"testing"
|
||||
)
|
||||
|
||||
var testStr = `
|
||||
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
|
||||
`
|
||||
|
||||
func TestSumOfGameIDs(t *testing.T) {
|
||||
buf := bytes.NewBufferString(testStr)
|
||||
|
||||
got, err := sumOfGameIDs(buf)
|
||||
if err != nil {
|
||||
t.Fatalf("Received an error after running sumOfGameIDs(); %v\n", err)
|
||||
}
|
||||
|
||||
want := 8
|
||||
|
||||
if got != want {
|
||||
t.Errorf("unexpected result received from sumOfGameIDs(); want %d, got %d\n", want, got)
|
||||
}
|
||||
}
|
||||
|
||||
func TestSumOfThePowerOfTheCubes(t *testing.T) {
|
||||
buf := bytes.NewBufferString(testStr)
|
||||
|
||||
got, err := sumOfThePowerOfTheCubes(buf)
|
||||
if err != nil {
|
||||
t.Fatalf("Received an error after running sumOfThePowerOfTheCubes(); %v\n", err)
|
||||
}
|
||||
|
||||
want := 2286
|
||||
|
||||
if got != want {
|
||||
t.Errorf("unexpected result received from sumOfThePowerOfTheCubes(); want %d; got %d", want, got)
|
||||
}
|
||||
}
|
Loading…
Reference in a new issue