anonfunc/adventofcode2023
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day 02

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This commit is contained in:
Giovanni Harting
2023-12-02 16:36:49 +01:00
parent 914adc63e6
commit db32ffa315
7 changed files with 173 additions and 61 deletions
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0
input.txt → 01/input.txt
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4
01/main.go
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@@ -71,10 +71,10 @@ func main() {
// find single digits in backward-replaced line
lastMatch := nRegex.FindAllStringSubmatch(backwardReplacedLine, -1)
// get first matchgroup, first match (aka first digit in forwardReplacedLine)
// get first match, first matchgroup (aka first digit in forwardReplacedLine)
first := firstMatch[0][0]
// get last matchgroup, first match (aka last digit in backwardReplacedLine)
// get last match, first matchgroup (aka last digit in backwardReplacedLine)
last := lastMatch[len(lastMatch)-1:][0][0]
fmt.Println(first + last)

2
02/go.mod
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@@ -1,3 +1,5 @@
module adventofcode
go 1.21
require github.com/kylelemons/godebug v1.1.0 // indirect

2
02/go.sum Normal file
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@@ -0,0 +1,2 @@
github.com/kylelemons/godebug v1.1.0 h1:RPNrshWIDI6G2gRW9EHilWtl7Z6Sb1BR0xunSBf0SNc=
github.com/kylelemons/godebug v1.1.0/go.mod h1:9/0rRGxNHcop5bhtWyNeEfOS8JIWk580+fNqagV/RAw=

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

121
02/main.go
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@@ -3,6 +3,7 @@ package main
import (
"flag"
"fmt"
"math"
"os"
"regexp"
"strconv"
@@ -10,19 +11,18 @@ import (
)
var (
inputFile = flag.String("input", "input.txt", "input filename")
nRegex = regexp.MustCompile(`(?m)\d`)
reMap = map[string]string{
"one": "1",
"two": "2",
"three": "3",
"four": "4",
"five": "5",
"six": "6",
"seven": "7",
"eight": "8",
"nine": "9",
}
inputFile = flag.String("input", "input.txt", "input filename")
subsetRegex = regexp.MustCompile(`(?mi)(\d+)+\s(\w+)([,;]?)`)
startRegex = regexp.MustCompile(`(?mi)Game\s(\d+):`)
)
const (
BlueCube = "blue"
GreenCube = "green"
RedCube = "red"
MaxRed = 12
MaxGreen = 13
MaxBlue = 14
)
func main() {
@@ -32,61 +32,64 @@ func main() {
panic(err)
}
var sum int
var sum, powSum int
for _, line := range strings.Split(string(input), "\n") {
if strings.TrimSpace(line) == "" {
continue
}
// forward-scan for spelled digits
var forwardReplacedLine, backwardReplacedLine string
for i := 0; i < len(line); i++ {
forwardReplacedLine += string(line[i])
// replace all potential spelled out digits by their non-word counterpart (e.g. "one" -> "1")
for key, val := range reMap {
forwardReplacedLine = strings.ReplaceAll(forwardReplacedLine, key, val)
}
}
fmt.Println(forwardReplacedLine)
// backward-scan for spelled digits
for i := len(line) - 1; i >= 0; i-- {
if i == len(line)-1 {
backwardReplacedLine = string(line[i])
} else {
backwardReplacedLine = string(line[i]) + backwardReplacedLine
}
// replace all potential spelled out digits by their non-word counterpart (e.g. "one" -> "1")
for key, val := range reMap {
backwardReplacedLine = strings.ReplaceAll(backwardReplacedLine, key, val)
}
}
fmt.Println(backwardReplacedLine)
// find single digits in forward-replaced line
firstMatch := nRegex.FindAllStringSubmatch(forwardReplacedLine, -1)
// find single digits in backward-replaced line
lastMatch := nRegex.FindAllStringSubmatch(backwardReplacedLine, -1)
// get first matchgroup, first match (aka first digit in forwardReplacedLine)
first := firstMatch[0][0]
// get last matchgroup, first match (aka last digit in backwardReplacedLine)
last := lastMatch[len(lastMatch)-1:][0][0]
fmt.Println(first + last)
// concatenate digits and convert the resulting string to int
asInt, err := strconv.Atoi(first + last)
// find id
idMatch := startRegex.FindAllStringSubmatch(line, -1)
id, err := strconv.Atoi(idMatch[0][1])
if err != nil {
panic(err)
}
sum += asInt
// find sets of digit + color + separator (e.g. "3 blue,")
subsets := subsetRegex.FindAllStringSubmatch(line, -1)
var red, green, blue int
var minRed, minGreen, minBlue int
possible := true
for _, subset := range subsets {
cubeAmount, err := strconv.Atoi(subset[1])
if err != nil {
panic(err)
}
// add cube amount to set
switch strings.ToLower(subset[2]) {
case BlueCube:
blue += cubeAmount
case GreenCube:
green += cubeAmount
case RedCube:
red += cubeAmount
}
// end of set reached
if subset[3] == "" || subset[3] == ";" {
if red > MaxRed || green > MaxGreen || blue > MaxBlue {
possible = false
}
minBlue = int(math.Max(float64(minBlue), float64(blue)))
minRed = int(math.Max(float64(minRed), float64(red)))
minGreen = int(math.Max(float64(minGreen), float64(green)))
red = 0
blue = 0
green = 0
}
}
// end of game reached
powSum += minRed * minGreen * minBlue
if possible {
fmt.Printf("%d possible\n", id)
sum += id
}
}
fmt.Println(sum)
fmt.Printf("Sum of IDs: %d\n", sum)
fmt.Printf("Sum of the power of sets: %d", powSum)
}

5
02/test_input.txt Normal file
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@@ -0,0 +1,5 @@
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