chore: add day 1 and 2

.gitignore

@@ -0,0 +1 @@
+.vscode

day01/main.go

@@ -0,0 +1,139 @@
+package main
+
+import (
+	"bufio"
+	"bytes"
+	_ "embed"
+	"fmt"
+	"strings"
+)
+
+//go:embed input.txt
+var input []byte
+
+func main() {
+	buf := bytes.NewReader(input)
+	scan := bufio.NewScanner(buf)
+
+	sum := 0
+	for scan.Scan() {
+		var first, last int
+
+		orig := scan.Text()
+		_ = orig
+
+		text := scan.Text()
+
+		slice := make([]rune, 5)
+		for i := range text {
+			copy(slice, []rune(text[i:]))
+
+			switch {
+			case slice[0] >= '0' && slice[0] <= '9':
+				first = int(slice[0] - '0')
+			case strings.HasPrefix(string(slice), "one"):
+				first = 1
+			case strings.HasPrefix(string(slice), "two"):
+				first = 2
+			case strings.HasPrefix(string(slice), "three"):
+				first = 3
+			case strings.HasPrefix(string(slice), "four"):
+				first = 4
+			case strings.HasPrefix(string(slice), "five"):
+				first = 5
+			case strings.HasPrefix(string(slice), "six"):
+				first = 6
+			case strings.HasPrefix(string(slice), "seven"):
+				first = 7
+			case strings.HasPrefix(string(slice), "eight"):
+				first = 8
+			case strings.HasPrefix(string(slice), "nine"):
+				first = 9
+
+			}
+			if first != 0 {
+				break
+			}
+		}
+
+		text = string(reverse([]rune(text)))
+
+		for i := range text {
+			copy(slice, []rune(text[i:]))
+			slice = reverse(slice)
+
+			switch {
+			case slice[4] >= '0' && slice[4] <= '9':
+				last = int(slice[4] - '0')
+			case strings.HasSuffix(string(slice), "one"):
+				last = 1
+			case strings.HasSuffix(string(slice), "two"):
+				last = 2
+			case strings.HasSuffix(string(slice), "three"):
+				last = 3
+			case strings.HasSuffix(string(slice), "four"):
+				last = 4
+			case strings.HasSuffix(string(slice), "five"):
+				last = 5
+			case strings.HasSuffix(string(slice), "six"):
+				last = 6
+			case strings.HasSuffix(string(slice), "seven"):
+				last = 7
+			case strings.HasSuffix(string(slice), "eight"):
+				last = 8
+			case strings.HasSuffix(string(slice), "nine"):
+				last = 9
+
+			}
+			if last != 0 {
+				break
+			}
+		}
+
+		sum += first*10 + last
+	}
+	if err := scan.Err(); err != nil {
+		panic(err)
+	}
+
+	fmt.Println(sum)
+}
+
+func reverse[T any](arr []T) []T{
+	for i := 0; i < len(arr)/2; i++ {
+		arr[i], arr[len(arr)-i-1] = arr[len(arr)-i-1], arr[i]
+	}
+	return arr
+}
+
+
+// type sorter[T rune | int] []T
+
+// func (s sorter[T]) Less(i, j int) bool { return s[i] < s[j] }
+// func (s sorter[T]) Len() int      { return len(s) }
+// func (s sorter[T]) Swap(i, j int) { s[i], s[j] = s[j], s[i] }
+
+/*
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+one
+two
+three
+four
+five
+six
+seven
+eight
+nine
+ten
+
+
+*/

day02/example.txt

@@ -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

day02/input.txt

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

day02/main.go

@@ -0,0 +1,104 @@
+package main
+
+import (
+	"bufio"
+	"bytes"
+	_ "embed"
+	"fmt"
+	"strconv"
+	"strings"
+)
+
+//go:embed input.txt
+var input []byte
+
+type gameResult struct {
+	red, green, blue int
+}
+
+func main() {
+	buf := bytes.NewReader(input)
+	scan := bufio.NewScanner(buf)
+
+	// only 12 red cubes, 13 green cubes, and 14 blue cubes
+	maxCounts := gameResult{
+		red:   12,
+		green: 13,
+		blue:  14,
+	}
+
+	games := [][]gameResult{}
+	games = append(games, []gameResult{})
+
+	for scan.Scan() {
+		pfx, text, ok := strings.Cut(scan.Text(), ":")
+		if !ok || !strings.HasPrefix(pfx, "Game") {
+			continue
+		}
+
+		games = append(games, []gameResult{})
+
+		for _, round := range strings.Split(text, ";") {
+			game := gameResult{}
+
+			for _, result := range strings.Split(round, ",") {
+				ns, color, _ := strings.Cut(strings.TrimSpace(result), " ")
+				n, err := strconv.Atoi(ns)
+				if err != nil {
+					panic(err)
+				}
+
+				switch color {
+				case "red":
+					game.red = n
+				case "green":
+					game.green = n
+				case "blue":
+					game.blue = n
+				}
+
+			}
+			games[len(games)-1] = append(games[len(games)-1], game)
+		}
+	}
+
+	fmt.Println(games)
+	fmt.Println(len(games))
+
+	sum := 0
+	powerSum := 0
+	for i, game := range games {
+		if i == 0 {
+			continue
+		}
+
+		mins := gameResult{}
+		ok := true
+
+		for _, round := range game {
+			mins.red = max(mins.red, round.red)
+			mins.green = max(mins.green, round.green)
+			mins.blue = max(mins.blue, round.blue)
+
+			if maxCounts.red < round.red {
+				fmt.Println("game", i, round, "too many red", round.red)
+				ok = false
+			} else if maxCounts.blue < round.blue {
+				fmt.Println("game", i, round, "too many blue", round.blue)
+				ok = false
+			} else if maxCounts.green < round.green {
+				fmt.Println("game", i, round, "too many green", round.green)
+				ok = false
+			}
+			fmt.Println("game", i, round, ok)
+		}
+		if ok {
+			sum += i
+			fmt.Println("game", i, "passes", sum)
+		}
+		power := mins.red*mins.blue*mins.green
+		fmt.Println("game", i, "mins", mins, power)
+		powerSum += power
+	}
+	fmt.Println("sum", sum, "power", powerSum)
+}

go.mod

@@ -0,0 +1,3 @@
+module go.sour.is/advent-of-code-2023
+
+go 1.21.3