chore: add day 14 pt1

day14/example.txt

@@ -0,0 +1,10 @@
+O....#....
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+.....##...
+OO.#O....O
+.O.....O#.
+O.#..O.#.#
+..O..#O..O
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+#....###..
+#OO..#....

day14/input.txt

@@ -0,0 +1,100 @@
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day14/main.go

@@ -0,0 +1,151 @@
+package main
+
+import (
+	"bufio"
+	_ "embed"
+	"fmt"
+	"strings"
+
+	aoc "go.sour.is/advent-of-code-2023"
+)
+
+// var log = aoc.Log
+
+func main() { aoc.MustResult(aoc.Runner(run)) }
+
+type result struct {
+	valuePT1 int
+	valuePT2 int
+}
+
+func (r result) String() string { return fmt.Sprintf("%#v", r) }
+
+func run(scan *bufio.Scanner) (*result, error) {
+	var maps []Map
+	var m Map
+
+	for scan.Scan() {
+		text := scan.Text()
+		if len(text) == 0 {
+			maps = append(maps, m)
+			m = Map{}
+		}
+
+		m = append(m, []rune(text))
+	}
+	maps = append(maps, m)
+
+	score1 := 0
+	for _, m := range maps {
+		m = aoc.Transpose(reverse(m))
+		m.Sort()
+		score1 += m.Score()
+	}
+
+	score2 := 0
+	// type record [5]int
+	// var last, current record
+	// memo := make(map[record]int)
+
+	// for _, m := range maps {
+	// 	fmt.Println(m)
+
+	// 	m = aoc.Transpose(reverse(m))
+
+	// 	for i := 0; i < 1_000_000_000; i++ {
+	// 		m.Sort()
+	// 		current[0] = m.Score()
+
+	// 		m = aoc.Transpose(reverse(m))
+	// 		m.Sort()
+	// 		current[1] = m.Score()
+
+	// 		m = aoc.Transpose(reverse(m))
+	// 		m.Sort()
+	// 		current[2] = m.Score()
+
+	// 		m = aoc.Transpose(reverse(m))
+	// 		m.Sort()
+	// 		current[3] = m.Score()
+
+	// 		m = aoc.Transpose(reverse(m))
+	// 		current[4] = m.Score()
+
+	// 		if slices.Equal(last[:], current[:]) {
+	// 			break
+	// 		}
+
+	// 		v, ok := memo[current]
+	// 		if (i - 104) % 13 == 12 {
+	// 			fmt.Println(i, current, ok, v)
+	// 		}
+	// 		// if ok && v > 2 {
+	// 		// 	break
+	// 		// }
+
+	// 		memo[current] += 1
+
+	// 		last = current
+	// 	}
+
+	// 	score2 += m.Score()
+	// }
+
+	return &result{valuePT1: score1, valuePT2: score2}, nil
+}
+
+type Map [][]rune
+
+func (m Map) String() string {
+	var buf strings.Builder
+	for _, row := range m {
+		buf.WriteString(string(row))
+		buf.WriteRune('\n')
+	}
+	buf.WriteRune('\n')
+
+	return buf.String()
+}
+func (m *Map) Sort() {
+	if m == nil {
+		return
+	}
+	for _, row := range *m {
+		base := 0
+		for i, r := range row {
+			if r == '#' {
+				base = i + 1
+				continue
+			}
+			if r == 'O' {
+				if base < i {
+					row[base], row[i] = row[i], row[base]
+				}
+				base++
+			}
+		}
+	}
+}
+func (m *Map) Score() int {
+	if m == nil {
+		return 0
+	}
+
+	sum := 0
+	max := len(*m)
+	for _, row := range *m {
+		for i, r := range row {
+			if r == 'O' {
+				sum += max - i
+			}
+		}
+	}
+	return sum
+}
+
+func reverse(m Map) Map {
+	for _, row := range m {
+		aoc.Reverse(row)
+	}
+	return m
+}

day14/main_test.go

@@ -0,0 +1,46 @@
+package main
+
+import (
+	"bufio"
+	"bytes"
+	"testing"
+
+	_ "embed"
+
+	"github.com/matryer/is"
+)
+
+//go:embed example.txt
+var example []byte
+
+//go:embed input.txt
+var input []byte
+
+func TestExample(t *testing.T) {
+	is := is.New(t)
+	scan := bufio.NewScanner(bytes.NewReader(example))
+
+	result, err := run(scan)
+	is.NoErr(err)
+
+	t.Log(result)
+	is.Equal(result.valuePT1, 136)
+	is.Equal(result.valuePT2, 64)
+}
+
+func TestSolution(t *testing.T) {
+	is := is.New(t)
+	scan := bufio.NewScanner(bytes.NewReader(input))
+
+	result, err := run(scan)
+	is.NoErr(err)
+
+	t.Log(result)
+ is.True(result.valuePT2 < 87286) // first submission
+ is.True(result.valuePT2 < 87292) // second submission
+ is.True(result.valuePT2 < 87287) // third submission
+
+	is.Equal(result.valuePT1, 110407)
+	is.Equal(result.valuePT2, 87273)
+}
+

go.mod

@@ -1,5 +1,7 @@
 module go.sour.is/advent-of-code-2023
 
-go 1.21.3
+go 1.21.4
+
+toolchain go1.21.5
 
 require github.com/matryer/is v1.4.1