solve day 1 part 1 & 2

.gitignore

@@ -227,3 +227,4 @@ dmypy.json
 
 # End of https://www.gitignore.io/api/osx,pycharm,python
 .direnv/
+.venv

.rtx.toml

@@ -0,0 +1,2 @@
+[tools]
+python = {version = "latest", virtualenv = ".venv"}

.tool-versions

@@ -1 +0,0 @@
-python 3.11.2

2023/day01_trebuchet.go

@@ -0,0 +1,104 @@
+package _023
+
+import (
+	"bufio"
+	"io"
+	"regexp"
+	"strconv"
+)
+
+func Part1(input io.Reader) (int, error) {
+	scanner := bufio.NewScanner(input)
+	sum := 0
+
+	for scanner.Scan() {
+		begValue, endValue := 0, 0
+		line := scanner.Text()
+
+		for i := 0; i < len(line); i++ {
+			beg := line[i]
+			if val, err := strconv.Atoi(string(beg)); err == nil && begValue == 0 {
+				begValue = val
+			}
+
+			j := len(line) - 1 - i
+			end := line[j]
+			if val, err := strconv.Atoi(string(end)); err == nil && endValue == 0 {
+				endValue = val
+			}
+
+			if begValue > 0 && endValue > 0 {
+				break
+			}
+		}
+
+		sum += begValue*10 + endValue
+	}
+
+	return sum, nil
+}
+
+func Part2(input io.Reader) (int, error) {
+	reg, err := regexp.Compile(`[0-9]|one|two|three|four|five|six|seven|eight|nine`)
+	if err != nil {
+		return 0, err
+	}
+
+	scanner := bufio.NewScanner(input)
+	sum := 0
+
+	for scanner.Scan() {
+		line := scanner.Text()
+		begValue, endValue := 0, 0
+
+		for i := 0; i < len(line); i++ {
+			beg := reg.FindString(line[:i])
+			if value := translate(beg); value > 0 && begValue == 0 {
+				begValue = value
+			}
+
+			j := len(line) - i - 1
+			end := reg.FindString(line[j:])
+			if value := translate(end); value > 0 && endValue == 0 {
+				endValue = value
+			}
+
+			if begValue > 0 && endValue > 0 {
+				break
+			}
+		}
+
+		if begValue == 0 {
+			begValue = endValue
+		}
+
+		sum += begValue*10 + endValue
+	}
+
+	return sum, nil
+}
+
+func translate(digit string) int {
+	switch digit {
+	case "1", "one":
+		return 1
+	case "2", "two":
+		return 2
+	case "3", "three":
+		return 3
+	case "4", "four":
+		return 4
+	case "5", "five":
+		return 5
+	case "6", "six":
+		return 6
+	case "7", "seven":
+		return 7
+	case "8", "eight":
+		return 8
+	case "9", "nine":
+		return 9
+	default:
+		return 0
+	}
+}

2023/day01_trebuchet_test.go

@@ -0,0 +1,39 @@
+package _023
+
+import (
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+	"os"
+	"testing"
+)
+
+func TestPart1(t *testing.T) {
+	tests := []testCase{
+		{"inputs/day01_test1", 142},
+		{"inputs/day01", 53974},
+	}
+	for _, test := range tests {
+		t.Run(test.filename, check(test, Part1))
+	}
+}
+
+func TestPart2(t *testing.T) {
+	tests := []testCase{
+		{"inputs/day01_test2", 281},
+		{"inputs/day01_test3", 277},
+		{"inputs/day01", 52840},
+	}
+	for _, test := range tests {
+		t.Run(test.filename, check(test, Part2))
+	}
+}
+
+func check(test testCase, fn solveFunc) func(t *testing.T) {
+	return func(t *testing.T) {
+		file, err := os.Open(test.filename)
+		require.NoError(t, err)
+		got, err := fn(file)
+		require.NoError(t, err)
+		assert.Equal(t, test.want, got)
+	}
+}

2023/inputs/day01_test1

@@ -0,0 +1,4 @@
+1abc2
+pqr3stu8vwx
+a1b2c3d4e5f
+treb7uchet

2023/inputs/day01_test2

@@ -0,0 +1,7 @@
+two1nine
+eightwothree
+abcone2threexyz
+xtwone3four
+4nineeightseven2
+zoneight234
+7pqrstsixteen

2023/inputs/day01_test3

@@ -0,0 +1,7 @@
+two1nine
+eightwothree
+abcone2threexyz
+xtwone3four
+4nineeightseven2
+zoneight234
+7pqrsteightwo

2023/types.go

@@ -0,0 +1,10 @@
+package _023
+
+import "io"
+
+type testCase struct {
+	filename string
+	want     int
+}
+
+type solveFunc func(reader io.Reader) (int, error)

go.mod

@@ -0,0 +1,11 @@
+module github.com/Crocmagnon/advent-of-code
+
+go 1.21.4
+
+require github.com/stretchr/testify v1.8.4
+
+require (
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+)

go.sum

@@ -0,0 +1,10 @@
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/stretchr/testify v1.8.4 h1:CcVxjf3Q8PM0mHUKJCdn+eZZtm5yQwehR5yeSVQQcUk=
+github.com/stretchr/testify v1.8.4/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=