diff --git a/day-05/benchmark b/day-05/benchmark new file mode 100644 index 0000000..7205356 --- /dev/null +++ b/day-05/benchmark @@ -0,0 +1,15 @@ +goos: linux +goarch: amd64 +pkg: github.com/onyx-and-iris/aoc2024/day-05 +cpu: Intel(R) Core(TM) i7-8700K CPU @ 3.70GHz +BenchmarkSolve-12 1000000000 0.02016 ns/op +BenchmarkSolve-12 1000000000 0.02019 ns/op +BenchmarkSolve-12 1000000000 0.02182 ns/op +BenchmarkSolve-12 1000000000 0.01990 ns/op +BenchmarkSolve-12 1000000000 0.02056 ns/op +BenchmarkSolve-12 1000000000 0.02031 ns/op +BenchmarkSolve-12 1000000000 0.02083 ns/op +BenchmarkSolve-12 1000000000 0.02167 ns/op +BenchmarkSolve-12 1000000000 0.02048 ns/op +BenchmarkSolve-12 1000000000 0.02080 ns/op +ok github.com/onyx-and-iris/aoc2024/day-05 1.471s diff --git a/day-05/cmd/cli/main.go b/day-05/cmd/cli/main.go new file mode 100644 index 0000000..7767db3 --- /dev/null +++ b/day-05/cmd/cli/main.go @@ -0,0 +1,41 @@ +/******************************************************************************** + Advent of Code 2024 - day-05 +********************************************************************************/ + +package main + +import ( + "embed" + "flag" + "fmt" + "slices" + + log "github.com/sirupsen/logrus" + + problems "github.com/onyx-and-iris/aoc2024/day-05" +) + +//go:embed testdata +var files embed.FS + +func main() { + filename := flag.String("f", "input.txt", "input file") + loglevel := flag.Int("l", int(log.InfoLevel), "log level") + flag.Parse() + + if slices.Contains(log.AllLevels, log.Level(*loglevel)) { + log.SetLevel(log.Level(*loglevel)) + } + + data, err := files.ReadFile(fmt.Sprintf("testdata/%s", *filename)) + if err != nil { + log.Fatal(err) + } + + one, two, err := problems.Solve(data) + if err != nil { + log.Fatal(err) + } + + fmt.Printf("solution one: %d\nsolution two: %d\n", one, two) +} diff --git a/day-05/go.mod b/day-05/go.mod new file mode 100644 index 0000000..24dfe83 --- /dev/null +++ b/day-05/go.mod @@ -0,0 +1,7 @@ +module github.com/onyx-and-iris/aoc2024/day-05 + +go 1.23.3 + +require github.com/sirupsen/logrus v1.9.3 + +require golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8 // indirect diff --git a/day-05/go.sum b/day-05/go.sum new file mode 100644 index 0000000..21f9bfb --- /dev/null +++ b/day-05/go.sum @@ -0,0 +1,15 @@ +github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= +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/sirupsen/logrus v1.9.3 h1:dueUQJ1C2q9oE3F7wvmSGAaVtTmUizReu6fjN8uqzbQ= +github.com/sirupsen/logrus v1.9.3/go.mod h1:naHLuLoDiP4jHNo9R0sCBMtWGeIprob74mVsIT4qYEQ= +github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME= +github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY= +github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg= +golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8 h1:0A+M6Uqn+Eje4kHMK80dtF3JCXC4ykBgQG4Fe06QRhQ= +golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= +gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= +gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo= +gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= diff --git a/day-05/internal/one/benchmark b/day-05/internal/one/benchmark new file mode 100644 index 0000000..0e33e3d --- /dev/null +++ b/day-05/internal/one/benchmark @@ -0,0 +1,6 @@ +goos: linux +goarch: amd64 +pkg: github.com/onyx-and-iris/aoc2024/day-05/internal/one +cpu: Intel(R) Core(TM) i7-8700K CPU @ 3.70GHz +BenchmarkSolve-12 1000000000 0.007571 ns/op +ok github.com/onyx-and-iris/aoc2024/day-05/internal/one 0.052s diff --git a/day-05/internal/one/solve.go b/day-05/internal/one/solve.go new file mode 100644 index 0000000..934489c --- /dev/null +++ b/day-05/internal/one/solve.go @@ -0,0 +1,43 @@ +package one + +import ( + "bytes" + "slices" + + "github.com/onyx-and-iris/aoc2024/day-05/internal/util" +) + +func Solve(buf []byte) (int, error) { + r := bytes.NewReader(buf) + data, err := util.ParseLines(r) + if err != nil { + return 0, err + } + + var sum int + + for i, products := range data[1] { + inOrder := true + for _, product := range products { + for _, rules := range data[0] { + if !slices.Contains(rules, product) { + continue + } + + indx1, indx2 := slices.Index(products, rules[0]), slices.Index(products, rules[1]) + if indx1 != -1 && indx2 != -1 && indx2 < indx1 { + inOrder = false + break + } + } + if !inOrder { + break + } + } + if inOrder { + sum += data[1][i][len(data[1][i])/2] + } + } + + return sum, nil +} diff --git a/day-05/internal/one/solve_internal_test.go b/day-05/internal/one/solve_internal_test.go new file mode 100644 index 0000000..e5fd7ea --- /dev/null +++ b/day-05/internal/one/solve_internal_test.go @@ -0,0 +1,15 @@ +package one + +import ( + _ "embed" + "os" + "testing" +) + +//go:embed testdata/input.txt +var data []byte + +func BenchmarkSolve(b *testing.B) { + os.Stdout, _ = os.Open(os.DevNull) + Solve(data) +} diff --git a/day-05/internal/two/benchmark b/day-05/internal/two/benchmark new file mode 100644 index 0000000..f2ac119 --- /dev/null +++ b/day-05/internal/two/benchmark @@ -0,0 +1,6 @@ +goos: linux +goarch: amd64 +pkg: github.com/onyx-and-iris/aoc2024/day-05/internal/two +cpu: Intel(R) Core(TM) i7-8700K CPU @ 3.70GHz +BenchmarkSolve-12 1000000000 0.01270 ns/op +ok github.com/onyx-and-iris/aoc2024/day-05/internal/two 0.083s diff --git a/day-05/internal/two/solve.go b/day-05/internal/two/solve.go new file mode 100644 index 0000000..046ce60 --- /dev/null +++ b/day-05/internal/two/solve.go @@ -0,0 +1,65 @@ +package two + +import ( + "bytes" + "slices" + + log "github.com/sirupsen/logrus" + + "github.com/onyx-and-iris/aoc2024/day-05/internal/util" +) + +func Solve(buf []byte) (int, error) { + r := bytes.NewReader(buf) + data, err := util.ParseLines(r) + if err != nil { + return 0, err + } + + var sum int + + for i, products := range data[1] { + inOrder := true + for _, product := range products { + for _, rulesets := range data[0] { + if !slices.Contains(rulesets, product) { + continue + } + + indx1, indx2 := slices.Index(products, rulesets[0]), slices.Index(products, rulesets[1]) + if indx1 != -1 && indx2 != -1 && indx2 < indx1 { + inOrder = false + break + } + } + if !inOrder { + break + } + } + if !inOrder { + sum += midOfFixedOrder(data[1][i], data[0]) + } + } + + return sum, nil +} + +func midOfFixedOrder(products []int, rulesets [][]int) int { + log.Debugf("unordered products: %v", products) + + for { + var sorts int + for _, ruleset := range rulesets { + indx1, indx2 := slices.Index(products, ruleset[0]), slices.Index(products, ruleset[1]) + if indx1 != -1 && indx2 != -1 && indx2 < indx1 { + products[indx1], products[indx2] = products[indx2], products[indx1] + sorts++ + } + } + if sorts == 0 { + break + } + } + + return products[len(products)/2] +} diff --git a/day-05/internal/two/solve_internal_test.go b/day-05/internal/two/solve_internal_test.go new file mode 100644 index 0000000..ecb05d5 --- /dev/null +++ b/day-05/internal/two/solve_internal_test.go @@ -0,0 +1,15 @@ +package two + +import ( + _ "embed" + "os" + "testing" +) + +//go:embed testdata/input.txt +var data []byte + +func BenchmarkSolve(b *testing.B) { + os.Stdout, _ = os.Open(os.DevNull) + Solve(data) +} diff --git a/day-05/internal/util/util.go b/day-05/internal/util/util.go new file mode 100644 index 0000000..13fcdba --- /dev/null +++ b/day-05/internal/util/util.go @@ -0,0 +1,49 @@ +package util + +import ( + "bufio" + "io" + "log" + "strconv" + "strings" +) + +func MustConv(s string) int { + n, err := strconv.Atoi(s) + if err != nil { + panic(err) + } + return n +} + +func ParseLines(r io.Reader) ([][][]int, error) { + data := make([][][]int, 2) + + filter := func(r rune) bool { + return r == '|' || r == ',' + } + + buf, err := io.ReadAll(r) + if err != nil { + log.Fatal(err) + } + parts := strings.Split(string(buf), "\n\n") + + for i, part := range parts { + scanner := bufio.NewScanner(strings.NewReader(part)) + for scanner.Scan() { + filtered := strings.FieldsFunc(scanner.Text(), filter) + var nums []int + for _, n := range filtered { + nums = append(nums, MustConv(n)) + } + data[i] = append(data[i], nums) + } + + if err := scanner.Err(); err != nil { + return nil, err + } + } + + return data, nil +} diff --git a/day-05/makefile b/day-05/makefile new file mode 100644 index 0000000..4befa5d --- /dev/null +++ b/day-05/makefile @@ -0,0 +1,30 @@ +program = day-05 + +GO = go +SRC_DIR := src +BIN_DIR := bin + +EXE := $(BIN_DIR)/$(program) + +.DEFAULT_GOAL := build + +.PHONY: fmt vet build bench clean +fmt: + $(GO) fmt ./... + +vet: fmt + $(GO) vet ./... + +build: vet | $(BIN_DIR) + $(GO) build -o $(EXE) ./$(SRC_DIR) + +bench: + $(GO) test ./internal/one/ -bench=. > internal/one/benchmark + $(GO) test ./internal/two/ -bench=. > internal/two/benchmark + $(GO) test . -count=10 -bench=. > benchmark + +$(BIN_DIR): + @mkdir -p $@ + +clean: + @rm -rv $(BIN_DIR) diff --git a/day-05/solve.go b/day-05/solve.go new file mode 100644 index 0000000..f200827 --- /dev/null +++ b/day-05/solve.go @@ -0,0 +1,20 @@ +package dayfive + +import ( + "github.com/onyx-and-iris/aoc2024/day-05/internal/one" + "github.com/onyx-and-iris/aoc2024/day-05/internal/two" +) + +func Solve(data []byte) (int, int, error) { + answerOne, err := one.Solve(data) + if err != nil { + return 0, 0, err + } + + answerTwo, err := two.Solve(data) + if err != nil { + return 0, 0, err + } + + return answerOne, answerTwo, nil +} diff --git a/day-05/solve_internal_test.go b/day-05/solve_internal_test.go new file mode 100644 index 0000000..1311379 --- /dev/null +++ b/day-05/solve_internal_test.go @@ -0,0 +1,15 @@ +package dayfive + +import ( + _ "embed" + "os" + "testing" +) + +//go:embed testdata/input.txt +var data []byte + +func BenchmarkSolve(b *testing.B) { + os.Stdout, _ = os.Open(os.DevNull) + Solve(data) +}