go.mod

@@ -1,7 +1,3 @@
 module git.bizdoc.ro/gabi-public/Advent-of-Code.git
 
 go 1.25.1
-
-require git.bizdoc.ro/private/devkit.git v0.0.0-20250902190935-21cc248cb135
-
-require golang.org/x/exp v0.0.0-20241108190413-2d47ceb2692f // indirect

go.sum

@@ -1,4 +0,0 @@
-git.bizdoc.ro/private/devkit.git v0.0.0-20250902190935-21cc248cb135 h1:mUorxNlLlyvmPuZMKP80RFJVRcI1j85u1g8TDPht7AM=
-git.bizdoc.ro/private/devkit.git v0.0.0-20250902190935-21cc248cb135/go.mod h1:r/tE3YYNlrYNQc9DF4ph2Ur5WYKCtaqOM+8jqvzSoAQ=
-golang.org/x/exp v0.0.0-20241108190413-2d47ceb2692f h1:XdNn9LlyWAhLVp6P/i8QYBW+hlyhrhei9uErw2B5GJo=
-golang.org/x/exp v0.0.0-20241108190413-2d47ceb2692f/go.mod h1:D5SMRVC3C2/4+F/DB1wZsLRnSNimn2Sp/NPsCrsv8ak=

year25/day1.go

@@ -5,10 +5,11 @@ import (
 	"fmt"
 	"io"
 	"iter"
+	"log"
 	"strconv"
 )
 
-func Day1Part1(r io.Reader, l Logger) (any, error) {
+func Day1Part1(r io.Reader, l *log.Logger) (any, error) {
 	dial := 50
 	solution := 0
 	for pair := range day1GetPairs(r) {
@@ -26,7 +27,7 @@ func Day1Part1(r io.Reader, l Logger) (any, error) {
 	return solution, nil
 }
 
-func Day1Part2Slow(r io.Reader, l Logger) (any, error) {
+func Day1Part2Slow(r io.Reader, l *log.Logger) (any, error) {
 	dial := 50
 	solution := 0
 	for pair := range day1GetPairs(r) {
@@ -44,7 +45,7 @@ func Day1Part2Slow(r io.Reader, l Logger) (any, error) {
 	return solution, nil
 }
 
-func Day1Part2Fast(r io.Reader, l Logger) (any, error) {
+func Day1Part2Fast(r io.Reader, l *log.Logger) (any, error) {
 	dial := 50
 	solution := 0
 	for pair := range day1GetPairs(r) {

year25/day2.go

@@ -5,6 +5,7 @@ import (
 	"bytes"
 	"fmt"
 	"io"
+	"log"
 	"strconv"
 	"strings"
 
@@ -50,7 +51,7 @@ func (s *day2Scanner) Bounds() (int, int) {
 	return s.a, s.b
 }
 
-func Day2Part1Simple(r io.Reader, l Logger) (any, error) {
+func Day2Part1Simple(r io.Reader, l *log.Logger) (any, error) {
 	input, err := aocutils.ReadString(r)
 	if err != nil {
 		return nil, fmt.Errorf("failed to read input: %s", err)
@@ -94,7 +95,7 @@ func Day2Part1Simple(r io.Reader, l Logger) (any, error) {
 	return sum, nil
 }
 
-func Day2Part2Simple(r io.Reader, l Logger) (any, error) {
+func Day2Part2Simple(r io.Reader, l *log.Logger) (any, error) {
 	input, err := aocutils.ReadString(r)
 	if err != nil {
 		return nil, fmt.Errorf("failed to read input: %s", err)
@@ -154,7 +155,7 @@ func Day2Part2Simple(r io.Reader, l Logger) (any, error) {
 	return sum, nil
 }
 
-func Day2Part1(r io.Reader, logger Logger) (any, error) {
+func Day2Part1(r io.Reader, logger *log.Logger) (any, error) {
 	inputScanner := bufio.NewScanner(r)
 	inputScanner.Split(aocutils.SplitComma)
 	scanner := &day2Scanner{scanner: inputScanner, sep: '-'}
@@ -181,7 +182,7 @@ func Day2Part1(r io.Reader, logger Logger) (any, error) {
 	return sum, scanner.Err()
 }
 
-func Day2Part2(r io.Reader, logger Logger) (any, error) {
+func Day2Part2(r io.Reader, logger *log.Logger) (any, error) {
 	inputScanner := bufio.NewScanner(r)
 	inputScanner.Split(aocutils.SplitComma)
 

year25/day3.go

@@ -4,16 +4,17 @@ import (
 	"bufio"
 	"fmt"
 	"io"
+	"log"
 	"strings"
 )
 
-func Day3Part1(r io.Reader, l Logger) (any, error) {
+func Day3Part1(r io.Reader, l *log.Logger) (any, error) {
 	return Day3(r, l, 2)
 }
-func Day3Part2(r io.Reader, l Logger) (any, error) {
+func Day3Part2(r io.Reader, l *log.Logger) (any, error) {
 	return Day3(r, l, 12)
 }
-func Day3(r io.Reader, logger Logger, size int) (int64, error) {
+func Day3(r io.Reader, logger *log.Logger, size int) (int64, error) {
 	scanner := bufio.NewScanner(r)
 	scanner.Split(bufio.ScanLines)
 	var sum int64

year25/day4.go

@@ -1,78 +0,0 @@
-package year25
-
-import (
-	"fmt"
-	"io"
-
-	"git.bizdoc.ro/private/devkit.git/collections/geometry/v2"
-)
-
-const Day4PaperRoll = '@'
-
-func Day4Part1(r io.Reader, l Logger) (any, error) {
-	// 4 rolls in 8 adjacent positions
-
-	var accessibleRolls int
-	g, err := geometry.ReaderToByteGrid(r)
-	if err != nil {
-		return nil, fmt.Errorf("day4: failed to read grid: %w", err)
-	}
-
-	for c := range g.Points() {
-		if g.At(c) != Day4PaperRoll {
-			continue
-		}
-
-		var count int
-		for p := range g.SubgridPointsIter(c.MoveUpLeft(), c.MoveDownRight()) {
-			if g.At(p) == Day4PaperRoll {
-				count += 1
-			}
-		}
-
-		if count <= 4 {
-			accessibleRolls += 1
-		}
-	}
-
-	return accessibleRolls, nil
-}
-
-func Day4Part2(r io.Reader, l Logger) (any, error) {
-	// 4 rolls in 8 adjacent positions
-
-	var totalRemovedRolls int
-	g, err := geometry.ReaderToByteGrid(r)
-	if err != nil {
-		return nil, fmt.Errorf("day4: failed to read grid: %w", err)
-	}
-
-	for {
-		removedRolls := 0
-		for c := range g.Points() {
-			if g.At(c) != Day4PaperRoll {
-				continue
-			}
-
-			var count int
-			for p := range g.SubgridPointsIter(c.MoveUpLeft(), c.MoveDownRight()) {
-				if g.At(p) == Day4PaperRoll {
-					count += 1
-				}
-			}
-
-			if count <= 4 {
-				removedRolls += 1
-				g.Set(c, '.') // remove grid
-			}
-		}
-
-		if removedRolls == 0 {
-			break
-		}
-
-		totalRemovedRolls += removedRolls
-	}
-
-	return totalRemovedRolls, nil
-}

year25/utils.go

@@ -1,6 +0,0 @@
-package year25
-
-type Logger interface {
-	Printf(string, ...interface{})
-	Println(...interface{})
-}