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 Go to latest Published: Dec 31, 2023 License: MIT Imports: 11 Imported by: 0

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advent/lib-go

Some utilities to help with Advent of Code puzzles

Documentation

Index

Constants

This section is empty.

Variables

View Source 
var EightNeighbourOffsets = []Point{
	Point{X: -1, Y: -1}, Point{X: 0, Y: -1}, Point{X: 1, Y: -1},
	Point{X: -1, Y: 0}, Point{X: 1, Y: 0},
	Point{X: -1, Y: 1}, Point{X: 0, Y: 1}, Point{X: 1, Y: 1},
}
View Source 
var FourNeighbourOffsets = []Point{
	Point{X: 0, Y: -1},
	Point{X: -1, Y: 0}, Point{X: 1, Y: 0},
	Point{X: 0, Y: 1},
}

Functions

func Abs 

func Abs[T AoCSigned](x T) T

func Abs64 

func Abs64(a int64) int64

func BinToInt 

func BinToInt(s string) int

func Blue 

func Blue(s string) string

func Bold 

func Bold(s string) string

func ChompInt 

func ChompInt[T AoCSigned](in []byte, i int) (int, T)

func ChompOneOrTwoCharUInt 

func ChompOneOrTwoCharUInt[T AoCInt](in []byte, i int) (int, T)

func ChompToNextLine 

func ChompToNextLine(in []byte, i int) int

func ChompUInt 

func ChompUInt[T AoCInt](in []byte, i int) (j int, n T)

func ClearScreen 

func ClearScreen() string

func CursorTo 

func CursorTo(x int, y int) string

func Cyan 

func Cyan(s string) string

func DEBUG 

func DEBUG() bool

func FP2UKeyMax 

func FP2UKeyMax(bits int) int

func FP3UKeyMax 

func FP3UKeyMax(bits int, zbits int) int

func FastBytes 

func FastBytes(l []byte) []byte

func FastInt64s 

func FastInt64s(l []byte, expected int) []int64

func FastInts 

func FastInts(l []byte, expected int) []int

func FastSignedInts 

func FastSignedInts(l []byte, expected int) []int

func GCD 

func GCD(a, b int64) int64

func Green 

func Green(s string) string

func InputBytes 

func InputBytes(embedded []byte) []byte

func InputChunks 

func InputChunks(embedded []byte) []string

func InputFile 

func InputFile() string

func InputInts 

func InputInts(embedded []byte) []int

func InputLines 

func InputLines(embedded []byte) []string

func InputString 

func InputString(embedded []byte) string

func IntListContains 

func IntListContains(l []int, e int) bool

func IntToBin 

func IntToBin(n int) string

func Ints 

func Ints(l string) []int

func LCM 

func LCM(a, b int64, integers ...int64) int64

func Magenta 

func Magenta(s string) string

func Max 

func Max[T AoCInt](a ...T) T

func MaxInt 

func MaxInt(a ...int) int

func MaxInt64 

func MaxInt64(a ...int64) int64

func MedianOfMedians 

func MedianOfMedians(inp []int, n int) int

func Min 

func Min[T AoCInt](a ...T) T

func MinInt 

func MinInt(a ...int) int

func MinInt64 

func MinInt64(a ...int64) int64

func Mod 

func Mod[T AoCSigned](n, m T) T

func ModExp 

func ModExp(b, e, m uint) uint

func MustParseInt 

func MustParseInt(s string) int

func MustParseInt64 

func MustParseInt64(s string) int64

func MustParseUint 

func MustParseUint(s string) uint

func MustParseUint64 

func MustParseUint64(s string) uint64

func NeverToBigMod 

func NeverToBigMod[T AoCSigned](n, m T) T

func NumberString 

func NumberString(s string) string

func NumberStrings 

func NumberStrings(s string) []string

func Permutations 

func Permutations(min, max int) [][]int

func Product 

func Product[T AoCInt](ints ...T) T

func Product64 

func Product64(ints ...int64) int64

func ReadChunks 

func ReadChunks(file string) []string

func ReadFileBytes 

func ReadFileBytes(file string) []byte

func ReadFileChunks 

func ReadFileChunks(file string) []string

func ReadFileIntLines 

func ReadFileIntLines(file string) [][]int

func ReadFileInts 

func ReadFileInts(file string) []int

func ReadFileLines 

func ReadFileLines(file string) []string

func ReadInputBytes 

func ReadInputBytes() []byte

func ReadInputChunks 

func ReadInputChunks() []string

func ReadInputIntLines 

func ReadInputIntLines() [][]int

func ReadInputInts 

func ReadInputInts() []int

func ReadInputLines 

func ReadInputLines() []string

func ReadInt64s 

func ReadInt64s(lines []string) ([]int64, error)

func ReadInts 

func ReadInts(in []string) []int

func ReadIntsFromFile 

func ReadIntsFromFile(file string) []int

ReadIntsFromFile slurps input from a file into a list of integers

func ReadLines 

func ReadLines(file string) []string

ReadLines slurps input from a file into a list of lines (strings)

func Red 

func Red(s string) string

func ReverseIntList 

func ReverseIntList(lines []int) []int

func ReverseString 

func ReverseString(s string) (r string)

func ReverseStringList 

func ReverseStringList(lines []string) []string

func RotateStrings 

func RotateStrings(lines []string) []string

func ScanInt 

func ScanInt(in []byte, i int) (int, int)

func ScanUint 

func ScanUint(in []byte, i int) (int, int)

func Screen 

func Screen() (int, int)

func SimpleMedianN 

func SimpleMedianN(inp []int, n int) int

func SimpleReadInt64s 

func SimpleReadInt64s(l string) []int64

func SimpleReadInts 

func SimpleReadInts(l string) []int

func StringListContains 

func StringListContains(l []string, e string) bool

func Sum 

func Sum[T AoCInt](ints ...T) T

func Sum64 

func Sum64(ints ...int64) int64

func VISUAL 

func VISUAL() bool

func Variations 

func Variations(k, n int) [][]int

func VisitInts 

func VisitInts[T AoCSigned](in []byte, until byte, i *int, fn func(n T))

func VisitSplit 

func VisitSplit(in []byte, sep, until byte, i *int, fn func(s []byte))

func VisitUints 

func VisitUints[T AoCInt](in []byte, until byte, i *int, fn func(n T))

func VisitWords 

func VisitWords(in []byte, until byte, i *int, fn func(w []byte, term byte))

func XSloppyReadInts 

func XSloppyReadInts(lines []string) []int

func Yellow 

func Yellow(s string) string

Types

type AlphaNumSet 

type AlphaNumSet uint64

func AlphaNumBit 

func AlphaNumBit(ch byte) AlphaNumSet

func NewAlphaNumSet 

func NewAlphaNumSet() AlphaNumSet

func (AlphaNumSet) Add 

func (s AlphaNumSet) Add(ch byte) AlphaNumSet

func (AlphaNumSet) Contains 

func (s AlphaNumSet) Contains(ch byte) bool

func (AlphaNumSet) Size 

func (s AlphaNumSet) Size() int

func (AlphaNumSet) String 

func (s AlphaNumSet) String() string

type AoCInt 

type AoCInt interface{ AoCUnsigned | AoCSigned }

type AoCSigned 

type AoCSigned interface {
	~byte | int | ~int8 | ~int16 | ~int32 | ~int64
}

type AoCUnsigned 

type AoCUnsigned interface {
	~uint | ~uint8 | ~uint16 | ~uint32 | ~uint64
}

type BoundingBox 

type BoundingBox struct {
	Min Point
	Max Point
}

BoundingBox is a 2D bounding box representing by min and max points

func NewBoundingBox 

func NewBoundingBox() *BoundingBox

func (*BoundingBox) Add 

func (bb *BoundingBox) Add(p Point)

func (*BoundingBox) Contains 

func (bb *BoundingBox) Contains(p Point) bool

func (*BoundingBox) String 

func (bb *BoundingBox) String() string

type ByteCounter 

type ByteCounter interface {
	Inc(byte)
	Add(byte, int)
	Top(int) []byte
	Bottom(int) []byte
	Count(byte) int
}

func NewMapByteCounter 

func NewMapByteCounter(n int) ByteCounter

func NewSliceByteCounter 

func NewSliceByteCounter(n int) ByteCounter

type ByteMap 

type ByteMap struct {
	// contains filtered or unexported fields
}

func NewByteMap 

func NewByteMap(in []byte) (i *ByteMap)

func (*ByteMap) Add 

func (m *ByteMap) Add(i int, v byte)

func (*ByteMap) Contains 

func (m *ByteMap) Contains(i int) bool

func (*ByteMap) Get 

func (m *ByteMap) Get(i int) byte

func (*ByteMap) GetXY 

func (m *ByteMap) GetXY(x, y int) byte

func (*ByteMap) Height 

func (m *ByteMap) Height() int

func (*ByteMap) IndexToString 

func (m *ByteMap) IndexToString(i int) string

func (*ByteMap) IndexToXY 

func (m *ByteMap) IndexToXY(i int) (int, int)

func (*ByteMap) NeighbourValues 

func (m *ByteMap) NeighbourValues(i int) []byte

func (*ByteMap) Neighbours 

func (m *ByteMap) Neighbours(i int) []int

func (*ByteMap) Neighbours8 

func (m *ByteMap) Neighbours8(i int) []int

func (*ByteMap) Set 

func (m *ByteMap) Set(i int, v byte)

func (*ByteMap) SetXY 

func (m *ByteMap) SetXY(x, y int, v byte)

func (*ByteMap) Size 

func (m *ByteMap) Size() int

func (*ByteMap) String 

func (m *ByteMap) String() string

func (*ByteMap) Visit 

func (m *ByteMap) Visit(fn func(i int, v byte) (byte, bool))

func (*ByteMap) VisitNeighbours 

func (m *ByteMap) VisitNeighbours(i int, fn func(int, byte))

func (*ByteMap) VisitNeighboursXY 

func (m *ByteMap) VisitNeighboursXY(x, y int, fn func(int, int, byte))

func (*ByteMap) VisitXY 

func (m *ByteMap) VisitXY(fn func(x, y int, v byte) (byte, bool))

func (*ByteMap) VisitXYI 

func (m *ByteMap) VisitXYI(fn func(x, y, i int, v byte) (byte, bool))

func (*ByteMap) Width 

func (m *ByteMap) Width() int

func (*ByteMap) XYToIndex 

func (m *ByteMap) XYToIndex(x, y int) int

type CharCount 

type CharCount struct {
	// contains filtered or unexported fields
}

type Circle 

type Circle struct {
	Num int
	Cw  *Circle
	Ccw *Circle
}

func NewCircle 

func NewCircle(i int) *Circle

func (*Circle) Add 

func (e *Circle) Add(new *Circle)

func (*Circle) AddNew 

func (e *Circle) AddNew(i int) *Circle

func (*Circle) Remove 

func (e *Circle) Remove()

type Combs 

type Combs struct {
	// contains filtered or unexported fields
}

func NewCombs 

func NewCombs(n int, k int) *Combs

func (*Combs) Done 

func (c *Combs) Done() bool

func (*Combs) Get 

func (c *Combs) Get() []int

func (*Combs) Next 

func (c *Combs) Next() []int

type Compass 

type Compass string

func (Compass) Direction 

func (c Compass) Direction() Direction

func (Compass) Opposite 

func (c Compass) Opposite() Compass

type Deque 

type Deque[T any] struct {
	// contains filtered or unexported fields
}

func NewDeque 

func NewDeque[T any](a []T) *Deque[T]

func (*Deque[T]) IsEmpty 

func (d *Deque[T]) IsEmpty() bool

func (*Deque[T]) Len 

func (d *Deque[T]) Len() int

func (*Deque[T]) Pop 

func (d *Deque[T]) Pop() T

func (*Deque[T]) Push 

func (d *Deque[T]) Push(v T)

type Direction 

type Direction struct {
	Dx, Dy int
}

func (Direction) CCW 

func (d Direction) CCW() Direction

func (Direction) CW 

func (d Direction) CW() Direction

func (Direction) Char 

func (d Direction) Char() byte

func (Direction) Compass 

func (d Direction) Compass() Compass

func (Direction) Opposite 

func (d Direction) Opposite() Direction

func (Direction) String 

func (d Direction) String() string

type ElfProg2018 

type ElfProg2018 struct {
	Prog []*Inst
	IP   int
	Reg  [6]int
	// contains filtered or unexported fields
}

func NewElfProg2018 

func NewElfProg2018(lines []string) *ElfProg2018

func (*ElfProg2018) Run 

func (g *ElfProg2018) Run(fn func(*ElfProg2018) bool) int

func (*ElfProg2018) String 

func (g *ElfProg2018) String() string

type FBoundingBox 

type FBoundingBox struct {
	// contains filtered or unexported fields
}

func NewFBoundingBox 

func NewFBoundingBox() *FBoundingBox

func (*FBoundingBox) Add 

func (bb *FBoundingBox) Add(p FP2)

func (*FBoundingBox) AddXY 

func (bb *FBoundingBox) AddXY(x, y int32)

func (*FBoundingBox) Limits 

func (bb *FBoundingBox) Limits() (int32, int32, int32, int32)

func (*FBoundingBox) String 

func (bb *FBoundingBox) String() string

func (*FBoundingBox) XLimits 

func (bb *FBoundingBox) XLimits() (int32, int32)

func (*FBoundingBox) YLimits 

func (bb *FBoundingBox) YLimits() (int32, int32)

type FP2 

type FP2 uint64

func NewFP2 

func NewFP2(x, y int32) FP2

func (FP2) Add 

func (p FP2) Add(o FP2) FP2

func (FP2) CCW 

func (p FP2) CCW() FP2

func (FP2) CW 

func (p FP2) CW() FP2

func (FP2) ManhattanDistance 

func (p FP2) ManhattanDistance(o FP2) int

func (FP2) Norm 

func (p FP2) Norm(o FP2) FP2

func (FP2) NormXY 

func (p FP2) NormXY(o FP2) (int32, int32)

func (FP2) Rotate 

func (p FP2) Rotate(rotation int) FP2

func (FP2) String 

func (p FP2) String() string

func (FP2) Sub 

func (p FP2) Sub(o FP2) FP2

func (FP2) UKey 

func (p FP2) UKey(bits int) uint64

func (FP2) XY 

func (p FP2) XY() (int32, int32)

type FP3 

type FP3 uint64

func NewFP3 

func NewFP3(x, y, z int16) FP3

func (FP3) Add 

func (p FP3) Add(o FP3) FP3

func (FP3) ManhattanDistance 

func (p FP3) ManhattanDistance(o FP3) int

func (FP3) Norm 

func (p FP3) Norm(o FP3) FP3

func (FP3) ProjXY 

func (p FP3) ProjXY() FP3

func (FP3) Rotate 

func (p FP3) Rotate(rotation int) FP3

func (FP3) String 

func (p FP3) String() string

func (FP3) Sub 

func (p FP3) Sub(o FP3) FP3

func (FP3) UKey 

func (p FP3) UKey(bits int, zbits int) uint64

func (FP3) XYZ 

func (p FP3) XYZ() (int16, int16, int16)

type HexPoint 

type HexPoint struct {
	// contains filtered or unexported fields
}

func NewHexPoint 

func NewHexPoint(q, r int) *HexPoint

func (*HexPoint) Distance 

func (h1 *HexPoint) Distance(h2 *HexPoint) int

func (*HexPoint) Move 

func (h *HexPoint) Move(dir string)

func (*HexPoint) Neighbours 

func (h *HexPoint) Neighbours() []*HexPoint

func (*HexPoint) Q 

func (h *HexPoint) Q() int

func (*HexPoint) R 

func (h *HexPoint) R() int

func (*HexPoint) X 

func (h *HexPoint) X() int

func (*HexPoint) Y 

func (h *HexPoint) Y() int

func (*HexPoint) Z 

func (h *HexPoint) Z() int

type Inst 

type Inst struct {
	Op string
	A  int
	B  int
	C  int
}

func (*Inst) String 

func (i *Inst) String() string

type MapByteCounter 

type MapByteCounter struct {
	// contains filtered or unexported fields
}

func (*MapByteCounter) Add 

func (bc *MapByteCounter) Add(ch byte, c int)

func (*MapByteCounter) Bottom 

func (bc *MapByteCounter) Bottom(n int) []byte

func (*MapByteCounter) Count 

func (bc *MapByteCounter) Count(ch byte) int

func (*MapByteCounter) Inc 

func (bc *MapByteCounter) Inc(ch byte)

func (*MapByteCounter) Top 

func (bc *MapByteCounter) Top(n int) []byte

type NumStr 

type NumStr struct {
	// contains filtered or unexported fields
}

func NewNumStr 

func NewNumStr(prefix string) *NumStr

func NewNumStrFromBytes 

func NewNumStrFromBytes(prefix []byte) *NumStr

func (*NumStr) Bytes 

func (n *NumStr) Bytes() []byte

func (*NumStr) Inc 

func (n *NumStr) Inc()

func (*NumStr) String 

func (n *NumStr) String() string

type PerlyString 

type PerlyString struct {
	// contains filtered or unexported fields
}

func NewPerlyString 

func NewPerlyString(pw string) *PerlyString

func (*PerlyString) Bytes 

func (pw *PerlyString) Bytes() []byte

func (*PerlyString) Inc 

func (pw *PerlyString) Inc()

func (*PerlyString) String 

func (pw *PerlyString) String() string

type Perms 

type Perms struct {
	// contains filtered or unexported fields
}

func NewPerms 

func NewPerms(n int) *Perms

func (*Perms) Done 

func (p *Perms) Done() bool

func (*Perms) Get 

func (p *Perms) Get() []int

func (*Perms) Next 

func (p *Perms) Next() []int

type Point 

type Point struct {
	X, Y int
}

Point is a two dimensional point defined by x and y coordinates

func (*Point) In 

func (p *Point) In(d Direction) Point

func (Point) ManhattanDistance 

func (p Point) ManhattanDistance(o Point) int

ManhattanDistance returns the Manhattan distance between a 2d point and another 2d point

func (Point) Neighbours 

func (p Point) Neighbours() []Point

Neighbours returns the four neighbours of a point

func (Point) Neighbours8 

func (p Point) Neighbours8() []Point

Neighbours8 returns the eight neighbours of a point

func (*Point) Norm 

func (p *Point) Norm(o *Point) *Point

func (Point) Size 

func (p Point) Size() float64

func (Point) String 

func (p Point) String() string

type Point3D 

type Point3D struct {
	X, Y, Z int
}

func (Point3D) ManhattanDistance 

func (p Point3D) ManhattanDistance(o Point3D) int

func (Point3D) Size 

func (p Point3D) Size() float64

func (Point3D) String 

func (p Point3D) String() string

type PointPair 

type PointPair struct {
	P1 *Point
	P2 *Point
}

func (*PointPair) Norm 

func (pp *PointPair) Norm() *Point

func (*PointPair) String 

func (pp *PointPair) String() string

type Queue 

type Queue[T any] struct {
	// contains filtered or unexported fields
}

func NewQueue 

func NewQueue[T any](buf []T) *Queue[T]

func (*Queue[T]) Empty 

func (q *Queue[T]) Empty() bool

func (*Queue[T]) Len 

func (q *Queue[T]) Len() int

func (*Queue[T]) Pop 

func (q *Queue[T]) Pop() T

func (*Queue[T]) Push 

func (q *Queue[T]) Push(i T)

type SliceByteCounter 

type SliceByteCounter struct {
	// contains filtered or unexported fields
}

func (*SliceByteCounter) Add 

func (bc *SliceByteCounter) Add(ch byte, c int)

func (*SliceByteCounter) Bottom 

func (bc *SliceByteCounter) Bottom(n int) []byte

func (*SliceByteCounter) Count 

func (bc *SliceByteCounter) Count(ch byte) int

func (*SliceByteCounter) Inc 

func (bc *SliceByteCounter) Inc(ch byte)

func (*SliceByteCounter) Sort 

func (bc *SliceByteCounter) Sort()

func (*SliceByteCounter) String 

func (bc *SliceByteCounter) String() string

func (*SliceByteCounter) Top 

func (bc *SliceByteCounter) Top(n int) []byte

type Subsets 

type Subsets struct {
	// contains filtered or unexported fields
}

func NewSubsets 

func NewSubsets(n int) *Subsets

func (*Subsets) Done 

func (ss *Subsets) Done() bool

func (*Subsets) Get 

func (ss *Subsets) Get() []int

func (*Subsets) Next 

func (ss *Subsets) Next() []int

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