advent2021

package module

v0.0.0-...-acf6961 Latest Latest Go to latest Published: Dec 21, 2021 License: MIT Imports: 9 Imported by: 0

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Repository

github.com/chigley/advent2021

Links

Open Source Insights

README ¶

advent2021

Advent of Code 2021 solutions.

Documentation ¶

Index ¶

Variables
func Abs(x int) int
func IsLower(s string) bool
func Max(x, y int) int
func MaxInts(ns []int) int
func Min(x, y int) int
func MinInts(ns []int) int
func Product(ns []int) int
func ReadIntLines(name string) ([][]int, error)
func ReadIntLinesReader(r io.Reader) ([][]int, error)
func ReadInts(name string) ([]int, error)
func ReadStringGroups(name string) ([][]string, error)
func ReadStrings(name string) ([]string, error)
func Sign(x int) int
func Sum(ns []int) int
type XY

Constants ¶

This section is empty.

Variables ¶

View Source

var (
	ErrMissingInput = errors.New("advent2021: missing input")
	ErrNoSolution   = errors.New("advent2021: no solution")
)

View Source

var (
	North = XY{0, 1}
	East  = XY{1, 0}
	South = XY{0, -1}
	West  = XY{-1, 0}

	NorthEast = XY{1, 1}
	SouthEast = XY{1, -1}
	SouthWest = XY{-1, -1}
	NorthWest = XY{-1, 1}

	Dirs         = [4]XY{North, East, South, West}
	DiagonalDirs = [4]XY{NorthEast, SouthEast, SouthWest, NorthWest}
)

Functions ¶

func Abs ¶

func Abs(x int) int

func IsLower ¶

func IsLower(s string) bool

func Max ¶

func Max(x, y int) int

func MaxInts ¶

func MaxInts(ns []int) int

func Min ¶

func Min(x, y int) int

func MinInts ¶

func MinInts(ns []int) int

func Product ¶

func Product(ns []int) int

func ReadIntLines ¶

func ReadIntLines(name string) ([][]int, error)

func ReadIntLinesReader ¶

func ReadIntLinesReader(r io.Reader) ([][]int, error)

func ReadInts ¶

func ReadInts(name string) ([]int, error)

func ReadStringGroups ¶

func ReadStringGroups(name string) ([][]string, error)

ReadStringGroups reads a file of string data formed of groups of lines, where groups are separated by an empty line.

func ReadStrings ¶

func ReadStrings(name string) ([]string, error)

func Sign ¶

func Sign(x int) int

func Sum ¶

func Sum(ns []int) int

Types ¶

type XY ¶

type XY struct {
	X, Y int
}

func (XY) Add ¶

func (p1 XY) Add(p2 XY) XY

func (XY) InRange ¶

func (p XY) InRange(x [2]int, y [2]int) bool

func (XY) Multiply ¶

func (p XY) Multiply(n int) XY

func (XY) Neighbours ¶

func (p XY) Neighbours(includeDiagonals bool) []XY

func (XY) Sign ¶

func (p XY) Sign() XY

func (XY) Subtract ¶

func (p1 XY) Subtract(p2 XY) XY

Source Files ¶

View all Source files

Directories ¶

Path	Synopsis
bfs
day01
day02
day03
day04
day05
day06
day07
day08
day09
day10
day11
day12
day13
day14
day15
day16
day17
day18
day20
day21
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