utils

func Abs ¶

func Abs[T signed](num T) T

func All ¶

func All[T any](arr []T, cb func(x T, i int) bool) bool

python's all() function, kinda

func GetSignPoint ¶

func GetSignPoint(point image.Point) image.Point

convert vector into a sign vector ex: {4,0} -> {1,0} and {0,-4} -> {0,-1}

func ManhattanDistance ¶

func ManhattanDistance(a, b image.Point) int

func Max ¶

func Max[T numeric](nums ...T) T

func Min ¶

func Min[T numeric](nums ...T) T

func ParseInt ¶

func ParseInt(str string) int

panics if int cannot be parsed from string

func ReadEmptyLineGroups ¶

func ReadEmptyLineGroups(file string) (content []string)

splits and trims file to return empty-new-line-separated groups

func ReadFile ¶

func ReadFile(file string) (content string)

read entire file as a string

func ReadInts ¶

func ReadInts(file string) (content []int)

read lines into []int

func ReadLines ¶

func ReadLines(file string) (lines []string)

read lines into []string

func ReadLinesFunc ¶

func ReadLinesFunc[T comparable](file string, parser func(s string) T) (lines []T)

helper for parsing lines of text from a file

func RunSolvers ¶

func RunSolvers[T any, O any](day Day[T, O])

abstract boilerplate to run solvers for each day