utils

func MustPop ¶

func MustPop[T any](s *[]T) T

gets last (LIFO), without checking length

func MustShift ¶

func MustShift[T any](s *[]T) T

gets first (FIFO), without checking length

func NewDay ¶

func NewDay[T any]() *day[T]

it's a new day

func ParseInt ¶

func ParseInt(something string) int

func Pop ¶

func Pop[T any](s *[]T) *T

gets last (LIFO)

func ReadAsLines ¶

func ReadAsLines(filename string) (out []string)

func ReadCSV ¶

func ReadCSV(filename string) (out []string)

func ReadCSVInt ¶

func ReadCSVInt(filename string) (out []int)

func ReadLinesIter ¶

func ReadLinesIter(filename string) iter.Seq[string]

this works fine, but didn't use it anywhere

func ReadSpaceSeparatedSections ¶

func ReadSpaceSeparatedSections(filename string) []string

func ScanCommas ¶

func ScanCommas(data []byte, atEOF bool) (advance int, token []byte, err error)

copied from ScanLines;

just swapped "\n" with "," naively (ignoring quoted commas)

then checked for newline within the comma check

to handle 7,1\n11,1

func Shift ¶

func Shift[T any](s *[]T) *T

gets first (FIFO)

func Sum ¶

func Sum[E ~int](slice []E) (out E)

not sure what E type should be

func SumFunc ¶

func SumFunc[T any, E ~int](slice []T, fun func(_ T) E) (out E)