98 lines
3.0 KiB
Common Lisp
98 lines
3.0 KiB
Common Lisp
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(defparameter *test-input-1* "mjqjpqmgbljsphdztnvjfqwrcgsmlb")
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(defparameter *test-input-2* "bvwbjplbgvbhsrlpgdmjqwftvncz")
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(defparameter *test-input-3* "nppdvjthqldpwncqszvftbrmjlhg")
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(defparameter *test-input-4* "nznrnfrfntjfmvfwmzdfjlvtqnbhcprsg")
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(defparameter *test-input-5* "zcfzfwzzqfrljwzlrfnpqdbhtmscgvjw")
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(defun all-char-different-p (str)
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)
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;; (set-difference (list 1 2 3 1 1) (list 3))
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(ql:quickload "fset")
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(defparameter *test-set* (fset:empty-set))
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(fset:with *test-set* 4)
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(fset:set 'a 'ab 'c)
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(fset:set '(a b c ))
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(apply #'fset:set '(a b c))
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(eval (macroexpand `(fset:set ,@'(1 2 3))))
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(fset:size (coerce "hello" 'list))
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(subseq (coerce *test-input-1* 'list) 0 4)
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(let
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((str *test-input-5*))
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(do*
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((line (coerce str 'list) (cdr line))
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(checked-suf (subseq line 0 4) (subseq line 0 4))
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(suf-set (eval (macroexpand `(fset:set ,@(coerce checked-suf 'list)))) (eval (macroexpand `(fset:set ,@(coerce checked-suf 'list)))))
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(ind 4 (1+ ind)))
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((= 4 (fset:size suf-set)) ind)
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(format t "another step with ~A~%" checked-suf)))
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(subseq '(a b c d s e t d) 0 5)
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(defun get-index-after-first-quad-unique (str)
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(do*
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((line (coerce str 'list)
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(cdr line))
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(checked-suf (subseq line 0 4)
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(subseq line 0 4))
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(suf-set (eval (macroexpand `(fset:set ,@(coerce checked-suf 'list))))
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(eval (macroexpand `(fset:set ,@(coerce checked-suf 'list)))))
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(ind 4 (1+ ind)))
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((= 4 (fset:size suf-set))
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ind)))
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(with-open-file (in "day6-input.txt")
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(let ((line (read-line in)))
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(get-index-after-first-quad-unique line)))
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(defun get-index-after-first-14-unique (str)
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(do*
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((line (coerce str 'list)
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(cdr line))
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(checked-suf (subseq line 0 14)
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(subseq line 0 14))
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(suf-set (eval (macroexpand `(fset:set ,@(coerce checked-suf 'list))))
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(eval (macroexpand `(fset:set ,@(coerce checked-suf 'list)))))
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(ind 14 (1+ ind)))
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((= 14 (fset:size suf-set))
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ind)))
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(get-index-after-first-14-unique *test-input-1*)
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(get-index-after-first-14-unique *test-input-2*)
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(get-index-after-first-14-unique *test-input-3*)
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(get-index-after-first-14-unique *test-input-4*)
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(get-index-after-first-14-unique *test-input-5*)
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(with-open-file (in "day6-input.txt")
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(let ((line (read-line in)))
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(get-index-after-first-14-unique line)))
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;;; but in Scala it would be something like this:
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;; "mjqjpqmgbljsphdztnvjfqwrcgsmlb".toList
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;; .sliding(4)
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;; .map(_.toSet)
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;; .zipWithIndex
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;; .find(_._1.size == 4)
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;; .map(_._2 + 4)
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;; def findIndexAfterNUnique(str: String, n: Int): Option[Int] = {
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;; str.toList
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;; .sliding(n)
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;; .map(_.toSet)
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;; .zipWithIndex
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;; .find(_._1.size == n)
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;; .map(_._2 + n)
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;; }
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;; findIndexAfterNUnique("mjqjpqmgbljsphdztnvjfqwrcgsmlb", 4)
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;; findIndexAfterNUnique("bvwbjplbgvbhsrlpgdmjqwftvncz", 4)
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;; findIndexAfterNUnique("nppdvjthqldpwncqszvftbrmjlhg", 4)
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;; findIndexAfterNUnique("nznrnfrfntjfmvfwmzdfjlvtqnbhcprsg", 4)
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;; findIndexAfterNUnique("zcfzfwzzqfrljwzlrfnpqdbhtmscgvjw", 4)
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