refactor from c to racket

1 files changed, 0 insertions, 80 deletions

diff --git a/advent-of-code/2023/07/part1.rkt b/advent-of-code/2023/07/part1.rkt
deleted file mode 100644
index a22571d..0000000
--- a/advent-of-code/2023/07/part1.rkt
+++ /dev/null
@@ -1,80 +0,0 @@
-#lang racket
-
-(define input 
-  (with-input-from-file "input"
-    (lambda ()
-      (let loop ((cards '()))
-        (define line (read-line))
-        (if (or (eof-object? line)
-              (= 0 (string-length line)))
-          (reverse cards)
-          (let ()
-            (define splited-line (string-split line))
-            (define hand (car splited-line))
-            (define bid (string->number (cadr splited-line)))
-            (loop (cons (list hand bid) cards))))))))
-
-(define (card-number char)
-  (cond ((eq? char #\A) 12)
-        ((eq? char #\K) 11)
-        ((eq? char #\Q) 10)
-        ((eq? char #\J) 9)
-        ((eq? char #\T) 8)
-        (else (- (string->number (make-string 1 char))
-                 2))))
-
-(define (hand-type hand)
-  (define vec (make-vector 13 0))
-  (let loop ((i 0))
-    (if (>= i 5)
-      (vector->list (vector-sort vec >))
-      (let ()
-        (define index (card-number (string-ref hand i)))
-        (vector-set! vec index (+ 1 (vector-ref vec index)))
-        (loop (+ i 1))))))
-
-(define (hand-type<? type1 type2)
-  (if (or (null? type1)
-          (null? type2))
-    #f
-    (if (= (car type1) (car type2))
-      (hand-type<? (cdr type1) (cdr type2))
-      (< (car type1) (car type2)))))
-
-(define (hand-type=? type1 type2)
-  (if (null? type1)
-    #t
-    (if (= (car type1) (car type2))
-      (hand-type=? (cdr type1) (cdr type2))
-      #f)))
-
-(define (raw-hand<? hand1 hand2)
-    (define h1 (map card-number (string->list hand1)))
-    (define h2 (map card-number (string->list hand2)))
-    (hand-type<? h1 h2))
-
-(define (hand<? hand1 hand2)
-  (define type1 (hand-type hand1))
-  (define type2 (hand-type hand2))
-  (if (hand-type=? type1 type2)
-    (raw-hand<? hand1 hand2)
-    (hand-type<? type1 type2)))
-
-(define sorted-cards
-  (sort input (lambda (a b)
-                (hand<? (car a) (car b)))))
-
-(define (calc-points card)
-    (* (cadar card) (cadr card)))
-
-(define (enumerate lst)
-  (let loop ((i 1) (ret '()) (remain lst))
-    (if (null? remain)
-      (reverse ret)
-      (loop (+ 1 i) (cons (list (car remain) i) ret) (cdr remain)))))
-
-(define result
-  (apply + (map calc-points (enumerate sorted-cards))))
-
-(display result)
-(newline)