2 files changed, 0 insertions, 167 deletions
diff --git a/advent-of-code/2023/07/1.rkt b/advent-of-code/2023/07/1.rkt
deleted file mode 100644
index 286a0e8..0000000
--- a/advent-of-code/2023/07/1.rkt
+++ /dev/null
@@ -1,80 +0,0 @@
-#lang racket
-
-(define input
-  (with-input-from-file "input"
-    (λ ()
-      (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 (λ (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)
diff --git a/advent-of-code/2023/07/2.rkt b/advent-of-code/2023/07/2.rkt
deleted file mode 100644
index 07ff61b..0000000
--- a/advent-of-code/2023/07/2.rkt
+++ /dev/null
@@ -1,87 +0,0 @@
-#lang racket
-
-(define input
-  (with-input-from-file "input"
-    (λ ()
-      (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) 0)
-        ((eq? char #\T) 9)
-        (else (- (string->number (make-string 1 char))
-                 1))))
-
-(define (joker-transform type)
-  (define joker-num (vector-ref type 0))
-  (vector-set! type 0 0)
-  (vector-sort! type >)
-  (vector-set! type 0 (+ joker-num (vector-ref type 0)))
-  type)
-
-(define (hand-type hand)
-  (define vec (make-vector 13 0))
-  (let loop ((i 0))
-    (if (>= i 5)
-        (vector->list (joker-transform 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 (λ (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)