1 files changed, 37 insertions, 37 deletions

diff --git a/advent-of-code/2023/03/1.rkt b/advent-of-code/2023/03/1.rkt
index 2b9a1d2..5e86227 100644
--- a/advent-of-code/2023/03/1.rkt
+++ b/advent-of-code/2023/03/1.rkt
@@ -5,7 +5,7 @@
 
 (define (read-input)
   (call-with-input-file "input"
-    (lambda (fp) 
+    (λ (fp)
       (list->vector (get-lines fp)))))
 
 (define schema (read-input))
@@ -22,29 +22,29 @@
   (define nums '())
   (let loop ((i 0))
     (if (>= i height)
-      (void)
-      (let ()
-        (let loop ((j 0))
+        (void)
+        (let ()
+          (let loop ((j 0))
             (define curline (vector-ref schema i))
             (if (>= j width)
-            (void)
-            (let ()
-                (define next 1)
-                (define (find-next)
-                  (if (or (>= (+ j next) 140)
-                          (not (char-numeric? (char-at i (+ j next)))))
-                    (void)
-                    (let ()
-                      (set! next (+ 1 next))
-                      (find-next))))
-                (if (char-numeric? (char-at i j))
-                  (let ()
-                    (find-next)
-                    (define value (string->number (substring curline j (+ j next))))
-                    (set! nums (cons (make-num i j value next) nums)))
-                  (void))
-                (loop (+ j next)))))
-        (loop (+ 1 i)))))
+                (void)
+                (let ()
+                  (define next 1)
+                  (define (find-next)
+                    (if (or (>= (+ j next) 140)
+                            (not (char-numeric? (char-at i (+ j next)))))
+                        (void)
+                        (let ()
+                          (set! next (+ 1 next))
+                          (find-next))))
+                  (if (char-numeric? (char-at i j))
+                      (let ()
+                        (find-next)
+                        (define value (string->number (substring curline j (+ j next))))
+                        (set! nums (cons (make-num i j value next) nums)))
+                      (void))
+                  (loop (+ j next)))))
+          (loop (+ 1 i)))))
   (reverse nums))
 (define nums (scan-nums))
 
@@ -55,30 +55,30 @@
 (define (collect-adjacent num)
   (define left
     (if (= 0 (num 'col))
-      '()
-      (list (char-at (num 'line) (- (num 'col) 1)))))
+        '()
+        (list (char-at (num 'line) (- (num 'col) 1)))))
   (define right
     (if (= width (+ (num 'col) (num 'length)))
-      '()
-      (list (char-at (num 'line) (+ (num 'col) (num 'length))))))
+        '()
+        (list (char-at (num 'line) (+ (num 'col) (num 'length))))))
   (define up
     (if (= 0 (num 'line))
-      '()
-      (string->list
-        (substring (vector-ref schema (- (num 'line) 1))
-                   (max 0 (- (num 'col) 1))
-                   (min width (+ (num 'col) (num 'length) 1))))))
+        '()
+        (string->list
+         (substring (vector-ref schema (- (num 'line) 1))
+                    (max 0 (- (num 'col) 1))
+                    (min width (+ (num 'col) (num 'length) 1))))))
   (define down
     (if (= (- height 1) (num 'line))
-      '()
-      (string->list
-        (substring (vector-ref schema (+ (num 'line) 1))
-                   (max 0 (- (num 'col) 1))
-                   (min width (+ (num 'col) (num 'length) 1))))))
+        '()
+        (string->list
+         (substring (vector-ref schema (+ (num 'line) 1))
+                    (max 0 (- (num 'col) 1))
+                    (min width (+ (num 'col) (num 'length) 1))))))
   (append left right up down))
 
 (define (is-part-num? num)
   (findf is-symbol? (collect-adjacent num)))
 
-(apply + (map (lambda (x) (x 'value))
+(apply + (map (λ (x) (x 'value))
               (filter is-part-num? nums)))
\ No newline at end of file