1 files changed, 26 insertions, 26 deletions
diff --git a/10/1.rkt b/10/1.rkt
index 3d9801c..7b1b8c5 100644
--- a/10/1.rkt
+++ b/10/1.rkt
@@ -16,12 +16,12 @@
 (define (find-start)
   (let loop ((x 0) (y 0))
     (if (>= y height)
-      #f
-      (if (>= x width)
-        (loop 0 (+ y 1))
-        (if (char=? #\S (char-at x y))
-          (cons x y)
-          (loop (+ x 1) y))))))
+        #f
+        (if (>= x width)
+            (loop 0 (+ y 1))
+            (if (char=? #\S (char-at x y))
+                (cons x y)
+                (loop (+ x 1) y))))))
 
 (define start (find-start))
 
@@ -37,18 +37,18 @@
     (define down (cons (car start) (+ (cdr start) 1)))
     (define left (cons (- (car start) 1) (cdr start)))
     (define right (cons (+ (car start) 1) (cdr start)))
-      (cond ((and (valid-pos? up)
-                  (member (char-at (car up) (cdr up)) (list #\| #\F #\7)))
-            up)
-            ((and (valid-pos? down)
-                  (member (char-at (car down) (cdr down)) (list #\| #\L #\J )))
-            down)
-            ((and (valid-pos? left)
-                  (member (char-at (car left) (cdr left)) (list #\- #\F #\L )))
-            left)
-            ((and (valid-pos? right)
-                  (member (char-at (car right) (cdr right)) (list #\- #\7 #\J)))
-            right))))
+    (cond ((and (valid-pos? up)
+                (member (char-at (car up) (cdr up)) (list #\| #\F #\7)))
+           up)
+          ((and (valid-pos? down)
+                (member (char-at (car down) (cdr down)) (list #\| #\L #\J )))
+           down)
+          ((and (valid-pos? left)
+                (member (char-at (car left) (cdr left)) (list #\- #\F #\L )))
+           left)
+          ((and (valid-pos? right)
+                (member (char-at (car right) (cdr right)) (list #\- #\7 #\J)))
+           right))))
 
 (define (next cur recent)
   (define up (cons (car cur) (- (cdr cur) 1)))
@@ -65,19 +65,19 @@
           ((char=? c #\J) (list up left))))
   (let loop ((cur possible-pos))
     (if (not (equal? (car cur) recent))
-      (car cur)
-      (loop (cdr cur)))))
+        (car cur)
+        (loop (cdr cur)))))
 
 (define (simulate)
   (let loop ((i 0) (cur first-pos) (recent start))
     (if (equal? cur start)
-      i
-      (let ()
-        (define next-loc (next cur recent))
-        (loop (+ i 1) next-loc cur)))))
+        i
+        (let ()
+          (define next-loc (next cur recent))
+          (loop (+ i 1) next-loc cur)))))
 
 (define loop-length (simulate))
 
 (if (= 0 (modulo loop-length 2))
-  (/ loop-length 2)
-  (+ 1 (quotient loop-length 2)))
+    (/ loop-length 2)
+    (+ 1 (quotient loop-length 2)))