day 1 part 2

day01/sol.py

@@ -1,13 +1,23 @@
 input = open("input")
 
 t = 0
+t2 = 0
 dial = 50
 for line in input:
     line = line.strip().replace("L","-").replace("R","")
     n = int(line)
-    dial += n
-    dial %= 100
+    sgn = n/abs(n)
+    # this is O(n)
+    # could do something fancier but
+    # none of the inputs are large enough
+    # for this to be a noticeable slowdown
+    for i in range(abs(n)):
+        dial += sgn
+        dial %= 100
+        if dial == 0:
+            t2 += 1
     if dial == 0:
         t += 1
 
 print(t)
+print(t2)