Day 10

day10/part1.py

@@ -1,18 +1,14 @@
 #!/usr/bin/env python3
 
 lines = (x.strip() for x in open("input.txt"))
-signals = 0
-x = 1
-nxt = 20
-pos = 0
+signals, x, pos = 0, 1, 0
 
 for line in lines:
-    pos += 2 if line[0] == 'a' else 1
-    if pos >= nxt:
-        signals += nxt * x
-        nxt += 40
-    if line[0] == 'a':
-        x += int(line[5:])
+    is_add = line[0] == 'a'
+    for _ in range(1 + is_add):
+        pos += 1
+        signals += pos * x if pos % 40 == 20 else 0
+    x += int(line[5:]) if is_add else 0
 
 print(signals)
 

day10/part2.py

@@ -5,9 +5,9 @@ sprite = 0
 crt = ''
 
 for line in lines:
-    crt += '#' if sprite <= len(crt) % 40 < sprite + 3 else ' '
+    crt += '█' if sprite <= len(crt) % 40 < sprite + 3 else ' '
     if line[0] == 'a':
-        crt += '#' if sprite <= len(crt) % 40 < sprite + 3 else ' '
+        crt += '█' if sprite <= len(crt) % 40 < sprite + 3 else ' '
         sprite += int(line[5:])
 
 for i in range(6):