day 4 part 2

1 files changed, 11 insertions, 10 deletions

diff --git a/04/main.py b/04/main.py
index 1c42aa4..dfe63d9 100755
--- a/04/main.py
+++ b/04/main.py
@@ -2,24 +2,25 @@
 import sys
 import re
 
-sum = 0
+card_count_map = {}
 for line in sys.stdin:
   line = line.strip()
   card_id, sets = line.split(":")
   card_id = int(re.sub("[^0-9]", "", card_id))
+  card_count_map[card_id] = card_count_map.get(card_id, 1)
 
-  winning_set, holding_set = sets.split("|")
+  winning_numbers, holding_numbers = [set(x.split()) for x in sets.split("|")]
 
-  winning_numbers = set(winning_set.split())
-  holding_numbers = set(holding_set.split())
-
-  points = 0
+  matches = 0
   for num in holding_numbers:
     if num in winning_numbers:
-      points += 1
+      matches += 1
 
-  if points > 0:
-    sum += 2 ** (points - 1)
+  print(f"card {card_id} has {matches} matches")
+  for x in range(matches):
+    index = card_id + x + 1
+    card_count_map[index] = card_count_map.get(index, 1) + card_count_map[card_id]
+    print(f"card_count_map[{index}] = {card_count_map[index]}")
 
-print(f">> {sum}")
+print(f">> {sum(list(card_count_map.values()))}")