2 files changed, 40 insertions, 0 deletions
diff --git a/day7/day7.py b/day7/day7.py
index 1f26537..1eb6c57 100644
--- a/day7/day7.py
+++ b/day7/day7.py
@@ -33,3 +33,36 @@ while True:
         break
     else:
         bags = new_bags
+
+
+mapping = dict()
+
+# Put bags into dict structure
+for section in sections:
+    parent, child_str = section.split(" bags contain ")
+    children = []
+    if "no other bags" not in child_str:
+        for child in child_str.replace(".", "").split(", "):
+            count, adjective, color, _ = prog.match(child).groups()
+            for x in range(int(count)):
+                children.append(f"{adjective} {color}")
+    if parent not in mapping:
+        mapping[parent] = []
+    for child in children:
+        mapping[parent].append(child)
+
+bags = list(mapping['shiny gold'])
+count = 0
+new_bags = []
+while True:
+    new_bags = []
+    for x in bags:
+        count += 1
+        if mapping[x] == []:
+            continue
+        else:
+            new_bags.extend(mapping[x])
+    bags = new_bags
+    if new_bags == []:
+        print(count)
+        break
diff --git a/day7/input_test b/day7/input_test
new file mode 100644
index 0000000..2723ca0
--- /dev/null
+++ b/day7/input_test
@@ -0,0 +1,7 @@
+shiny gold bags contain 2 dark red bags.
+dark red bags contain 2 dark orange bags.
+dark orange bags contain 2 dark yellow bags.
+dark yellow bags contain 2 dark green bags.
+dark green bags contain 2 dark blue bags.
+dark blue bags contain 2 dark violet bags.
+dark violet bags contain no other bags.